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Day 6 Part One
Lunar Observation,
Revs 23 to 27
Journal Home Page Day 7: Lunar Observation,
Revs 35 to 45

Apollo 16

Day Six Part Two: Lunar Observation, Revs 27 to 34

Corrected Transcript and Commentary Copyright © 2008 David Woods and Tim Brandt. All rights reserved.
Last updated: 2017-02-17

Start of Chapter and
Rev 27 Acquisition of Signal


Loss of Signal 126:46
Start of Rev 28 127:25
Acquisition of Signal 127:36
Loss of Signal 128:44
Start of Rev 29 129:25
Acquisition of Signal 129:35
Mission Flight Plan discussion 129:41
Mandel'shtam Description 129:49
Loss of Signal 130:45
Start of Rev 30 131:22
Acquisition of Signal 131:32
Loss of Signal 132:41
End of Chapter 140:11

125 42 22 Mattingly: Hello, Houston. Are you there today?

125 42 25 Hartsfield: Hello, Casper. How did it go?

125 42 30 Mattingly: Just fine. Having a ball. Got all kinds of neat little things seen on the - this last rev. Had a chance to start watching right of the terminator and just kind of watched the scenery as it came by in AOS. And I think I did wonders for the magnification of these binoculars by cleaning the lens. I had about given up on them, decided that they weren't as good as I thought they were. Until I found out that one side had somebody's big greasy thumbprint on it. Somebody probably being me.

125 43 07 Hartsfield: Roger.

125 43 15 Mattingly: And, right now, on magazine Victor, I am up to frame 37.

125 43 28 Hartsfield: Roger. Victor, frame 37. And, Ken, I've got some pads for you.

125 43 35 Mattingly: Okay. Let me get my pencil and paper.

125 43 40 Hartsfield: First one's at 126:20, UV Photo Pad.

125 43 48 Mattingly: Okay, hang on a second. Let me get everything velcroed down.

125 44 01 Mattingly: Okay. Say again the time, please, Hank.

125 44 04 Hartsfield: 126:20.

125 44 12 Mattingly: Okay. 126:20. All righty.

125 44 19 Hartsfield: Okay. T-start is 126:19:26.

125 44 29 Mattingly: Okay. 126:19:26.

125 44 33 Hartsfield: And just for info. Somewhere around 126:35, we're going to get you a state vector update. The next pad time is at 127:18.

125 44 46 Mattingly: Okay, 127:18; go ahead.

125 44 49 Hartsfield: Your Gamma Ray deploy time to 15 inches is 14 seconds.

125 44 57 Mattingly: Okay, that will be 14 seconds.

125 45 00 Hartsfield: And your T-start for your Pan - Mapping Camera Pad right there is 127:27:58; T-stop, 130:28:19.

125 45 18 Mattingly: Okay, 127:27:58, 130:28:19.

125 45 23 Hartsfield: Okay, and the Pan Camera Pad at 128:13.

125 45 31 Mattingly: Okay, stand by a second.

125 46 20 Mattingly: Okay. What's the next one now - at 128:10, you say?

125 46 24 Hartsfield: Well - Roger. 128:13 there, the Pan Camera Photo Pad.

125 46 32 Mattingly: Go ahead.

125 46 33 Hartsfield: T-start is 128:19:09, 128:20:47.

125 46 48 Mattingly: Okay, 128:19:09, 128:20:47.

125 46 56 Hartsfield: Okay, that's about all the pads. You say you saw some interesting things on the back side, huh?

125 47 07 Mattingly: Yeah, the real Moon is just like photos - the more you look, the more you see. You'll be happy to know, though, that, until you get used to it, the craters on the real Moon can turn inside out just like they do on (laughter) on the photographs.

125 47 24 Hartsfield: Really?

125 47 25 Mattingly: It's very frustrating.

125 47 34 Mattingly: And it's not always clear which way to turn to - to turn them over.

125 47 40 Hartsfield: Roger; I understand. Hey, I got a little poop on - some of the gamma ray results, if you're interested - in case you're interested in doing some sort of global observations relative to the color or character of large areas on the Moon. The early gamma ray stuff shows that the highest readings occur in the maria areas in the west, including Nubium, Cognitum, and Procellarum. The next highest are in the central highlands from...

125 48 08 Mattingly: Okay, just a second now. The highest stuff is in the mares [sic] - to best...

125 48 18 Hartsfield: Roger. In the west...

125 48 20 Mattingly: ...Cognitum, Nubium, and so on.

125 48 23 Hartsfield: Right. And the next highest - is in the central highlands from Midler to Alphonsus.

125 48 36 Mattingly: Okay, the - you say the highest readings - highest of - of what? Just - just the highest counts?

125 48 43 Hartsfield: I guess just the highest - highest counting rates in the Gamma Spectrometer.

125 48 53 Mattingly: Okay.

125 48 54 Hartsfield: Third highest is Mare Fecunditatis area. And the lowest readings occur in - on the far-side highlands.

125 49 14 Mattingly: Well, I can't - I can tell you they sure look different. They're all black over there. That's always intriguing, when you can't see something.

125 51 02 Hartsfield: And, Ken, these light-colored markings you reported near King Crater - the west of King? Farouk says those are near the crater Abul Wafa. And these may be similar to the swirls of Ibn Yunus, but they are not identical. And for your information, the markings of Abul Wafa are - he uses the term antipodal or opposite to Riccioli, on the western part of your track.

125 51 32 Mattingly: (Laughter)

125 51 34 Hartsfield: That means it's 180 degrees from there.

125 51 36 Mattingly: Tell him that it - it's awfully - Roger; Roger. Tell him it's awful hard to find a place where there - 180 degrees away - there won't be a crater on the Moon.

125 51 45 Hartsfield: (Laughter) Roger.

125 51 48 Mattingly: He'll understand.

125 51 54 Hartsfield: Casper, High Gain on the Auto - Auto on the High Gain.

125 52 00 Mattingly: Sure can.

125 52 21 Mattingly: I got one that's better for him this time, though. I'm not at all sure that those swirls that I saw north of - northwest of King are - are really - like the others or not. I - I tried to get a look at Ibn Yunus this time, and it's still a little too far to the north.

125 55 19 Mattingly: You know, Henry, one of the things that impresses me is that when you look at the mare surface in very high Sun, like I'm doing now, a lot of the very shallow craters that have just very subtle, sweeping walls and are together maybe in a chain or in groups - when you see this at high Sun, it looks exactly like a swirl pattern. If you didn't know that's what it was, you'd - you probably would wonder about it also.

125 55 49 Hartsfield: Roger.

125 57 06 Mattingly: And, Hank, would you give me a warning about 126:18 ?

125 57 11 Hartsfield: Will do.

125 58 27 Mattingly: Hank, looking in the bottom floor of Messier - I think it's the original Messier, the elongate one - the bottom dark material has a little ropey white material that runs down the length of the crater. And at one end, it looks like - sort of like a high-water mark. On the northern - northern and western end of that, it looks like there had been a high-water mark and then maybe this stuff had dropped down. And you see little blocks of that stuff, kind of like the whole thing had just been floating and it had just sunk a little bit.

125 59 28 Mattingly: When I look in the wall of the other one - the round one - it appears that there's a depression in the northwest side where it's kind of pushed in and things may have run down in there. I have the distinct impression that there was an original crater that is not part of the bright one that we see now that's over on the western side.

126 00 29 Mattingly: Yes, as a matter of fact, Messier A does show a secondary crater. And I have the impression that that was an old crater that kind of smoothed and darkened and looked like the rest of these older craters, and that it - Messier A then was penetrated on top of that, or at least formed subsequent to that, and it kind of broke into that wall.

126 00 42 Hartsfield: Roger. The map shows an indication maybe there might be a secondary there.

126 00 48 Mattingly: Yeah, it - I had thought maybe that was a - a terrace - kind of like a slump feature, but apparently that's not the case.

126 01 31 Mattingly: I wish we had some low-Sun pictures of this crater that had the bright splash rays that I took a picture of before, that's about halfway between Messier and Censorinus. I'd swear it's on the top of a - a very shallow rise. And it - appears to me that there is a very slightly darker albedo to the material underneath it - That goes out about the same diameter as the bright rays. Now, it may be that the bright rays are giving it that characteristic just because they're - they may be tenuous enough that they don't show up by themselves, but they may be there.

126 02 32 Mattingly: There's another one a little smaller that's about halfway between the one I just described and Censorinus. And if there's one that I'd agree with Stu has black things that drape down inside it - like that might, but maybe when I get closer, it'll look like shadows. It's kind of hard to tell from here. There are an awful lot of blocks around it, it appears.

126 03 22 Mattingly: I'm looking now at this bright, depressed crater that's next to it, and I'm going to try to get a picture of that next time I get the camera available because this white stuff runs down the side of a very smooth brown crater. And there's places where you can see it's run out on the floor on the bottom, and it has a very strange appearance. It - it - The white stuff looks like it ran out and then just stopped abruptly. There's no - no toe on it or anything.

126 06 36 Hartsfield: Casper, Houston. About a minute to go for your UV.

126 06 42 Mattingly: Okay. Thank you, sir.

126 07 29 Hartsfield: And, Ken, you don't have to acknowledge, but John and Charlie just got back into the LM, and they're just repressurized.

126 07 44 Mattingly: Okay. I show that we're at the time to do this; however, it looks like we're not up to Descartes yet, and the camera's pointing - along towards Kant.

126 07 59 Hartsfield: Okay. The Flight Plan calls for leading it about two minutes, Ken.

Public Affairs Officer: This is Apollo Control at 126 hours 21 minutes [plan GET, 126:10 actual GET], and we've just had a report - a further report on Ken Mattingly and Casper. Everything continues to go very well. Flight Director Donald Puddy, who is following the actions of the Command and Service Module, said that they have not missed a thing in the Flight Plan. Everything is going very well. At the moment, Mattingly is taking UV photographs of the landing site, Casper passing almost directly over the Descartes site now.

126 10 15 Mattingly: Okay, Hank. I got it done, but I guess I made one mistake there. I didn't get the engines off. I didn't hear any firings during the time that I was taking the pictures, but I didn't get to Free.

126 10 27 Hartsfield: Roger.

126 10 38 Hartsfield: And, Ken, the guys are back inside. I don't know whether you heard me a while ago or not, but EVA-1 was a total success. They had a seven hour and 11 minute EVA.

126 10 49 Mattingly: Outstanding. Did they have anything particularly significant to say or...

126 11 01 Hartsfield: I didn't catch all of it, let me ask...

126 11 02 Mattingly: Did they have any surprises in the things they saw or that they didn't expect?

126 11 30 Hartsfield: I guess the big thing, Ken, was they found all breccia. They found only one rock that possibly might be igneous.

126 11 40 Mattingly: Is that right? (Laughter)

126 11 45 Hartsfield: Yeah. I guess the guys are a little bit surprised by that.

126 11 46 Mattingly: Well, that ought to- that ought to call for a session with the - (laughter) yeah, yeah (laughter). Well, it's back to the drawing boards or wherever geologists go.

126 12 13 Hartsfield: Hey, Ken. Ron's asking what you were wearing last night when you got cold.

126 12 23 Mattingly: I was just sleeping in my sleeping bag. I mean - All I had to do was get up and put on my - my jacket and trousers. Up to then, just getting in the sleeping bag was almost too hot.

126 12 40 Hartsfield: Roger.

126 12 49 Mattingly: Okay, we're at frame 60 on magazine OO.

126 16 50 Mattingly: Okay. I've got a real good look at the Davy chain now, and they are definitely all rimless. There are some - they run kind of northeast - southwest, and there are a couple of very subtle constructional features that just look like little - little bubbles of material that run north and south. They cross the ch - crater chain, but in fact, when they cross it, it kind of breaks it up. But the - the craters in the chain themselves don't look like they have any rims at all.

126 17 48 Hartsfield: And, Casper; Houston. You're coming up on about 15 seconds to T-stop for the mapping camera.

126 17 57 Mattingly: Okay. Thank you.

Public Affairs Officer: This is Apollo Control at 126 hours 28 minutes [plan GET, 126:17 actual GET]. Young and Duke will spend about an hour and a half to two hours getting the LM cabin cleaned up, stowed, and getting their suits off. We'll then debrief them on the EVA, and let them get something to eat, they'll recharge the Portable Life Support System, and we're scheduled to begin an 8 hour rest period for the Lunar Module crew at [a] Ground Elapsed Time of 130 hours. We'd like to update the status in regard to the possibility of a third period of extra vehicular activity. There will be a meeting tonight, of project and management officials to plan details of the second EVA, and to discuss options for a third EVA. Among the topics that will be considered will be the status of Lunar Module consumables - such things as water and electrical power, battery reserves, the status of the network - in particular what Manned Spaceflight Network stations will be available for liftoff and rendezvous at the various times. Also the effect of various lunar stay durations on liftoff times and return trajectories. Also, of importance will be the - what the options would mean in terms of crew workload. A final decision on whether or not to go ahead with a third EVA may not be made until after the second EVA when we will evaluate the accomplishments of the first two EVAs and also the condition of the crew. And a final decision as far as the third EVA may not be made until after the crew rest period following the second EVA when we'll have an opportunity to make a final determination as to the crew condition and their ability to carry out a third EVA, and then to continue on through the lunar liftoff rendezvous and docking sequence.

126 18 11 Mattingly: And the Mapping Camera is Off.

126 19 13 Hartsfield: And, Ken, have you done the rest of the things there?

126 19 19 Mattingly: I'm coming up to it now. Thank you. Going to Standby, and Image Motion, Off, and it's barber pole - and gray. And here comes the gamma ray shield. Shield is Off now.

126 19 55 Hartsfield: And if you'll give us Accept, we'll up-link a state vector.

126 20 02 Mattingly: Okay, you've got her.

126 21 59 Hartsfield: Casper, the computer's yours.

126 22 04 Mattingly: Okay. Thank you.

126 22 48 Mattingly: Okay, and I'm taking magazine XX out of the 35, and I'm going after magazine ZZ.

126 22 58 Hartsfield: Okay.

126 30 18 Mattingly: Hank, you know I mentioned to you yesterday that old GDC was really hanging in there, and I think it's drifted less today than it has before.

126 30 32 Hartsfield: Hey, that's just fantastic. I never saw one in the simulator like that.

126 30 40 Mattingly: Oh, we - we asked them to put in big drifts so we wouldn't get in the habit of trusting it, you know, without keeping in mind you got to keep dressing it up. And, so help me, this thing - I'm gonna run you a drift check here, when I get through with this maneuver. But I'll bet you that it's, you know, one degree an hour in roll is about it.

126 31 57 Hartsfield: Casper, Houston. Can you terminate the Bat B charge ?

126 32 03 Mattingly: Sure can. And it's off.

126 32 08 Hartsfield: Okay, and we want to get Gamma Ray shield, on.

126 32 16 Mattingly: Okay, the Gamma Ray shield is coming on, now.

126 39 32 Hartsfield: Casper, Omni Delta.

126 39 38 Mattingly: Oh, you're already on Omni Delta.

126 39 40 Hartsfield: Boy, it sure sounds bad.

126 39 45 Mattingly: Yeah, it does. Anything else go with that, Hank?

126 39 54 Hartsfield: Say again.

126 39 58 Mattingly: Does anything else go with that?

126 40 47 Mattingly: Hank, do you read me at all?

126 40 48 Hartsfield: Roger, Ken; I'm reading you.

126 40 54 Mattingly: Oh, okay. I just wondered. I got a lot of noise, but I hear you loud and clear whenever you talk.

126 40 58 Hartsfield: Roger. Same here.

126 41 14 Mattingly: Any word on how the LM consumables are looking, or is it too soon to tell?

126 41 21 Hartsfield: I haven't heard anything yet, Ken.

126 41 29 Mattingly: Have they said anything about which - if they only run one more EVA, which one they'll run?

126 41 38 Hartsfield: Stand by.

126 42 14 Hartsfield: Ken, they're still looking at whether we've got enough consumables or not. However, tomorrow they're going to proceed with EVA-2.

126 42 25 Mattingly: Okay.

126 44 20 Hartsfield: Casper, Houston. We've got just a few minutes here to LOS, and everything looks good from this end. We'll probably do a shift change in here while - during LOS. Stu will come on, and I'll see you in the morning. A last reminder to configure your DSE at 127:01.

126 44 43 Mattingly: Okay. At 127:01, I get a High Bit Rate and Command Reset. Okay, thanks a lot, Hank, you've been a big help today. See you in the morning.

126 44 52 Hartsfield: Okay.

[Loss of Signal at about 124 46]

Public Affairs Officer: This is Apollo Control at 126 hours, 58 minutes [plan GET, 126:47 actual GET]. We're in the process of handing over our shift here is Mission Control; Flight Director Jerry Griffin [is] coming on to replace Flight Director Pete Frank. And the [LM] spacecraft communicator at the present time is Astronaut Ed Mitchell. We're estimating that the change of shift briefing will occur at about 8:00 or perhaps a little bit later.

126 49 29 Mattingly (CM onboard): Okay. That now, we got to take a -

[Break in CM transcript until 127:04]

127 04 36 Mattingly (CM onboard): Okay. Who stole the window shade? Lock all the doors until I find the window shade. Nobody leaves the room.

127 13 29 Mattingly (CM onboard): Okay, the boom's going out on the Gamma Ray. It'll be for 14 seconds.

127 13 41 Mattingly (CM onboard): And it's Off.

127 14 20 Mattingly (CM onboard): Okay, Image Motion is coming On -

127 14 22 Mattingly (CM onboard): Mark. Barber pole.

127 14 28 Mattingly (CM onboard): Now it's gray. Laser Altimeter is On -

127 14 36 Mattingly (CM onboard): Mark.

127 15 58 Mattingly (CM onboard): Okay. Mapping Camera is coming On -

127 16 12 Mattingly (CM onboard): Mark. And this one is supposed to be at barber pole plus 4.

127 16 31 Mattingly (CM onboard): Barber pole, l, 2, 3, 4.

127 16 49 Mattingly (CM onboard): Okay, Manual and Wide, Pan and Zero. High gain.

127 17 22 Mattingly (CM onboard): That's [garble] out there on that boom. Let's see where it is.

127 18 16 Mattingly (CM onboard): Okay, the Gamma is out 15 inches.

127 18 35 Mattingly (CM onboard): Okay, and I've got an orbital science at Kapteyn - 127: 50.

127 19 21 Mattingly (CM onboard): [Garble] hold that right there [garble] map [garble] over here [garble] worry about Kapteyn.

127 20 12 Mattingly (CM onboard): [Garble] Kapteyn.

127 20 23 Mattingly (CM onboard): [Garble] right now - 32.

127 21 31 Mattingly (CM onboard): Now look at that - my imagination. I don't think so.

127 22 00 Mattingly (CM onboard): Coming over Chaplygin.

127 24 06 Mattingly (CM onboard): Oh, there's good old Mendeleev again. Schuster - and on Schuster, it - all this stuff just looks like it's been plastered over.

127 24 59 Mattingly (CM onboard): Oh, look at that pretty crater chain. Cuts right through there [garble]. Hey, that looks like that there's lava flows here.

[Lunar Rev 28 begins at 127:25]

127 27 12 Mattingly (CM onboard): Down along the margin in the bottom of Mendeleev, there's - some of the dark materials that are out there. They've all got this little textured slope to them. Really, I think that's about all you can say for it is that it's just textured. It's very strange.

127 27 51 Mattingly (CM onboard): You don't want to call them flow fronts, and yet there is definitely a margin. There are two different - distinctly different units, but whether they're just - part of it's consolidated and part of it's talus, it's very hard to discern. The central peaks and all these things - everything back here's been mantled, it looks like. Even the things that are relatively sharp. There are sharp features back here.

127 28 38 Mattingly (CM onboard): Quite a few very sharp things, as sharp as things in the front. Everything in here has just been mantled.

127 29 39 Mattingly (CM onboard): I'd say that there's nowhere near the number of craters out here that there is on the front side on the - There are nowhere near as many sharp ones. There's an awful lot of - constructional things and there's some tremendous blocks up ar - around this one back here. Just blocks all over the place, around and on the outside, and then this big mud pie that just oozes up inside. It looks like it might even carry through on the flanks.

127 30 35 Mattingly (CM onboard): Must be coming up on King. Sure enough.

127 30 45 Mattingly (CM onboard): Gonna be hard pressed to see very much of Kapteyn on this pass. No, we weren't talking about Abul Wafa either. It's north of Abul Wafa. It's more like in the area - I got to get me a new set of coordinates. And there's - that ought to be Chaplygin. No, what's the name of that thing? Lohse. How about that.

127 31 59 Mattingly (CM onboard): Well, Lohse has an awful lot of boulders around it, just an awful lot of big blocks - on the flanks - plus a lot of - an awful lot of big boulders inside.

127 32 31 Mattingly (CM onboard): The boulders around the flanks are very impressive. They've got very short - if that's an ejecta blanket, it sure is a short range thing. It's got big clods all around the outside. All up and down inside, there's big clods on top of those things. And it looks like the ground is just slumping in big concentric rings. I wish I could get closer to see that piece up there. That's really interesting. My first chance to see some - a piece of crater forming - going out. Apparently, that place just bends and goes right down in there.

127 34 46 Mattingly (CM onboard): Now there's something that sure looks like leach, swirls, what have you. I'm going to take a picture of that guy. It's - let's see, it's now 127:36, I mean, 11 -Where did my camera go? You go at the time I want to take a picture. Come back here, you. In there with the urine bags. What a place for a camera. 500 - Okay, that's frame 38 on magazine Victor. That's taken looking straight down at a place about - well, let's see - Could that be Abul Wafa there, maybe? [garble] find King. I've just passed King, so it must be -

[Acquisition of Signal at 127:36.]

127 36 45 Roosa: Casper, Houston; standing by.

127 36 54 Mattingly: Roger, Stu. Be with you in just a minute, soon as I find out where I am here. I just took a picture; now I don't know how to tell you where I am. It's really bad when you switch from window to window, trying to figure out where some of these things go to.

127 37 54 Mattingly: Okay. Stu, I'm - I don't - I don't think we've got any - any open items.

127 38 06 Roosa: No, we're - we're pretty clean here. I've got a correction for you as you look at the landing site again, but that can wait until after you finish with Kapteyn here and so forth.

127 38 20 Mattingly: Okay. That's probably a good idea. I've got a pretty low saturation level.- I've - I got a good look at the - both the Saxd [?] and at your bright ray on Chaplygin on this last pass. And I really don't know what to make of all that. That - you're right about the location of that bright ray on Chaplygin. So I guess you win on that one. The thing that I thought was rather intriguing about that was that there are all kinds of big blocks all around the outside of it, and all around on the inside too. And yet it looks like a great big mud pie. I really don't - don't know how to put it all together. It certainly doesn't have the characteristics of - any kind of a violently explosive thing. And I get to looking around at some of these other craters, and I was speculating on whether or not they're - the fact that everything is soft back here on the back side and how that compares to the front side. You know I guess one of the things that strikes me is that everything back here really isn't that soft. It - It's soft in that the colors are - are very uniform and the...

127 39 44 Roosa: Could I interrupt you, Ken?

127 39 47 Mattingly: ...and the - you don't have deep crevices. Go ahead.

127 39 50 Roosa: Okay. You're probably just about in the area here for - to look at Kapteyn, you're V6.

127 39 59 Mattingly: Oh, thank you.

127 40 25 Mattingly: Looks to me like I ought to be quite a ways from Kapteyn.

127 40 28 Roosa: Okay. You are, it's just...

127 40 30 Mattingly: I'm just now coming up...

127 40 31 Roosa: ...this is.

127 40 32 Mattingly: ...on Smythii.

127 40 33 Roosa: Roger. I - I agree with that. This - this is the time you've got listed as to start your preparation and, yeah, you've...

127 40 40 Mattingly: Okay.

127 40 41 Roosa: You've probably got...

127 40 42 Mattingly: Thank you.

127 40 43 Roosa: ...about five or six minutes.

127 40 47 Mattingly: Yeah, I tell you. All those hours we spent looking over these things so you can recognize them without the map have sure been a big help. You can just look out there and generally know about where you are. Except there's places here on the back side where I still have to get my map out in order to sort out what I'm looking at. It does look an awful lot alike in places, yet you look down in it and I think the only reason that everything here looks alike is it's just like everything back here has been dusted with something.

127 41 20 Roosa: Yeah, I...

127 41 21 Mattingly: Because there's still these; there are sharp features. You know there's rims of craters that are sharp and there are steep sides. And there's all kinds of things that don't go along with the concept of being weathered down and old. And with the binoculars - they really bring in an awful lot of things, and you see that there are - there's an absence of little tiny craters. And all - there's overabundance it seems like of the great big guys. On the small scale, you don't see nearly as much. It's just like everything back here had been dusted over not so long ago on a geologic scale. You do see flow fronts and all kinds of things back in there just like you do in the maria surfaces and you see little - haven't seen any ridges to speak of. But I've seen an awful lot of fro - flow fronts that run up and down things. And I don't see an awful lot of the elongate kind of terrain that we've characterized with Descartes. Except way back near the 180 point, and the rest of it is almost unique to the backside, I think.

127 42 40 Roosa: Okay. That sounds real great, Ken. Hey, that bright ray on Chaplygin, what did you make of that dark stuff. Does that really drape over the side?

127 42 52 Mattingly: Well, I haven't been to the place where I could see that and look down on it. But during our first rev - after DO - no - yeah. The first rev after DOI, we passed right abeam of that guy and I got you a nice oblique shot of it from what looked like it was right next door. And it's got very sharp rims on it. It's - it 's got dark material around it, on the inside and the outside, and I guess it's draped. But it looked to me like it was a, you know, a very sharp feature. It had all the appearances of a - what you would think of as a fresh strata volcano would look like as a little bitty guy. And the white stuff looks like snow on it.

127 43 38 Roosa: Very good, and thanks for taking my picture.

127 43 45 Mattingly: That was pretty spectacular, because we were about, only about 30 miles high at the time, and that makes - really did make it look like it was right next door.

127 44 14 Mattingly: I did find one place up in, I think it's in Guyot where I'd swear there's a hole in the side of the crater wall and stuff is running out of it - dark material. And maybe I'm all out to lunch on that, I - but it sure looks that way. And I got some pictures of that. But that whole area to the north and west of King has really got a lot of stuff in it that I'd never seen before, and I suspect that's because King's been so interesting, we hadn't looked at the pictures around it. And I - I've remarked several times about the swirls and things that I see back there and that they had some topographic relief yesterday, Today, I really can't tell whether they do or not, and I think that's due to the changing Sun angles. And Farouk made some comment about that being near Abul Wafa, and I'm really talking about an area that's north of Abul Wafa by about five degrees. It's about - about if you draw a line between Firsov and King, Abul Wafa's about as far south of that line as the area I'm talking about is north of it.

127 45 30 Roosa: Okay.

127 45 49 Mattingly: And we're coming up now on old Kastner.

127 46 11 Roosa: Casper over Kastner; that almost sounds poetic, Ken.

127 46 17 Mattingly: (Laughter) Right. I'd sing to you, too; but, well, that might be better than my music, you never know.

127 46 27 Roosa: No, if you can't play me "Riding Old Paint," why, I don't want you singing either.

127 46 36 Mattingly: Okay. Well, have it your own way. You don't know what you're missing.

127 47 Oh Mattingly: Boy, we sure picked a lousy attitude for this observation. (Laughter)...

127 47 10 Roosa: [Garble] Ken.

127 47 11 Mattingly: I don't care what they say, hanging upside down - I don't - I don't do so well. And we're sitting here at an awfully high Sun angle, which makes the features very difficult to identify. But I have Ansgarius located, and there's La Perouse. And old La Perouse looks like a - looks like an old Langrenus with a big star in the center of it.

127 50 04 Mattingly: Boy, I'll tell you, you can hardly make out much of anything about Kapteyn, due to this high Sun.

127 51 29 Mattingly: No, I'm afraid I won't be able to say anything about Kapteyn. We're past it now and at this high Sun, you can't make out much of anything. He's a little too far from the ground track in this attitude to comfortably do when you're scrunched up in the corner of the window. And I guess I'm looking almost straight south now. Boy, there's one set of peaks that stick up down there that are really huge. Stick up over the horizon, make it look like the Andes.

127 52 08 Roosa: Okay. We copy that, Ken.

127 52 54 Roosa: Go, Flight [?]

127 52 58 Mattingly: Say again, please.

127 57 13 Roosa: Okay, Ken, this is just sort of a general question about the terraces in Stone Mountain and if you get a chance, why, look down around the south end of that EVA-2 traverse, down around Station 5, and just might look in the area and see if you can give any hints on how definite those terraces are. They're going to try to establish at Station 5 on the first terrace. And if you think it looks definite enough, why, that's a no-sweat operation or how easy it looks to determine between first, second terrace, and so forth.

127 57 58 Mattingly: Okay. I kind of looked for that and - I - let me take another look specifically at that. It appeared to me that - probably on the ground you wouldn't know you're on the first terrace. But let me take another look at that - I'll check it out this time. And again - we're only guessing what - you know, trying to guess what it would look like if you indeed were that far down.

127 58 28 Roosa: Roger. And this is sort of a no-sweat type question, Ken, so don't - don't worry too much about it, we just like to have you lamp that area again.

127 58 41 Mattingly: Okay.

127 58 50 Mattingly: Did they get a chance to drive the Rover around very much?

127 58 58 Roosa: Ah - yeah. The Rover went real well. I think they had - got pretty much everything in on the first EVA that they'd planned on.

127 59 12 Mattingly: I'll bet those are two tired guys by now, then.

127 59 21 Roosa: Yes. I expect they are, Ken. They got in 56 pounds of rocks today.

127 59 28 Mattingly: (Laughter) Oh - very good. We've got a place for them.

128 00 21 Mattingly: Did Hank tell you we got a couple of little Casperellos flying along with us?

128 00 28 Roosa: No. No, I guess I don't get that one, Ken.

128 00 34 Mattingly: (Laughter) Well, the first time I noticed it was - I guess it was yesterday evening. I think maybe you were on when I saw the little particles flying along with me - right after - after the ground goes into darkness and you're still in daylight, then you can see all these things against the ground. And they all flicker and speckle and they come tumbling along. And this morning we came out, and I guess we were going minus-X, and I looked out the center hatch and here was this little thing just flying formation on me and I - in the dark, I couldn't tell how far back it was, but it was just sitting there and apparently it was tumbling because it was giving off little flashes in and out. And it didn't look like it was opening or closing or anything else, it was just sort of sitting there.

128 01 27 Roosa: Well, that sounds like a real live Casper to me, Ken.

128 01 35 Mattingly: Well, it's so small it's probably a Casperello.

128 01 38 Roosa: (Laughter) All right.

128 04 43 Mattingly: I'm looking at the - down at the central peak at Theophilus. And it has all of that same crosshatched appearance on the shadowed side that we saw on Silver Spur and Hadley.

128 05 01 Roosa: Okay.

128 05 48 Mattingly: Okay. I put Power on the Pan Camera and the barber pole's back to gray.

128 05 57 Roosa: Okay. I copy that. Standby, Stereo, and Power, and you're a minute and 20 seconds from T-start.

128 06 07 Mattingly: Okay. Passing over Kant.

128 06 14 Mattingly: I'll tell you, the old landing site stands out now. You couldn't miss that for anything. And it wasn't that obvious at the lower Sun. Unfortunately, I'm a little too far south to be able to give you a good answer on those terraces, but I'll give a hack at it.

128 06 34 Roosa: Okay. Copy that. And you're 45 seconds from T-start.

128 06 41 Mattingly: Okay. And I'm just over here standing by.

128 07 12 Roosa: You're ten seconds from T-start.

128 07 23 Roosa: And she ought to be -

128 07 24 Mattingly: Operate.

128 07 25 Roosa: Okay.

128 07 26 Mattingly: I have a barber pole with gray.

128 07 32 Roosa: Okay. And you've got an Image Motion. You want barber pole.

128 07 40 Mattingly: Beg your pardon?

128 07 42 Roosa: Okay, You want to take your Image Motion to barber pole.

128 07 44 Mattingly: Do you want me to go back to the observation?

128 07 46 Roosa: Okay.

128 07 48 Mattingly: Does that take priority over the observation?

128 07 50 Roosa: No.

128 07 51 Mattingly: Yes or no.

128 07 53 Roosa: No.

128 08 04 Mattingly: Yes. I think that they will be able to recognize that they're on the first terrace.

128 08 15 Mattingly: Oh, I don't know, over by Cinco they're not that obvious. They are further around to the west, but I'm not sure that recognize the first terrace. They might recognize Cinco.

128 08 30 Roosa: Okay.

128 08 46 Mattingly: Okay. I'll get the Image Motion now.

128 08 50 Roosa: Okay. You're ten seconds to a - T-stop.

128 08 53 Mattingly: Stand by.

128 08 57 Mattingly: Roger. Standing by for T-stop.

128 09 03 Mattingly: Okay. Stand by. And we're barber pole on the Image Motion.

128 09 15 Roosa: Okay.

128 09 21 Mattingly: Thank you, sir.

128 09 23 Roosa: Roger.

128 09 31 Roosa: Okay. And the lens is stowed; you can go PC off, Ken.

128 09 39 Mattingly: Okay. Pan Camera power is off.

128 09 44 Roosa: Got you.

128 09 48 Mattingly: Boy, these - these -

128 09 49 Roosa: And we'd like High Gain, Auto, Ken.

128 09 51 Mattingly: You'd swear that - Sure thing. You'd swear that you ought to be able to see the LM with these binoculars. I think if you knew where to look - exactly, you might be able to see it. But you couldn't hold anything in your hand any more sensitive. I'll tell you, the Cinco craters stand out very nicely and the Crest crater is very obvious from up here. But it looks like the path you've drawn that goes from Station 5 to 6 and 4 - that path looks to me like it runs down sort of a tongue of material. That you can drive up it - and that those white lines we've got drawn on Chart 9 Charlie - really aren't obvious at all. When you get over around more in the South Ray side you start to see these things, but it's just not at all obvious that they're going to see anything - down that path.

128 10 49 Roosa: Okay.

128 10 50 Mattingly: They got a good system; they should be able to find Cinco.

128 11 10 Roosa: Okay. Now I heard earlier that you could see Double Spot with binocs. Does that sound right, Ken?

128 11 18 Mattingly: That's affirmative.

128 11 20 Roosa: Okay.

128 11 21 Mattingly: I'll tell you, it's - they're really neat.

128 11 27 Roosa: Okay. And I'm sure that they passed on to you that the LM should be 200 meters northwest of Double Spot.

128 11 35 Mattingly: Yeah. I just - Every time I've gone over, I've been looking for something that I thought was probably more worthwhile than just the gee whiz of my saying I saw the LM.

128 11 44 Roosa: Yeah. I agree with that priority.

128 11 52 Mattingly: I wish they - I really wish we'd gotten into North Ray - maybe they'll still get a chance, because it looks to me like a - that's a pretty interesting path up there. Interesting from the fact that it looks like it's constructional - the ridge that runs up to North Ray crater.

128 12 45 Mattingly: You know that central peak that we've all been looking at in Albategnius and thinking it was so big? It can't be so terribly big because - at least, it can't be terribly tall because it is just now sticking its nose up in the daylight. And the terminator passed here a long time ago.

128 13 08 Roosa: Okay. Good observation, Ken.

128 13 23 Mattingly: Boy, that straight wall really shows up from here. Just so they know that's a pretty interesting thing. It's interesting enough to rate number 36.

128 13 45 Roosa: Okay. And I guess you're rocking on, ready for your terminator photos here of Guericke.

128 13 52 Mattingly: Yes. I'm sitting waiting to get a little closer to them. I got Lassell, Albategnius B all lined up and boresighted.

128 14 02 Roosa: Golly.

128 14 08 Mattingly: There's a lot more of these sharp depressions. I don't know whether to call them grabens or what, but these - these little sharp lines that run across - there's a lot more of them than I'd guessed you'd find.

128 14 30 Roosa: I suspect that they are showing...

128 14 32 Mattingly: And there's Lassell C.

128 14 33 Roosa: ...up now in the low Sun angle?

128 14 37 Mattingly: Yes They really stand out in low Sun. One of the things - I'm looking at one right here that's next to Lassell C. I'm going to start my strip and talk a little while I'm doing it. And that's at a - one that's just to the north of Lassell C in that highlands clump that's next to it there. And - it looks like in the low Sun, on the outside of it, you see all kinds of craters. You know, the typical low Sun angle pictures of crater patterns. Oh, down in the floor of this thing it's just as smooth as a whistle. Like someone had drug a - something heavy through there and just made a deep impression.

128 15 31 Roosa: Okay. Got you.

128 17 01 Mattingly: You know it's not real obvious whether I see the end point of that strip. The thing we've drawn I think I see - but it looks like an awful lot of other craters in this low Sun. We'll have to wait until a higher Sun to see if it really is different.

128 17 18 Roosa: Okay.

128 17 29 Mattingly: Okay. Magazine SS is now reading 47.

128 17 37 Roosa: Forty-seven on SS.

128 18 33 Mattingly: Okay. It's time for a little Gamma Ray Deploy.

128 18 38 Roosa: Roger.

128 18 42 Mattingly: Mark. It's coming out.

128 18 45 Roosa: Okay. We got your Mark.

128 18 54 Mattingly: Okay. I'm - I'll turn it off. Well - it looked to me like in 12 seconds and I still had a barber pole. Let's say I retract it and try again.

128 19 10 Mattingly: Oh, wait a minute. That thing was already 15 inches out. That's what it is. Okay.

128 19 18 Roosa: All right.

128 19 19 Mattingly: Am I correct?

128 19 20 Roosa: That's correct, Ken.

128 19 23 Mattingly: Okay. I just - my tape in this dim light, I had the lights turned down, I didn't see the tape until it was already out.

128 19 39 Mattingly: That sort of makes it Sim Bay 5 - Casper 0.

128 20 07 Roosa: And, Ken. Before you put your Flight Plan away there to exercise, I'd like to remind you of something here.

128 20 17 Mattingly: All righty. Go ahead.

128 20 18 Roosa: Okay. If you want to turn over to 129:25, there abouts.

128 20 30 Mattingly: Got it.

128 20 31 Roosa: Okay. You'll see the - the write-in change there that may look funny to you, but we really want those steps done. And what we're doing is turning the Image Motion Off for that pass and that's why it's a little out of the ordinary.

128 20 51 Mattingly: Roger. I understand. This is - the purpose of this was so that they can get a calibration on just how much motion comes with that. They can tell where the zero point and smear comes on the film. Is that correct? That's just a gee-whiz thing.

128 21 07 Roosa: Okay, Ken.

128 21 11 Mattingly: The information is gee whiz to me; I guess it's important to the people who have to make maps out of the stuff.

128 21 18 Roosa: Roger.

128 21 28 Mattingly: Okay. And anything else before I do myself in?

128 21 33 Roosa: No. About the only other thing I've got, Ken, is your - your temperature for the sleep period. I guess there are a couple of things we could do, like we could leave some power on to increase the load, or we could try to move the Temp In valve or we could - I guess you don't have any -

128 21 57 Mattingly: I'm sorry. I wasn't meaning to be complaining. I was merely wanting to record a remark that there was a significant change in the cabin. Sometime starting yesterday, sometime, and I don't know when - compared to what we had had. And that was not something that I was asking for relief on. It's very comfortable.

128 22 23 Roosa: Okay. Very good.

128 22 24 Mattingly: Sorry if somebody put any time on it.

128 22 27 Roosa: No. It's no problem and...

128 22 28 Mattingly: No, I just...

128 22 29 Roosa: ...was just glad you're happy.

128 22 30 Mattingly: I thought it was kind of interesting. Yeah, I thought it was kind of interesting and I don't know whether it's because I'm in a 60-mile orbit or whether it's because there is only one guy in here adding heat to the atmosphere. I guess we'll decide that when John and Charlie climb in.

128 22 53 Roosa: One explanation is that you lost two roommates; but, also, my cabin ran what I thought a little chilly, and do you notice it getting a - gets a little clammy going through dark pass?

128 23 10 Mattingly: Well, it's not doing so bad today. Yesterday, in the dark passes, all the windows were fogging up and every time I'd breath I had to go wipe the window off. Looked like I was standing in front of a pet store. And I haven't had that trouble - today at all. And it looks like it's slowly drying itself out. We had an awful lot of condensation in here - showed up during - after LOI. All down in the suit bay was a great big puddle of water, and we had not been aware of any collection of water anywhere before that. But it had obviously been there. It didn't come out of the tunnel, but it just sort of finally all condensed. And any time you go in to clean out the suit circuit return screen, why, down in the bottom of that compartment you can see that there's a - there's condensation on some of the lines and there's a little moisture in the bottom of the compartment.

128 24 14 Roosa: Okay. We got those. And I'll not talk to you for a while here. You can have at it.

128 24 24 Mattingly: Okay. As a courtesy, I'll turn Vox off too.

128 24 28 Roosa: Okay.

128 27 28 Mattingly: Hey, Stu.

128 27 30 Roosa: Go ahead.

128 27 35 Mattingly: Do you folks have any - if you don't have anything more to pass up on this pass, I'll set my alarm clock here to remind me just before LOS, but I'd kind of like to take my comm carrier off during the exercise period if that wouldn't bother anybody.

128 27 55 Roosa: No. That's - that's fine with us.

128 28 05 Mattingly: Okay. I've got my tone booster hooked up. And if you want me, send a crew alert and I'll come talk to you.

128 28 10 Roosa: Okay. We can handle that. And looks like we have nothing else. And if you come up before LOS, fine; if not, we'll see you around.

128 28 22 Mattingly: Okay. See you in a little bit.

128 28 23 Roosa: Okay. And if I miss you at LOS, I do want to remind you about - you've got to configure the DSE on this pass.

128 28 36 Mattingly: Roger. I've got my kitchen clock set for that.

128 28 38 Roosa: Okay.

[Loss of Signal at about 128:44.]

129 02 34 Mattingly (CM onboard): (Humming - "Got To Travel On")

129 04 16 Mattingly (CM onboard): Boy, is that water good. Umh. That's really super. That's as good as a martini. Almost.

129 05 01 Mattingly (CM onboard): Oh, hey. There's something I can do. I'll be a regular little pig. If you've seen one pig, you've seen them all.

129 06 30 Noise (CM onboard): (Music - "Pink Panther Theme")

129 07 06 Mattingly (CM onboard): (Humming)

129 08 43 Mattingly (CM onboard): (Humming; snapping fingers)

129 11 29 Mattingly (CM onboard): (Humming)

129 12 08 Mattingly (CM onboard): Okay, Mapping Camera to Off [garble]. Thirty seconds, go back On.

129 12 34 Mattingly (CM onboard): Asked them not to write two things on the same line.

129 13 08 Mattingly (CM onboard): There's barber pole end 1, 2, 3, 4. Comes Off. Now we [garble] 30 seconds.

129 13 32 Mattingly (CM onboard): (Humming)

129 13 51 Mattingly (CM onboard): Okay, now I'm on the Standby. Image Motion comes Off.

129 14 03 Mattingly (CM onboard): It's Off, and we're going back to fine on the camera.

129 14 16 Mattingly (CM onboard): Okay, Pink Panther, you'll have to wait.

129 14 37 Mattingly (CM onboard): Let's see. Set the [garble] Manual and Wide, plus ten and zero. Get my binoculars, my camera, trusty long magazine [garble]. No, I haven't got that many.

129 15 45 Mattingly (CM onboard): A fourth of the frames to go. Adjust [garble]

129 16 08 Mattingly (CM onboard): Okay, I guess it'd be about 5.6 and a 1/125 coming here.

129 16 29 Mattingly (CM onboard): Well, for about six or seven minutes - Well, here we go again. And this is Mandel'shtam I'm coming up over. I'm starting to recognize these little guys, end let's see if we can get back down into that area that was interesting in the crater floor. Well, start [garble]. Well, this isn't a good time to look at that; it's a good time to look at the - at the subtle characteristics of this highlands material out here. What are the general characteristics of the highlands as seen [garble] the floor? Well, in Mandel'shtam around this central crater, the center one, it looks to me like there are at least two different types of material. There is the type of material that surrounds it that looks very, very hummocky and all filled with lots of - of craters, but they're all rounded craters, no sharp rims. I guess that means they're all rimless, really. And outside of that is an area with a - with a lower concentration of large craters - and maybe a little higher concentration of small craters. And on one piece of it, it's obvious that there's a flow that demarcates the difference between them.

129 18 17 Mattingly (CM onboard): But there are places where this flow appears to have nice margins, and then there's other places where it gets covered over by things that are not so obvious. The flow front comes out the - it overlaps itself in places, and tucks underneath and disappears, then comes out the other side. And over here a little farther, it looks more like a wrinkle ridge - from the way it stands up.

129 18 57 Mattingly (CM onboard): I'm looking at the central peak in one of the subsidiary craters - far one on Mandel'shtam. And it again shows very nice stratification just like all the other places we've seen on the Moon - stratification which more than likely does not exist, just because it seems to be everywhere. Everywhere you look, you have the impression of - of lineaments. And they're generally in a crosshatched patched pattern. They go in all kinds of directions. Looking down at some very smooth places, there's places in here that are very subtly separated. They're very smooth, and then there are - there are places that are pockmarked, and they look like Cayley. And the parts that look like Cayley look like the same Cayley that you see on the front side. The smoother stuff is lighter, and I'm trying to pick out what it is that makes the difference. I think the difference is what I think looks like Cayley and what doesn't is more than likely just the absence of many sharp small craters in the lighter material.

129 20 52 Mattingly (CM onboard): There are places where it looks like it's been overlain by something, and it has the same appearance as the ray patterns do - the ray structures. And now I'm looking at a real old subdued crater; I'll have to look at my map here to see which one this is. You can just make out the outer basin on it, and I think at low Sun, it'll probably stand out. It's just to the - just to the east of Mandel'shtam - correction, just to the west. Now, there's a faint little interesting feature. I'm looking at a ridge - with its scarp going into downdrop to the - to the east - correction, to the west, between two craters. It comes along, and it becomes a little scarp, and now the scarp completely goes south and drops down to the - to the west. They both lead into a crater. It's - These little features show up all over this area. They look like the things on the mare, except they don't seem to have nearly as much pattern to them. The color of the Moon back here, by the way, is changing now. It now appears to be gray to me rather than - than the brown that we were looking at the first day. That can partly be due to the fact that I'm looking through a different window, which may have different transmissions, and partly it could be caused by the Sun angle changes. I'm just not at all confident, but I know - it's hard - Here again, I can't get any direct Sun on my chart to compare it with, but it has more of a grayish tint now. Well, 17 still lines up, but it looks to me like 19 is a closer match today; 7 is too gray, 8's too gray, 9 is a pretty good match.

129 23 09 Mattingly (CM onboard): Well, I don't have any direct sunlight on my wheel. It may be off at - Let's see if I can get some direct sunlight on it through this other window now. Looks like somewhere around 8; maybe a - 7 or 8. It doesn't match any of these things. It's always off a little bit. Everything you have up here. It's very frustrating. You'd think it ought to agree, but it doesn't. It's like a lot of tests; you can't tell when you're on, you can only tell when you're off. It looks like it might go somewhere between 8 and 9 when I hold the lighting card in the - in the shadow of the spacecraft. It's somewhere between 8 and 9, and I get the impression - I'm gonna try the tans and see how they do. Well, they don't do so badly either; it's 14 - nope, that far off. And the one we picked yesterday was 17. That was in the direct Sun, and that's - I think that makes a difference. I think these colors lose their - some of their vividness when they get in bright sunlight. Okay. We're now coming up - Let's see, time for a camera change to -

129 25 02 Mattingly (CM onboard): 1/250,f/5.6.

[Lunar Rev 29 begins at 129 25.]

129 25 27 Mattingly (CM onboard): And where should I be?

129 25 39 Mattingly (CM onboard): It's kind of frustrating out this window that features the size of Mendeleev at attitudes we're flying just - just aren't good for viewing. When we had that north oblique and the forward oblique, you could really see what you were doing, and it was nice. Here I am coming over Mendeleev, and only because you know where you are in the sky does it become a meaningful thing. I actually prefer looking out of - out of Window 3, even though it isn't looking straight down so much. It's very difficult to tell which way the groundtrack is going at times. I'm now looking at the highlands material to the west of Mendeleev and Hartmann and Green. And one of the first things that you can say is there are no of these elongate kind of craters. Now there are some crater chains, but the elongate things are not there. Everything is generally the same color here. Very, very little color difference, although there's some very light material that you'd call white. But most everything has the appearance of just having been covered over. When I look at it through the binoculars in this area, the - this material is - does not seem to have that many craters and has this - this batched pattern everywhere - on the inside of crater walls, on the flat floors and everywhere I look. It's the same thing down low. There are relatively few bright halo craters. Most of the craters are - even craters that have rims - are indeed rather subdued. They just don't show up very well. Now, there's a nice scarp running - concentric with nothing that I can see. I took a picture of it; you'd never find it on the map. It's just a - it's just an interesting little thing that happens to be down there.

129 28 39 Mattingly (CM onboard): You can see subtle expressions of it running along for a while, then it goes away. Okay. If I look way up to the north, that must be - oh, with that stuff in it. I think one of those beauties up there has got a big splash on the side of it. We're coming up on King and Ostwald. And the terrain around here doesn't look that different. You could really say all this stuff was covered with snow, and that would - that would be a very reasonable explanation for the - for the way it looks.

129 29 35 Mattingly (CM onboard): I think that's exactly what it all looks like.

129 29 46 Mattingly (CM onboard): And the third one; there's King and then one, two, three craters up to the north - It looks to me like this stuff along the - the - the easternmost of these two tails that come north out of King, which is - has the whitest material around here, that - that stuff that runs along a - a topographic rise, looks like a plateau, and then this plateau sort of drops off as it goes over. There's a couple of craters - I just get the general impression that these things drop off as they go along. Everything around King has these same lineations running - right now they're running generally - generally radial to King.

129 30 53 Mattingly (CM onboard): All these black things that are in there - along those little white peaks in the northern end of King - are places where there's boulders and things that are sticking out of the sides - the same as we see in central peaks almost everywhere else, except here there seem more of them along the walls. On the western wall, those just seem to be places where the residual material is hanging out, sticking together consolidated. I think this is all slumping. You can see places where there's a - looks like a piece is pulled out of the side, and there's a lot of slump down below it. Then there's big pieces that have seemingly resisted. Then on the - out on the western rim, there's one of these real white spots, just a different color. The floor, is not that must different in texture, but it's just a real different color. As I look north up along those rays, it doesn't look any different. You don't get any more impression of anything than you do by looking at the photographs we have. Now the thing that I do see as I look to the north-northwest of King is that, going up towards Sir Don [?] Rille, we see a - another large crater here, very subdued, and - all along its walls are these places where it looks like something is draped; and I'm trying to figure out now whether that's slumped down or splashed up. I can see the margin - and I just can't tell which way it's going. Apparently, those are slumps coming down. That seems to fill all of those craters along there, and - and the demarcation without the binoculars makes it look like they're sliding up the sides of - of the craters, and with the binoculars, it looks like maybe they're - coming down the sides. And you see a lot of these very light, bright patches, and you don't see that in the highlands material anywhere else. And now I'm looking at these things that look like exactly swirls. And the material has - from this angle, it looks like nothing but coloration; no other differences whatsoever. Except there are places where I know some of these swirls do indeed have - have topographic expression; I can see that. But then there's other places where it looks like the swirl is just sort of a coloration that's on the surface. The general texture of this material hasn't changed any, the albedo hasn't changed a great deal, but the color has kind of darkened a bit.

129 34 13 Mattingly (CM onboard): There's the old Earth, and why don't I have a signal? In Wide, Manual, High Gain, Power Amps on. . . ,

129 33 05 Roosa: Casper, Houston. Standing by.

129 34 42 Mattingly (CM onboard): There they come. I think they've been sleeping. Come in, Earth.

129 35 24 Mattingly (CM onboard): There we - Oh, well. I almost had a lock on that thing.

129 35 49 Roosa: Okay, Casper; Houston. Standing by.

129 35 57 Mattingly: Hello there.

129 36 00 Roosa: Greetings. You're loud and clear.

129 36 05 Mattingly: Yeah, so are you. Looks like we had a little extra trouble locking up that time.

129 36 21 Roosa: That was - we reacquired with a ground station here. It was a - a switch here, Ken. And there's nothing wrong with the good ship Casper.

129 36 34 Mattingly: Oh, yeah. I was going to chastise you guys for that. I just happened to notice. I was looking out and I noticed that the Earth was quite a ways above the horizon, and I looked down and there wasn't any signal strength. I was - I got to wondering about it. I don't think you guys are sanforized; you're getting smaller.

129 36 59 Roosa: Hey, if you've got a couple of minutes, at your convenience, I'll give you a - a tentative master plan.

129 37 09 Mattingly: Okay. Let me put some of my toys in a nice resting place, and I'll be with you.

129 37 14 Roosa: Okay. This is not a Flight Plan update, Ken. This is just going to be a general summary of what we 're looking at.

129 37 25 Mattingly: Roger.

129 37 40 Mattingly: Let me get this thing set up for the photo pass, and then I'll - I'll be ahead, and then we'll go into that.

129 37 46 Roosa: Roger. It's at your convenience.

129 37 48 Mattingly: Got to switch mags here.

129 39 21 Mattingly: Hey, Stu, I notice that this thing keys an awful lot at any sharp sound in the cockpit. If this is getting annoying, I'll turn the Vox level down.

129 39 30 Roosa: Haven't been hearing a thing right then, Ken.

129 39 35 Mattingly: Okay. Fine.

129 41 50 Mattingly: Okay. All set.

129 41 56 Roosa: Okay. I'll have a few - about three Flight Plan updates for you, and when we get through, when you get a chance. But here's the way it - the Plan is looking. We'll have no PC-2 or shaping burn. We'll do PC-1 about three revs prior to LM lift-off, which according to - which will be about four hours later than the Flight Plan shows. We're showing lift-off of the LM for about 175:44. And in the place of the nominal PC-1 time, we'll be doing the bistatic radar. The - they will have the third EVA. It'll be - they're shooting for about five hours on it. And, of course, the prime objective is - is North Ray. EVA-3 and the rendezvous will be done on the same day, and to hold down the crew time, it'll - that'll make it about an 18-hour day. We'll hold onto the LM through the rest period and jettison the LM the next day. From your standpoint, everything will be fairly nominal, up until about lift-off minus six hours. It'll be pretty close to about what we're showing in the Flight Plan now. Of course, we'll have some updates as they - they work the - the scientific standpoint of it. Oh, and TEI will be approximately a day early.

129 43 46 Mattingly: A day early?

129 43 50 Roosa: That's affirmative.

129 43 54 Mattingly: All right. Any particular reason? I mean - I would - I would have guessed some of the other things, but not that.

129 44 05 Roosa: Ken, well, I guess it's - it goes down into the bit with we've skipped the PC-2. Why, considering the SIM Bay and the objectives left, everything - everybody's going to be happy and decide to ship you out a - around a day early.

129 44 33 Mattingly: Okay. Where's - we're going to launch the satellite from the orbit we're in? Is that the idea?

129 44 45 Roosa: Yeah, it'll - it'll be the orbit after PC-1, and there's no sweat on the lifetime, Ken. They - they're guaranteeing a lifetime of at least a year and looking to have a fairly reasonable perigee after - even after a year, from - from the orbit after PC-1.

129 45 10 Mattingly: Okay.

129 45 30 Roosa: And that's - that's about it. Of course, all the specifics will be coming up to you, and I have three Flight Plan updates just any time you're ready. No sweat.

129 45 46 Mattingly: Okay. I'll go ahead and copy.

129 45 51 Roosa: Okay. The first one will be at 130 hours 31 minutes.

129 45 59 Mattingly: Go ahead.

129 46 03 Roosa: Okay. We want to delete the "Mapping Camera, Retract." And at 130:34 delete the "Mapping Camera/Laser Altimeter Cover, Close."

129 46 19 Mattingly: Okay. Delete the "Mapping Camera Retract," and the "Cover Close."

129 46 24 Roosa: Okay. And at 131:19.

129 46 31 Mattingly: All right.

129 46 33 Roosa: Okay. Your speed on your camera is changed to 1/250.

129 46 47 Mattingly: Okay. That's 1/250.

129 46 50 Roosa: Okay. And just to ease your mind on that other note - Flight Plan note - we're gonna - The mapping camera will be left out during your dump and the sleep period.

129 47 07 Mattingly: Okay.

129 47 12 Roosa: Okay. And 132 hours.

129 47 58 Roosa: And, Ken, I've got one more at 132.

129 48 02 Mattingly: Okay. You - you dropped out there. I didn't get anything in. You just went silent. I didn't hear anything after - Oh, let's see, where's the last thing I got from you? I got the configuration change in the camera and the understanding that the mapping camera was going to be left out all night. And that's all I heard.

129 48 24 Roosa: Oh, okay. It'll also be out during your dump. I just wanted to...

129 48 30 Mattingly: Yeah.

129 48 31 Roosa: ...verify with you that that was true. Okay and...

129 48 32 Mattingly: Yeah, I got that.

129 48 33 Roosa: All righty. And you...

129 48 34 Mattingly: Roger.

129 48 35 Roosa: ...got the shutter speed change at 131:19. And my next change is at 132:00 when you're...

129 48 40 Mattingly: Yes sir.

129 48 41 Roosa: ...when you're ready to copy.

129 48 44 Mattingly: Okay. I'm ready.

129 48 46 Roosa: Okay. We want to add H2 Tanks 1 and 2 Heaters, Auto. H2 Fans 1, 2, 3, Off.

129 49 05 Mattingly: Okay. H2 Tank 1 and 2, Auto, and all three Fans Off at 132 hours.

129 49 11 Roosa: Okay. That's the end of the update.

129 49 42 Roosa: And, Ken, I've got a few questions about the flow of Mandel'shtam when you've a chance you want to talk about it.

129 49 59 Mattingly: Okay. Let's see. I got a few minutes. Why don't we talk right now?

129 50 05 Roosa: Okay. I'll just run through - There are four questions. Why don't I just give them all to you, and then I can go back over them, but we'd like to know in what part of the floor is the flow. We'd like to know how large it is. We'd like to know the direction of flow. All on-the-spot observation of whether or not you think it's a landslide or a lava flow.

129 50 37 Mattingly: Okay. I covered some of that again on this last pass, I guess. Let me - Say those questions again.

129 50 45 Roosa: Okay. In what part...

129 50 46 Mattingly: You [garble] want me to write a few key words down.

129 50 48 Roosa: Okay. In what of the floor is the flow?

129 51 02 Mattingly: Okay.

129 51 04 Roosa: Want to know how large it is.

129 51 21 Mattingly: Okay. Go ahead.

129 51 22 Roosa: Okay'. And what is the direction of flow?

129 51 38 Mattingly: Okay. And your last question was origin?

129 51 41 Roosa: Roger.

129 51 46 Mattingly: Okay. Let me see if I can get - get a map here that I can give you some reference on. The kind of flow that I'm talking about back there is - is sort of like the kind of flow from - that your - that you - see in the mare materials. It's - it's not a big thing [garble] that you can trace back like you can some of these other things we've seen. it's just sort of appears as a flow front. It's not sure where it comes from, and you can see it run down in the craters and around them. And, from that - I made a little more objective analysis of this stuff that you see on this back - this last pass when we came across on what we call the - the Far Side Highlands. And it's my general impression that these - these flows - maybe that - maybe I'm using the wrong term - they look like flows. They have all the characteristics of a flow front, and yet there's places where they go along, and you'll see it with the scarp going down to the east, and then all of a sudden it'll get a little confused and then the scarp will be showing up going to the west. And then you'll see places where - there's one place in Mandel'shtam - I think we have a picture of it - where this - this scarp, that looks like a flow front, curves in an arc to the right, and it's got material that comes from behind it. Then all of a sudden it sort of turns back in underneath itself and then just disappears. And there's - there's no flow front where it disappears underneath. It's - it's just a - it's a very strange thing. We've seen that in several other places. Some were appearances in the photograph that Farouk and I were looking at of Baldenburger [sic]. Now, that's on a much larger scale of course. But it's the same kind of problem, where you see a unit which is obviously overlaying another. And yet it's overlaying itself by one that the original unit happens to overlay. It's like a - a chain where each - each ring overlaps the other one in a closed circle. And it is very confusing from that point. And let me look at my map here and see if I can give you some - some better handles. I think I took some pictures back there to mark it.

129 55 53 Mattingly: Okay, Stu. Looks like the map is no help, and the - the only picture we have onboard that I can talk about - is on - in the visual photo book. It's V1A. And if you look at the ren - you don't - remember Mandel'shtam has the - the big central crater and then two little craters, or it kind of looks like concentric craters with a bull's-eye, and the flows that I was looking at were almost on the - I guess-you can say they're on the northern side of the big crater. And they run down into several of the smaller craters up there. And the general direction was with the flow scarp as I'm calling it. Facing the - facing to the west, it runs into the crater on the northern side. That's - after looking at more and more of this highlands back here, I'm beginning to believe that these are not actually flow fronts at all; they just happen to look like that if you look at them in short sections, but I think there must be some other process that's affecting all this.

129 57 14 Roosa: Okay.

129 57 15 Mattingly: I'm afraid that - that on the specific kind of questions you asked, in this case, I'm - I'm really kind of out to lunch. I - I can't make specific things when you say how large. There - the length of these things that I can trace are the same size as - as the crater that I was - looking at. And I guess that must not be that central one, but one of the adjacent ones - one of the ones on the north. But they're - they're quite long, and they're all over the area. They're in craters; they're outside of them; they're on the floors. You see these things just about everywhere you look back there. They're large, and they're just - it sort of defies my imagination. I see nothing that looks like sources anywhere.

129 58 07 Roosa: Okay. We got that.

129 58 10 Mattingly: I guess that's a - I guess that's a brief summary to say that I really am not as smart as I wish I was.

129 58 18 Roosa: That sounded pretty good to me, Ken. And we'd like High Gain to Auto.

129 58 32 Mattingly: Okay. There's Auto. Now. Gamma Ray, Shield Off. Ah ha. And it's Off.

129 58 52 Roosa: Okay.

129 58 59 Mattingly: And I'm gonna start in on my strip here.

129 59 34 Mattingly: And just for planning purposes, in the future, I - I know we got those templates out, and when we looked at all those templates on the charts, we said, gosh, you know, you must be able to see a lot more from the window. But, photo targets like this one are in the extreme of what you can reach from our windows. I guess they really didn't - they didn't exaggerate those things too much at all. You can see more if you put your face right against it, but by the time you get a camera in there, your field of view that you can control the camera in is greatly reduced.

130 00 15 Roosa: Okay. Is it true of the - of the hatch window also, Ken? You know that's the one we talked about that looks like - you're bound to be able to see more than...

130 00 23 Mattingly: Yeah. It's not as true there, because you have - yeah, you can - you can certainly see more, and you can - you can get around there with a camera a lot better than you can at these sides. You - you run into - You bang your head against R-12, then you push it into the Comm panel, and - there's always something where you want to put your head.

130 00 42 Roosa: Hey. I agree to that. I've been in that same corner with the 500[mm].

130 00 48 Mattingly: (Laughter) Yeah, well one of those folded guys would be very nice.

[By "folded guys", Ken Mattingly is talking about a mirror or catadiotropic type lens that is much shorter than a standard one - especially at large focal lengths such as 500mm and above.]

But even that, I - I - in looking at it, I'm just holding my 250 against the window here, and with the increased diameter, you'd buy a little bit with that folding one, but not a terrible amount because the darn [lens] diameter's gonna bite you. When you look at anything other than perpendicular to this side hatch window, the two window panes are so thick that you can't look very skewed.

130 01 24 Roosa: Okay.

130 02 39 Mattingly: Okay. We've started our photo strip.

130 02 46 Roosa: Okay.

130 07 14 Mattingly: Okay. That's a good place to quit. And that's frame 61 of magazine Bopa Bopa.

130 07 26 Roosa: Okay. Frame 61.

130 07 31 Mattingly: Yes, sir.

130 08 26 Mattingly: And the Image Motion is stepped up the barber pole and back to Off.

130 08 31 Roosa: Okay.

130 10 23 Mattingly: And the Gamma Ray Shield is back on.

130 10 26 Roosa: Okay.

Public Affairs Officer:This is Apollo Control at 130 hours 22 minutes Ground Elapsed Time [130:11 actual GET]. The crew of Orion at the present time preparing for a 8 hour sleep period. Casper [is] now some 34 minutes away from Loss of Signal on the 29th Lunar Revolution. We'll stay up with the crew of Orion until they close out for the night. Capcom for Orion during this shift is Deke Slayton. Stu Roosa meanwhile is talking to Ken Mattingly occasionally, as he runs through his orbital science experiments aboard Casper. At 130 hours 23 minutes, this is Apollo Control.

130 11 30 Mattingly: I tell you, Stu, that Straight Wall really is a hummer out there.

130 11 37 Roosa: Sounds awful beautiful, Ken.

130 11 46 Mattingly: Yeah, with all the things that are on the front side, I'll have to admit that in many respects -- it 's - it 's more interesting. I'm not sure there's any more to be seen or learned here, but it's - there's enough extra variety that it's easy to - to recognize something that's different. You don't have to look so hard to see what's the same. When I look down at the - at the individual sections of material, I look at this Cayley down here, - oh, what am I looking at - Ptolemaeus and Alphonsus, the floors that - that Cayley fill. It looks just on the detail scale as the stuff on the back side does. And the - the rims around the craters like Alphonsus - that material looks just like the stuff on the back side. When you get down to the detail level, it all has the same features. The only thing that I see that's - that's quite a bit different is I don't see any of these rille systems on the back side anywhere.

130 12 58 Roosa: Okay. Maybe we can talk to FIDO and work in something where you can just orbit the front side.

130 13 12 Mattingly: (Laughter) Yeah, I'll get in one of those synchronous kinds.

130 13 44 Mattingly: I'm looking out here now at the area just to west of the south of Lassell E on a little highlands there. And if you go straight south from Lassell, there's a little tip of highlands material that runs out to the west. Then it stops, and if you take from there and draw a line, I would guess it's almost due west. It looks like there's two entirely different materials there. Like you built it out of two fabrics and then put it down. The one to the north is darker than the one to the south. It's - it's split by a very straight line, and there's a - a very distinct difference in the - in the albedo or the shade of gray that the mare has.

130 14 32 Roosa: Okay. - [garble].

130 15 40 Roosa: And, Ken, you're under one minute to Mapping Camera, Off. You got about 45 seconds.

130 15 49 Mattingly: All right, sir. Thank you.

130 16 21 Roosa: And you're ten seconds T-stop.

130 16 27 Mattingly: Thank you. And it's stopped.

130 16 37 Roosa: Roger.

130 18 13 Mattingly: M in Standby.

130 18 18 Roosa: Okay.

130 18 21 Mattingly: And the laser's off [garble].

130 18 23 Mattingly: Mark.

130 18 25 Roosa: Okay.

130 21 36 Mattingly: Okay. The Alpha/X-Ray Cover is coming Closed.

130 21 39 Mattingly: Mark.

130 21 40 Mattingly: Barber pole and gray.

130 21 43 Roosa: Okay.

130 30 36 Roosa: Okay. We've got...

130 30 37 Mattingly: Okay, I guess I'll - I'll torque these, although it seems like a shame.

130 30 41 Roosa: Yeah. We - we see them, and - go ahead and torque them. Boy, that beauty's nice.

130 30 48 Mattingly: Yeah, it really is.

130 31 19 Mattingly: Hey, Stu. No one ever said anything about the - the P23s. Anyone in the back room know how the [garble] came out? What kind of an altitude we ended up with?

130 31 32 Roosa: Yeah, Ken, I've - we've got that. I'd looked at it there a couple of days ago. A little blurb there I'd written in. It said the mark data was real consistent, and I think it was something like 33 kilometers, but I'm - let - let me check that out for you.

130 31 54 Mattingly: Okay, I was just curious. I - I didn't feel like I had as much trouble with that horizon as I anticipated. As far as knowing where I ought to be, my problem was getting the spacecraft there.

130 34 15 Roosa[?]: Ken, I remember your comment here yesterday about the sextant and the telescope really looking swinging. Have you had any change in that at all, and in particular, the - how about the reticule on your - on your sextant? How does that look to you, and how did the lunar surface look through the sextant? These are just all my own personal questions, so don't - don't take much time on them.

130 34 39 Mattingly: All right, Jay. Yes, I - no, as a matter of fact, at one time I looked in there and saw the sextant was really blurred and I thought, "Oh, here we go. just what you'd said." And I got to looking around, and I found that these eyepieces vibrate on there quite badly. And I guess I shouldn't use the word vibrate, then, but they unscrew, and I've got a lot of tape wrapped around them now to keep them on. And they change focus. And I had to refocus the thing. And once I got it focused, it's - if I turn the reticule lights up to full intensity, why, I get a little bit of a smear. But not much at all, and when I look at the images on the ground like in the - tracking - I took a look during the practice tracking period - and, boy, I tell you, that was just as nice. The only problem was, when you're down low and looking through that 28th power, your field of view is so small you wouldn't recognize your own house if you flew over it.

130 35 56 Roosa: Roger. Copy.

130 35 58 Mattingly: I still - I'm still not having as much success - with the telescope as I - as I ought to, and I'm - I'm trying to psych it out. I was going to take a look here a couple of times. I'm not aware of any light in the telescope right now, but you just can't see any stars in there. And I'm wondering if the Earth is enough still that it - it might blank them out. Because they are obviously there when I look out the window. But they become a great deal more obvious once I get on the back side, or in that double umbra. And I thought I'd try to make a note to check that in the telescope on this pass. I know when the LM was on the nose, that really made a big difference, because all I could see was LM.

130 36 49 Roosa: Okay. I...

130 36 50 Mattingly: [Garble] reflection off the LM.

130 36 51 Roosa: Okay, I graded that. You get a very good picture of the LM quad.

130 36 57 Mattingly: Yeah, I can see the quad in [sic - and?] the radar. I can tell you all about them.

130 37 03 Roosa: Roger.

130 37 05 Mattingly: But even in earthshine it was - it was - you could - you could pick out all the features in earthshine. It was really amazing. And was just - just - just beautiful. And last night or whenever it was when we were playing around there, why, if I had had a little more confidence in the depth perception, we could have done our station-keeping without any lights and earthshine. You get - once you leave earthshine, though, you really need that old docking light. And the docking light, much to my surprise, isn't - isn't good for much outside of 500 feet. And, at 500 feet, if you ever lost sight of the target, you probably wouldn't pick it up again. When you get into 300 feet, then - then it holds the target - with sufficient illumination to see things and tell relative motion. I didn't turn all the cockpit lights down too dim, because the LM strobe is such a beauty. And finally we turned the strobe off just to save power and time on it. And we had no problem at all, but the - I had to help the LM guys how bright that thing was in their face, but I had the impression it wasn't so terribly bright.

130 38 31 Roosa: Okay. Thank you.

130 38 36 Mattingly: Got another little piece of amazement here that you'll - you might appreciate. It took me by surprise. I did a - I started out and I checked the GDC drifts when - right after we got on our way. And they were running pretty high; and they were about seven degrees an hour if I remember right. I've got them written down somewhere. I won't look for them now. Maybe it was like six degrees, but they were pretty healthy drifts. And this was some time after I got - I checked one set of BMAGS before TLI and one after. And I did a GDC align at 127 hours. I just did another one; this is 100 and - 130:45. So that's three hours and 45 minutes, and the two are off by two degrees in roll, one degree in pitch, three degrees in yaw. And that's the way this thing's been operating for the last couple of days. And I - I don't know what finally got it to square itself away. At the time the platform went belly-up there, why, they were about 12 degrees apart, and they had been aligned probably no more than a couple of hours before that. And I noticed the following day - I started watching the GDC, and I noticed I didn't have to align it very often. And it just seems like the more it runs, the better it gets.

130 40 05 Roosa: Hey, that sounds jolly good, Ken. I - I had suspected that you've been keeping a rather close eye on the GDC.

130 40 15 Mattingly: (Laughter) Well, I tell you, every time I zero in on the optics, I make about 50 checks of all the switches in here.

130 40 24 Roosa: Roger.

130 40 25 Mattingly: That'll keep your attention.

130 40 26 Roosa: Roger. I suspect that the GDC stays pretty well-aligned, too.

130 40 33 Mattingly: Maybe it knows something that I don't.

130 40 37 Roosa: Roger.

130 40 45 Mattingly: Something else that surprised me, Stu. Maybe you remember. I can see a - a definite horizon for the Moon within a minute or so of AO - LOS. And I - I guess that's the zodiacal light and the solar corona showing up there, but I really didn't anticipate seeing that nice dark disk. And there's a - it's just like seeing the Earth horizon on a dark night. It 's really there.

130 41 29 Roosa: Okay. Thanks, Ken. We got that.

130 41 34 Mattingly: Do you remember seeing that much horizon?

130 41 41 Roosa: No, sure didn't, Ken. But I had - I had very few passes where the orientation was where I could - could see that.

130 41 59 Mattingly: Yeah , I understand.

130 43 54 Roosa: And, Ken, we - re in about a minute and a half to LOS.

130 44 00 Mattingly: Okay.

130 44 02 Roosa: And I want to - to remind you to configure the DSE here on - on this.

130 44 12 Mattingly: Okay. Thank you very much.

130 44 16 Roosa: Jolly good. We'll see you in a little bit.

130 44 21 Mattingly: All righty. Have an extra cup of coffee. And, if you don't drink the stuff, I need some.

130 44 29 Roosa: Okay. I'm not sure I can even drink coffee for you, Ken. How about a cup of chocolate?

130 44 35 Mattingly: (Laughter) Well, we probably both want the same thing right about now.

130 44 43 Roosa: Roger.

[Loss of signal at 130:45]

130 46 22 Mattingly (CM onboard): Okay, waste water dump. The potable is full; the waste is about half full - 40 percent. I think - eight minutes. I'll set the clock for six.

130 47 08 Mattingly (CM onboard): There it goes. Gurgle, gurgle, gurgle.

130 52 04 Mattingly (CM onboard): Ugh. Come open, you son of a gun.

130 52 51 Mattingly (CM onboard): Oh, man. You son of a gun!

130 57 05 Mattingly (CM onboard): Oh, that's explains it.

130 57 16 Mattingly (CM onboard): It's not my imagination. Everything does float up.

130 58 40 Noise (CM onboard): (Music - continuous for approximately 22 minutes)

131 03 11 Mattingly (CM onboard): (Humming)

131 03 30 Mattingly (CM onboard): (Humming)

Public Affairs Officer: This is Apollo Control at 131 hours 21 minutes [plan GET, 131:10 actual GET]. Apparently Duke and Young aboard Orion have in fact gone to bed without making that final call. After getting their ECS system configured for the sleep period the Spacecraft Communicator had been talking to Orion earlier. Deke Slayton has packed up his head set and gone home. Stu Roosa is monitoring Air-Ground [frequency] 1 or Orion and Air-Ground 2 [frequency] Casper for any future conversations. As Casper made the last front side pass during Revolution 29.

131 12 36 Mattingly (CM onboard): (Singing) Ta-ta, ta-tee-tum. Ta-ta-ta-

131 13 59 Mattingly (CM onboard): (Humming)

Public Affairs Officer: This is Apollo Control Control. Apparently that was the final good night [from Young and Duke in the LM]. We had assumed here that they had gone on off to sleep, but apparently not. As Casper made the front side pass on Revolution 29, the orbit measured 54.9 nautical miles by 64.7, 16 minutes before acquisition of signal from [the] Command Module. Casper starting it's 30th lunar orbit. And at 131 hours 26 minutes [ 131:13 actual GET] I'm signing off except for hourly status checks. This is Apollo Control.

131 20 29 Mattingly (CM onboard): Alpha particle Cover coming Open -

131 20 33 Mattingly (CM onboard): Mark. Barber pole and gray.

[Begin Lunar Rev 30 at 131:22.]

131 22 55 Mattingly (CM onboard): It looks like Hiyarama [sic]. It couldn't be there. Hiyarama's way over here. It must be Schuster.

131 28 00 Mattingly (CM onboard): Well, there are, indeed, little particles flying along with us.

131 28 12 Mattingly (CM onboard): That must be Tsiolkovsky over there - the chain that runs down to it.

131 28 44 Mattingly (CM onboard): There's another one of those little particles.

131 31 40 Mattingly (CM onboard): Okay. Looking back to the - the south and east - at the central peaks of King, I would say that they do indeed have dark material and blocks all along the side, that they're equally as jagged as the ones on the other side. That is not a Sun effect. They're not shadows; they're real. Set that on about the - 11 at 250. Take one of that. Okay, frame number 39 on magazine Victor is - Okay - looking back- dark material on there.

131 32 58 Mattingly: Hello there, Stuart.

131 33 00 Roosa: Oh, greetings, Casper.

131 33 16 Mattingly: I just took a - another look at our old friend, King, looking at him this time from the north looking south and west. And, there's no question in my mind now that there's - there definitely some dark material that's on the top of the central peaks, that's on that western side. Before, I couldn't really tell if there was or not. It looked like there was some blocks that might be casting shadows. But, looking back at it, there's something on there that at least changes the albedo and nothing else. And it's not shadow. And I got a picture here on frame Victor that ought to - hopefully will substantiate that.

131 34 02 Roosa: Hey, that sounds...

131 34 03 Mattingly: That white valley...

131 34 04 Roosa: ...jolly good.

131 34 06 Mattingly: [Garble] Mandel'shtam, I took another - took another look at the craters we'd talked about. And, there are two places on there where I think I see these flow scarps that I was talking about. And, one of them is at - let's call it 163 degrees east and about 2½ degrees south. And, you see a little blob that the artist has drawn in there, and that looks like that is part of - of what I'm looking at - that appears to me to be a - kind of like a flow field.

131 34 46 Roosa: Okay. Got that.

131 35 35 Roosa: And, Ken, I notice here this is supposed to be in the middle of your eat period. Are you eating?

131 35 47 Mattingly: Well, as a matter of fact, I just looked and noticed that it was an eat period. I guess I will go and do same. I got all carried away with this being the first time I've had a chance to look to the south.

131 36 07 Roosa: Okay. When we come up down here, in about seven or eight minutes, why, we're showing this - the Pan Camera to have the Power on so we can take a look at it. We want to play a couple of little games with the V/H override switch at that time, to see if we can find one of the positions of that switch that might have a little less effect on our sensor - You know that was - that was a change and we're noticing the sensor has been detecting lower light levels than it should. So, we're going to put the switch to High Altitude for a couple of minutes and then Low Altitude for a couple of minutes, and we'll give you a call on all those.

131 37 03 Mattingly: Okay. Just tell me what you want, and I'll go down here and put my nose in the feed bucket.

131 37 06 Roosa: Okay.

131 37 20 Mattingly: Seems like I ate just a couple of minutes ago.

131 42 17 Roosa: Casper, Houston.

131 42 19 Mattingly: Go ahead.

131 42 21 Roosa: Okay, if you got time there in mixing up your food, we'd like to have the Pan Camera to Standby and the Power on.

131 42 31 Mattingly: Okay. Pan Camera to Standby and Power on. Omm - Om - a - Okay. And Power is on, the talkback is barber pole, and again it 's gray.

131 42 50 Roosa: Okay, and let's go on the V/H override to High Altitude, now, Ken.

131 42 58 Mattingly: Okay. V/H, High Altitude -

131 43 01 Mattingly: Mark.

131 43 04 Roosa: Okay.

Audio File: a16_131_45_33.mp3

131 45 33 Roosa: Okay, Ken, if you'll give us Low Altitude on the V/H override.

131 45 38 Mattingly: Okay, going Low Altitude -

131 45 40 Mattingly: Mark.

131 45 41 Roosa: Okay.

131 47 59 Roosa: Okay, Ken. You can go to Center, Off position on the V/H override, and you can go Auto on the High Gain.

131 48 10 Mattingly: Okay, V/H override is Center, Off and High Gain is in - Auto.

131 48 16 Roosa: Okay.

131 48 28 Roosa: And, Ken. Just for your info, the field geology team are in the final phase of making their plans for EVA-2 tomorrow. So, if you've got any additional comments, why, better make them this - this pass because they'll have to have it all firmed up.

131 48 52 Mattingly: Oh, I think they're smarter than I am.

131 48 59 Roosa: Well, now. Don't get too carried away up there.

131 49 04 Mattingly: (Laughter) No, I would really - I'd really hope they make it to North Ray though. I think that's going to be different than we expected it to be.

131 49 17 Roosa: Roger.

131 50 08 Roosa: Okay, Ken, we are ready for Pan Camera Power to Off at this time.

131 50 16 Mattingly: Okay, Pan Camera Power is coming Off -

131 50 19 Mattingly: Mark.

131 50 20 Roosa: Okay, we got it.

131 51 54 Roosa: Hey, Ken. How did we make out in our discussion on North Ray low altitude there as far as being able to see the - the white albedo or not? Or, were you too far to the south?

131 52 10 Mattingly: Oh, I got ahead. It depends which rev you want to talk about. On - well, I looked at her on the first day, right after DOI, there wasn't any - there was two craters, but no rays. When I went back and looked at him on landing morning, there's a slight ray. But North Ray still doesn't stand out as being the bright guy that South Ray does.

131 52 35 Roosa: Well, it's obvious I was talking about the - the landing day.

131 52 43 Mattingly: (Laughter) I gathered that it would be the case.

131 52 47 Roosa: Yeah, by all means.

131 52 58 Mattingly: Right now I would agree with you on anything, Stu.

131 53 01 Roosa: Yeah, I'll - I'll be quiet...

131 53 02 Mattingly: I'm [garble] here with my...

131 53 04 Roosa: I'll be quiet...

131 53 05 Mattingly: ...potato soup and my - Ah! Ah!

131 53 12 Roosa: Yeah, I ought to - I'll be quiet here and let you concentrate on your eating.

131 53 20 Mattingly: Oh, man. This is gourmet style. I got - I got the Modern Jazz Quartet playing "Porgy and Bess," and I got orange/grapefruit, some of it in the bag, some of it on the bulkheads, potato soup. Man, it's real gourmet style. Even got a Beta candle.

131 53 51 Roosa: Hey, Ken. With all of that, now while ago you talked about some Casperellos - with all that Beta Candle and all that food, you don't have any such thing as a Casperette, do you?

131 54 08 Mattingly: (Laughter) No, I'm afraid I left that at home.

131 54 10 Roosa: (Laughter) All right.

131 54 14 Mattingly: That's about all this place is lacking, though. (Music in background)

Audio File: a16_132_07_14.mp3

132 07 14 Roosa: And, Ken, just another comment to close the loop on you on that P23s - the - like I said before, the marking data was very good, and you came up with an horizon of 33 and loaded is a value of 28. And after massaging all the data decided to not change it since we've shown on the other missions that coming back - the - has a tendency to have a lower horizon. So, looks like we're just swinging with what we got there.

132 07 58 Mattingly: Okay, that's just fine.

132 11 01 Mattingly: Hey, Stu.

132 11 04 Roosa: Yeah, go ahead.

132 11 06 Mattingly: Couldn't pass up a chance to watch the landing site one more time, and so I took a quick break from chow and went and watched it. And had a couple of questions in mind and only got two of them answered. One of them is that counting the - the layers in North and South Ray and South Ray looks different than North in that South Ray shows three distinct light and dark sequences. I suspect they're slumps, but there's at least three bands. North Ray doesn't have any of that sort of thing. It's obvious from this altitude. I took another look for their terraces and the whole area - the thing that we thought looked so distinctly different in the photographs - looked like Stone Mountain and Smoky Mountain were two different things and something came in the middle of it and - it doesn't look that way to me at all today. It looks to me like it's really all - Almost all part of the same material. And I've drawn another little mark on my - on my map. It's just about where you folks said you thought the LM was, except a little farther over to the north. It turns out that there's one little bright speckle there that doesn't look like craters. I don't see anything except the speckle.

132 12 41 Roosa: Okay, I'm - I'm looking there. Now, go straight for north of the - of the LM and a little to the west, there's three small craters there that are covered with what looks like by ray, now. Where are you talking from that?

132 13 41 Roosa: Okay, Ken. Did you fade out, or did you stop talking? How do you read?

132 13 48 Mattingly: Oh, hey. I - I had you off of Vox and I forgot to push the key down, I had gotten so use to it. No, I - I gave you an 80 and about - oh, you were looking in the right area. And, let me see what I can give you for coordinates on that.

132 14 21 Mattingly: How about CB 5 and 80?

132 14 28 Roosa: Okay. We've got CB 5 and 80.

132 14 34 Mattingly: Okay, and you know I'm - I'm not overhead long enough to be sure that that's what I'm looking at, but it looked to me like it had a - a different kind of glint to it.

132 14 38 Roosa: Okay. I'm sure they've got that.

132 14 52 Mattingly: Oh - hey. I've got one.

132 16 06 Mattingly: Well, I missed it. By the time I got the camera, it was gone. But that little - little buildup that we talked that was just to the west of Lassell, I had it spotted, and I was grabbing for the camera, and I couldn't find it again after I got back.

132 16 27 Roosa: Okay. And, Ken, if you want to go Accept we'll uplink the jet monitor load; and, it's your choice whether you want us to initiate it or you want to initiate it.

132 16 46 Mattingly: All right, you guys can do that.

132 16 49 Roosa: Okay, we've got - Copy that.

Audio File: a16_132_16_49.mp3

132 22 19 Roosa: Okay, Ken. The computer is yours. Go to Block, and the EMP is running.

132 22 32 Mattingly: Okay. Thank you very much. You guys are really helpful.

[End of audio.]

132 28 41 Roosa: And, Casper; Houston.

132 28 49 Mattingly: Be with you in a second.

132 29 07 Mattingly: Okay, go ahead, Stu.

132 29 09 Roosa: Okay. We're showing the lower 14 minutes to LOS; but, we're going to lose data before that. And, we'd like to get that E-memory dump just any time you're ready. We're all configured.

132 29 31 Mattingly: You got it.

132 29 34 Roosa: Okay.

132 31 51 Roosa: And, Ken, on the High Gain, we'd like a Reacq. We'd like Pitch, zero; Yaw, 170.

132 32 05 Mattingly: Okay, you have Reacq; Pitch, zero; Yaw, 170.

132 32 10 Roosa: Okay.

132 35 01 Roosa: Okay. Ken, we're going to lose comm, with you here shortly. And, we'd like to get your onboard readouts and if you would get your book to copy, we've got a TEI-41 pad.

132 35 35 Mattingly: Okay. Let's see. Okay, I'll give you some readouts first. Battery C is 36.7; Battery B, 36.3; Battery A, 36.8. I guess all you really needed out of that was Battery C though. Now, you'd like the pyros. Okay. They're - A is 36.7 and B is 36.7.

132 36 24 Roosa: Okay. We've got all of those. Give us your RCS.

132 36 26 Mattingly: And, you'd like to have - you want the quantities?

132 36 34 Roosa: That's affirmative.

132 36 40 Mattingly: Okay. On A - 63 percent. Bravo shows 62 percent.

132 37 08 Roosa: And, Ken; let's go Auto now with the High Gain. We're going to lose you in Reacq.

132 37 16 Mattingly: Okay. You've got Auto. Charlie is 66 and Delta is 67.

132 37 24 Roosa: Okay. We've got all of those and I'd like to give you a TEI-41 pad.

132 37 33 Mattingly: Standing by to copy.

132 37 35 Roosa: Okay, it's TEI-41: SPS/G&N, 38709; plus 0.72, plus 1.33; 155:06:58.45; plus 3355.2, plus 1151.0, minus 0235.0; 181, 095, 020; rest of the pad NA. The GDC align - same as circ. Ullage, two Jets, 17 seconds. Longitude at Tig. plus 173.29, assumes no LOPC-1.

132 38 45 Mattingly: Okay. TEI-41: SPS/G&N 38709; plus 0.72, plus 1.33; 155:06:58.45; plus 3355.2, plus 1151.0, minus 0235.0; 181, 095, 020. Sirius and Rigel with the same numbers for circ; two jets, 17 seconds. Lambda plus 1732.9 and no LOPC-1.

132 39 17 Roosa: Okay. That's a good read-back and we'd like to bid you good night and remind you that your logic power for the SIM bay is still on.

132 39 32 Mattingly: Okay. Thank you very much. I'll see you in the morning.

132 39 35 Roosa: Okay. And we'd like to have Reacq at LOS. And that will be Pitch, zero; Yaw, 170...

132 39 45 Mattingly: Okay, I'll get it. I

132 39 48 Roosa: Okay.

132 39 49 Mattingly: I have Pitch, zero; and 170 set in.

132 39 51 Roosa: Okay. Get a good night's sleep.

132 39 56 Mattingly: Okay. Good night, Stu. Yes, sir. Thank you very much. You've been a big help.

132 40 03 Roosa: We'll see you tomorrow.

132 40 08 Mattingly: Okay.

[Loss of Signal. No further transcript until AOS at 141:26:11 on Rev 35.]

Public Affairs Officer: This is Apollo Control 132 hours 56 minutes Ground Elapsed Time [132:45 actual GET]. We've had Loss of Signal now with Command Service Module Casper. Ken Mattingly and Stu Roosa met [sic] each other good night about four minutes prior to LOS. Some six hours 28 minutes remaining in the sleep period for the crew of Orion at Hadley or as you were Descartes landing site. We're looking toward EVA 2 starting around 141 hours 43 minutes or possibly as late as 142 hours depending on what time the crew does indeed wake up. How much time it takes for EVA preparations, eating, getting suited up and we make get back on the new timeline in spite of the fact they were over an hour late in commencing their sleep period. EVA 2 will be a full 7 hour EVA. Here in the Mission Control Center things are rather quite. EVA 1 video tape color tape is being played back and those flight controllers who aren't busy planning tomorrow's activities are getting a glimpse of the EVA that took part - took place yesterday while they were probably a sleep. At 132:58 this is Apollo Control.

Public Affairs Officer: This is Apollo Control 134 hours, 47 minutes [134:36 actual GET] into the mission of Apollo 16. All three crewmen and Casper and Orion still asleep at this time. Casper nearing the end of its 31st Lunar orbit some five minutes and 56 seconds until Loss of Signal. No communications with Mattingly at all this rev. He said his final good night at the end of the previous revolution. Four and a half hours remaining in the scheduled sleep period for Duke and Young aboard Orion who will have a second 7 hour Extravehicular Activity period later in the day. All's well with both vehicles. No systems problems that have arisen, After Duke and Young had signed off, they came back up and said they - optical telescope in the lunar module used for navigation - optical navigation was apparently pointed near the Sun and was projecting a spot-like - like illumination inside the cabin making it difficult to go to sleep and requested permission to twist the AOT or the optical alignment telescope around to where the upper end of the instrument would not be facing the Sun. The people here had no objections. They in affect dimmed the spotlight by turning it to a different detent position. Still showing a playback for the benefit of the Gold Team flight controllers who have to sleep during the day. [Video] of the first EVA still being shown on the large color IDA 4. At 134 50 this is Apollo Control.

Public Affairs Officer: This is Apollo Control Houston at 135 hours, 35 minutes Ground Elapsed Time [ 135:24 actual GET]. The crew aboard Orion is - is sleeping as is Ken Mattingly aboard Casper. We show the Command Module presently in an orbit of 64.4 nautical miles by 55.2 nautical miles. Meanwhile in the Mission Control Center, we've had a change of shift. Gene Kranz's team of White flight controllers are now aboard. Our Capcom at this time [is] astronaut Don Peterson who has replaced Stu Roosa at this position. We expect no conversation with the crew of Apollo 16 but should one develop, we will pass that along. We're at 135 hours 36 minutes, this is Apollo Control Houston.

Public Affairs Officer: This is Apollo Control Houston at 136 hours, 33 minutes Ground Elapsed Time [136:22 actual GET]. The crew of Apollo 16 still in their rest period. Our countdown clock in Mission Control shows two hours, 52 minutes of sleep time remaining. We've had no conversation with the crew over the past hour. We're at 136 hours 33 minutes, continuing to monitor the displays and conversations at Mission Control. This is Apollo Control Houston.

Public Affairs Officer: This is Apollo Control Houston at 137 hours, 33 minutes Ground Elapsed Time [137:22 actual GET]. We show one hour and 52 minutes remaining on the rest schedule of the [LM] crew of Apollo 16. Our present schedule calls for cabin depress for the start of EVA 2 at 143 hours, two minutes ground elapsed time. At 137 hours 33 minutes, this is Apollo Control Houston.

Public Affairs Officer: This is Apollo Control Houston at 138 hours and 32 minutes Ground Elapsed Time [138:21 actual GET]. We show 53 minutes until time of crew wake-up. Presently, Casper is in an orbit 64.1 nautical miles by 55.3 nautical miles and on its 33rd revolution around the Moon. At 138 hours 33 minutes, continuing to monitor.

Public Affairs Officer: This is Apollo Control Houston at 139 hours, 17 minutes Ground Elapsed Time [139:08 actual GET]. We're some 8 minutes away, now, from time of crew wake-up. We'll leave the release line up live at this time, in the event we should hear from the crew before the 8 minutes elapse. We're at 139 hours 17 minutes, continuing to monitor. This is Apollo Control Houston.

Public Affairs Officer: This is Apollo Control Houston at 140 hours, 22 minutes Ground Elapsed Time [140:11 actual GET]. We've had noisy communications thus far with Orion this morning. The crew aboard the Lunar Module, Charles Duke and John Young, however, passed along their post sleep status reports covering a range of subjects such as how much they had eaten and how much they had slept. They also were enthusiastic about the size of the meals provided. Our Capcom since crew wakeup has been Tony England, and in the course of the conversation he's given updates to the traverse plan for EVA 2. These are minor. It's basically a typical EVA 2 plan. We had a brief voice drop out from the ground in the Mission Control Center. During this time, the crew heard from the Honeysuckle Tracking Station in Australia, and spoke with them for a brief period. Both Young and Duke sound in very good spirits as they start their second day on the lunar surface. Charlie Duke asked what day it was here on earth. We're at 140 hours, 24 minutes Ground Elapsed Time. This is Apollo Control Houston.

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Day 6 Part One
Lunar Observation,
Revs 23 to 27
Journal Home Page Day 7: Lunar Observation,
Revs 35 to 45