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Day 7 part 30: The Tom, John and Gene evening show Journal Home Page Day 8 part 32: Housekeeping, navigation and comms tests

Apollo 10

Day 7 part 31: Space Pirate on TV

Corrected Transcript and Commentary Copyright © 2018 by David Woods, Robin Wheeler and Ian Roberts. All rights reserved.

Last update: 2018-01-15

Flight Plan

152:08:40 Stafford: Houston, Apollo 10. Over.

152:08:43 Duke: Hello, Apollo 10. Houston here.

152:09:05 Duke: We're not reading you, Apollo 10.

Mission audio

152:13:29 Cernan: Hello, Houston. This is 10.

152:13:34 Cooper: Go ahead, 10. Houston.

152:13:39 Cernan: OK. I just hit Command Reset so I can get my High Gain back, and you're locked on Auto Track, Narrow.

152:13:44 Cooper: Affirmative.

152:15:57 Stafford: Hello, Houston. Apollo 10.

152:16:04 Duke: Go ahead.

152:16:09 Stafford: Roger. At 52:30, could you give us - At 52:30 when we start this pass, could you give us our distance from the Earth, and also our distance from the Moon, and our relative velocity? Over.

152:16:23 Duke: Roger. Tom, we'll be with that - get that up to you just in a minute.

[16-mm film magazine W includes footage taken of both Earth and Moon at around this time.]

[Comm break.]

152:20:33 McCandless: Apollo 10, this is Houston. Over.

152:20:35 Young: Go ahead. Over.

152:20:39 McCandless: Roger. I've got your distances from Earth and Moon and velocities, when you're ready to copy.

152:20:47 Young: Go ahead. Over.

152:20:49 McCandless: Roger. Distance from the Earth, 168,375 nautical miles [311,830 km]; velocity with respect to the Earth, 5,008 feet per second [1,526 m/s]; distance from the Moon, 45,313 nautical miles [83,920 km]; velocity with respect to the Moon, 5,048 feet per second [1,539 m/s]. Over.

152:21:24 Young: Roger. So we're pulling away from it, huh?

152:21:27 McCandless: Yes, indeed. And are you all making plans to ensure any food before turning in this evening? We don't see it in the Flight Plan.

152:21:40 Young: That doesn't mean we won't do it, because he left it out of the Flight Plan.

AS10-35-5257

View of the Moon during the transEarth coast.

(Click on the above image for a larger version.)

152:21:45 Stafford: If we get hungry, we're going to eat. Over.

152:21:48 Young: Listen, there's no place in the Flight Plan to put snacks, either, but that's what we've been doing.

152:21:51 McCandless: Roger. The motivation for that is that Deke is sitting down here at the console, and he says he is hungry.

152:22:05 Stafford: Deke must have been using that Exer-Genie. Over.

152:22:08 Young: Tell him to see if he can find a good candy bar out there in the...

152:22:10 McCandless: [Laughing.] No. He's only going to eat if you all eat.

152:22:13 Stafford: OK. Well, we've consumed most of it up through, starting on day 6. We're about on meal B of day 6, and we have about two meals that are not consumed out of that total. Over.

152:22:30 McCandless: Roger. Understand. You...

152:22:33 Stafford: Also - Also, tell Deke he's really missing something if he doesn't combine that water - that food with water that's filled full of gas, because that's really a thrill. Over.

[Stafford is referring again to the issue they have been having with their onboard water supply always containing gas. This water is used to hydrate many of their meals.]

152:22:44 McCandless: [Laughing.] Roger.

152:23:00 Young: Hey, Bruce. That star landmark, we never did any of that in the simulator and we never had any way to practice it, and all we've ever done is star horizon. But, my opinion of that, as a task, is that it's far easier than star horizon, and it would probably be just the way to go for a no-comm nav case. You could pick a couple of good sites on the world which, like out there in Arabia and Baja California, usually always open; why, it would be a good way to go.

[Young has been performing P23 Cislunar Midcourse Navigation, to prove the no-comm navigation concept. He has made sightings on stars and lunar craters rather than stars and the Earth or Moon horizon. He is pointing out that he believes distinctive Earth landmarks could also be used.]

152:23:29 McCandless: Roger. We copy that. And we're still working on reducing the data from your sightings.

152:23:38 Young: Roger. I would think it would be more, at least as accurate as star horizons. The stars at this point - the brighter stars like Arcturus and Spica - filled up the entire crater, so it was really no problem. The smaller stars: Denebola, Gienah and - and Gienah, they didn't quite fill up the whole crater, but it was so easy to put those things in there and make a Mark that it's just no task.

152:24:17 McCandless: Roger. I understand that Gienah was bright enough against the background to be used for marking. Is that correct?

152:24:26 Young: Sure was.

152:24:28 McCandless: Roger.

152:26:36 Young: Hello, Houston. We're configured and waiting and standing by for your Go on the TV. Over.

152:26:45 McCandless: 10, this is Houston. Roger. We'll let you know in a minute.

152:26:57 McCandless: 10, this is Houston. We're Go for TV now. Over.

152:27:02 Young: OK. We'll be coming your way in about 30 seconds.

152:27:09 McCandless: Roger.

Mission audio

152:28:57 Cernan: Hello, Houston, this is 10. Are you seeing the TV?

152:29:02 McCandless: Negative, 10. It's not coming through the network yet.

152:29:08 Cernan: OK. It should be on the way.

152:29:10 McCandless: Roger.

152:29:24 McCandless: Roger, 10. We're receiving your signal now. It looks like you're showing us the Moon.

152:30:06 McCandless: Roger, 10. We've got you now on the monitor. It's coming in very clearly. Very good picture. Not much noise at all in the loop, and the color looks like it's in pretty good shape, also. Over.

152:31:43 McCandless: 10, this is Houston. We're getting a good picture now. Over.

Television coverage from Charlie Brown.

TV transmission (315MB MP4 video file)

152:32:29 McCandless: 10, this is Houston. At the present time we're getting good TV, but no downlink voice right now. Stand by.

152:32:59 Cernan: Hello, Houston. How do you read now?

152:33:03 McCandless: Roger, 10. This is Houston. Reading you loud and clear on the voice now and a clear TV signal. Over.

152:33:10 Cernan: OK. The Moon and the Earth are the same relative size to us now. The planet Jupiter is easily visible about 5 diameters from the Moon. We can see stars within 6 diameters of the Moon. Anything within that is washed out. The maria areas are very easily visible. The Sea of Fertility, the Sea of Tranquility, where the basic landing sites are, the Sea of Serenity, are the large maria areas to the center part of the height of your screen as you approach the terminator. I don't know whether you heard me the first time, but the Moon is technically - to us it's upside down. The north pole is at the bottom, the south pole at the top. The east is the most prominent area to the left, and the west goes toward the terminator. We're actually pointing in the heavens towards the southern stars.

152:34:12 McCandless: Houston. Roger.

152:34:15 Cernan: The Moon with the naked eye and through our monocular, we can still see very vividly some of the most important landmarks. We can see Apollo Ridge, which we crossed over and used as a basic IP [initial point] for our approach for landing Site 2; we can see some of the smaller craters that surround our landing site area, are clearly visible to us yet at this time and, I might add, that the Moon from this position is pointing off to the side. I hope that this picture is giving you the detail, the resolution that we see with the naked eye here.

152:34:47 McCandless: Roger. We are getting very good resolution on the black and white monitor here at the console, and I guess we all wish that we could be up there with you looking at it first-hand.

152:34:59 Cernan: Well, Jack, you and the folks that are seeing us - watching us leave the Moon, and we're moving away as you see this picture, Bruce, about 3,500 miles per hour [6,500 kph]. So, if the picture looks like it is getting smaller slowly, it really is.

152:35:17 McCandless: Roger, Gene.

152:35:19 Cernan: Let me take you over, Bruce, to show you the Earth from Tom's window.

152:35:54 Stafford: At this time, you should have the Earth coming through on your set down in Houston. Over.

152:36:01 McCandless: Roger. We've got it.

152:36:04 Stafford: OK. Houston, Apollo 10. We're looking at the Earth out of our left window. We now are approximately 168,000 miles [311,000 km] on our return journey to the Earth, and again relative to the Earth, we're traveling approximately 3,500 miles per hour [6,500 kph]. At this distance, as Gene has described, the Earth and the Moon look approximately of the same diameter. And, as we look at it here, the Earth is growing from, say slightly smaller than a tennis ball, where it looks about the size of an orange. As you can see the Earth there, actually it's upside-down with the white cap as the North Pole. And, since most of you watching your TV sets can't turn upside-down very easily, what I am going to do is turn this camera over upside-down, since it's no trouble for us. See if that will work... OK. There we go. It's pretty easy for us to go upside-down and right-side-up as far as attitude. It makes very little difference except for a maneuver. And so, instead of requiring all you people to stand on your heads to recognize the great state of California out there, I'll just turn this upside-down in my head. As we look out there, we can see the terminator, and it has definitely crossed over to the Arizona area, and at Baja California is barely discernible. You may not be able to see it through the cloud cover. Also, it looks like we have some clouds all the way up to Los Angeles. It may even be smoggy out there today. Toward Seattle, Washington, it looks like some cloud cover, and the North Pole still has that same complete coverage as Northern Canada, over into Russia; the same cloud coverage that we have observed all the way on our trip out from Cape Kennedy starting last Sunday. It's a very beautiful, beautiful view as we start our return visit - journey - there to the Earth, and we do have a great attitude for seeing it all the time. As we slowly rotate going back home to the Earth, we'll have the Earth out one window and then the Moon out the other, and later on the Sun. At this time, again you can see that the majority of the features are strictly clouds. The blue you see down near the bottom of your screen there is the lower South Pacific Ocean, down toward the Galapagos Islands. Now, how is your picture, Houston? Over.

152:38:44 McCandless: Coming in beautifully, Tom.

152:38:49 Stafford: Roger.

152:38:51 Cernan: A good relative size for both the Earth and the Moon. Tom mentioned one and another one might be: if you took a nickel and held it about 18 inches from your eyeball, that's what the size of the Earth the diameter of the Earth and the diameter of the Moon, appear to us at the present time.

152:39:10 McCandless: Roger. Understand. This tennis ball - Is that a tennis ball at arm's length?

152:39:20 Cernan: It's more like a nickel at arm's length, for the average eyeball.

152:39:27 McCandless: Roger.

152:39:31 Stafford: A tennis ball is a good size just looking at it at a distance, but in a correlation, it would be to that. And, Houston, how is the color coming through? Mostly whitish browns to the right of the set and darkish brown in there towards the California coast, and the blue down in the South Pacific. Over.

152:39:51 McCandless: Roger. The color is in here with high fidelity.

152:40:00 Stafford: Sounds great. OK, Houston, we're going to take you inside the cockpit for just a couple of minutes here. 0ver.

152:40:03 McCandless: Roger.

152:40:30 McCandless: OK. We've got the interior scene. Looks like you are looking at the dosimeter or radiometer there.

152:40:54 McCandless: 10, this is Houston. We're not getting very much illumination. Is that John at the NAV base?

152:41:03 Stafford: Roger.

152:41:07 McCandless: We can make out the wall of the spacecraft clearly, as for John's back, it's pretty well shadowed right now.

152:41:16 Cernan: OK. John is using the optics in a rather unorthodox fashion right at the moment. He appears to be upside down. Just, just a second. I'll see if I can turn him right-side-up for you.

152:41:35 Cernan: OK. Now we have John right-side-up, but the spacecraft is upside-down. We've got - still got a problem here. Stand by.

152:41:50 Cernan: I guess we'll just have to accept the spacecraft right-side-up, and John upside-down. Here he comes.

152:42:16 McCandless: OK, that's a lot better.

152:42:21 Stafford: That's what the average space navigator looks like, after 543 marks.

152:42:27 Stafford: You can observe the patch over one eye to help him adapt.

[Young is seen wearing an eye patch to assist in dark adaptation when using spacecraft optics.]

152:42:47 McCandless: [Laughing.] Roger. You've really got a...

152:42:51 Stafford: You might think he was some ancient pirate, but actually this is what the modern day space navigator looks like after all the marks that he has been taking. He's done a fantastic job on determining the altitude of the Moon's surface, and shooting all the star sightings. Over.

152:43:05 Cernan: You can see John's star chart above his optics right there, and above that are some of the codes that are used to operate the computer - the guidance computer on board.

152:43:17 McCandless: Roger.

152:43:55 Young: OK. This is what happens to the optics in zero gravity.

152:44:06 Young: Once you start a screw or bolt turning up here, it just keeps right on going forever. There is just absolutely no friction associated with operation of moving parts. That's why we have to stick everything together with glue. And since they have been rotating like this, I have lost both of them at least once.

152:44:31 Young: If you don't think it's hard for a one-eyed guy to find something like this when it's running around in the cockpit, you're not with it.

152:44:44 Cernan: I'll back off and show TP here.

152:44:58 McCandless: OK. We've got Tom on the screen now.

152:45:11 McCandless: 10, this is Houston. Tom's voice isn't coming through.

152:45:18 Stafford: As you can see, all of us have grown a little bit of a beard in the 6 days since we left Cape Kennedy. It's been a fantastic voyage out here, and it's certainly been a sight, and we hope we've been able to share a part of it with you by sending back some pictures.

152:45:38 McCandless: Roger. They've been some very impressive pictures, too.

152:45:53 Stafford: Again, just like we showed you one time before, once you're in zero gravity and you're adapted to it, it makes no difference whether you're right-side-up or upside-down. And we have been floating all over the cockpit doing chores, making attitude maneuvers, shooting stars, as you can see John there. And we'll say we feel in really great health. In fact, we've felt great ever since we climbed aboard the Saturn V rocket on Sunday, and we're certainly looking forward to a return to the Earth, and I think we'll be about as healthy when we return as when we left. Over.

152:46:31 McCandless: Roger.

152:46:37 Stafford: Here you see a pair of our scissors that we open the food with, just slowly floating.

Mission audio

152:47:37 Stafford: OK. We'll go over to the right side of the cockpit, and here's Gene Cernan. Right now, Gene and John are vying for the basic contest of who's growing the best moustache.

152:47:54 Cernan: For Jack Schmitt's sake, this is how we take targets of opportunity.

152:48:08 Cernan: This has been a, it's been a great trip, so far. We've worked hard, but it's been very challenging and very, very rewarding to us as a team here, and, I hope, to our team down there; because we couldn't be where we are if it wasn't for all you guys down there, and we really appreciate it.

152:48:31 McCandless: Thank you, 10. And I'll pass it on to everyone here in the MOCR and on the other shifts; and I guess it goes without saying that we admire the fine performance that you all have turned in up there.

152:48:43 Stafford: Thank you, Bruce. It's really been great. That pass down to the lunar surface at 50,000 feet [15,240 metres], and the rendezvous, and then shooting the top part of Snoopy around the Sun, and all the landmark tracking, and viewing the Moon as we saw it. And also, that climb out this morning as we left the Moon. Now, that's something you just won't ever forget; and it was so fantastic, that we just wanted to share it there with you. Over.

152:49:07 McCandless: Roger.

152:49:11 Stafford: Here you see Gene turning around the flashlight that's turned on. Now, one thing we use in the spacecraft because we do have the problem of zero-g is some material called Velcro, and here you'll see Gene putting a light on one of the knobs, and John is also putting a pencil there. In fact, with just one small piece, he can hold this whole camera that we have. It's only less than 1 inch square, but yet it has the cohesive force to hold the desired object to the surface.

152:50:03 Stafford: Well, we're going to end our TV cast, now, by again just showing you the Earth and the Moon for one quick glance, and Gene will take the camera and point it out to the Moon.

152:50:15 McCandless: 10, this is Houston. Is there anything we could see in the vicinity of the tunnel regarding condensation, or anything up there?

152:50:21 Stafford: Yes. We'll take you up in our tunnel there. We've got a lot of gear stored in it.

152:50:54 Slayton : Looks like Snoopy up there to me.

152:51:01 Stafford: [Laughing.] You better believe, that may be a part of Snoopy.

152:51:13 Young: OK. You're looking at the edge of the hatch. There's the hatch handle right there; the basic mechanism of the hatch handle mechanism that opens. If you can see it, there's condensation all over there. It's all wet, and right up there under the tunnel vent lights around the seal is drops of water condensing out.

152:51:45 Young: Can you see that water on the tube? Does it show up on the monitor? And, there's condensation on the walls of the tunnel, as far down as the top of the hatch surface.

152:51:50 Young: But there's very little electrical wiring in the tunnel, so we're not really worried about that.

152:52:13 McCandless: Roger. We can't make out much in the way of water. We can see a little bit of glistening occasionally. That's about the size of it.

152:52:17 Young: That's it, that's it. Well, there's a thin, there's a thin film of drops all over the hatch, and...

152:52:28 McCandless: Roger. We caught something there.

152:52:33 Young: Can you see that?

152:52:39 McCandless: Roger.

152:52:44 Young: That's the same type of film that's all over the hatch and the tunnel walls. Saw a lot on the hatch - on the pressure equalization valve. Look at it, right there.

152:53:00 McCandless: Roger.

152:53:03 Young: Bright, shiny spots of water.

152:53:10 Young: And like I said before, this morning, it's 20 degrees cooler in the tunnel; very nice up there. The pressure equalization valve is covered with water – well every piece of equipment in there, particularly the steel pieces around the rim of the seal and pressure equalization valve, are covered with a thin film of water drops. I think you can see some, even on the hatch mechanism. Can you see the alignment arrows...

152:53:50 McCandless: ...Yes. Just one...

152:53:51 Young: ...that we use to align the hatch with?

152:53:54 McCandless: Roger. The alignment arrow comes through nicely. In fact, we could read, I guess it was "gear box disconnect" a few minutes ago.

152:54:05 Young: Roger. This hatch weighs about 80 pounds [36 kg] or a little better, and in one g with - a man has very great difficulty to position this thing and install it, and locking it by himself. In zero gravity it's extremely easy to manipulate and operate, and it was even easy to wrestle it by these hoses the other day, which we had to take it out and put it in two or three times while we're checking out the lunar module, which was attached just above this hatch. But it was a piece of cake to haul it in and out.

152:54:47 McCandless: Reports like that are good news for our AAP [Apollo Applications Program-Skylab] package handling problem.

152:54:57 Young: I didn't say it would be easy for AAP, Bruce.

152:55:07 Cernan: I don't believe you can see it, but there's some big drops of water about the size of a quarter right where John is putting his hand up there, right now. Right opposite that tunnel light, and opposite the end of the hatch handle. It's on the vertical portion of the hatch.

152:55:56 Stafford: Right now, John has one of our absorbent towels and is mopping up the water around in that area on the hatch handle.

152:56:05 McCandless: Roger.

152:56:29 McCandless: OK. We're getting an outside view, again.

152:56:33 Young: Roger. As a matter of fact, I was just up in the tunnel feeling of that. That stuff on the outer hatch seal is not water. It's ice.

152:56:43 McCandless: Roger. Ice.

152:57:59 Stafford: OK. Gene is going to focus it on the Moon. There, I think he's got it. Over.

152:58:04 McCandless: Roger.

152:58:10 Cernan: OK. Like Tom did with the Earth, I've turned the Moon over for you and you're looking at the North Pole at the top; the east is to the right; and the south is to the bottom of your screen. You're looking at the main area that we were interested in as far as landing site operation is concerned, the dark area in the middle: the maria, Sea of Tranquility, Sea of Fertility area. As I say, with the naked eye this is still very plain and very visible, and this is full zoom on the lens. The relative size again at - some - about 40,000 miles [74,000 km] away from the Moon about 45,000 miles [83,000 km] away. It looks like about a - fills up the size of about a nickel at about 15 inches [38 cm]. So, with that we'll leave you. Apollo 10 from Tom, John, and Gene saying, we're proud to be here, we're loved to represent so many people back there. It's been a pleasure; it's been hard work, but it's been a tremendous challenge, and we're looking forward to a complete and successful landing; and thank you all again.

152:58:21 McCandless: Roger, Apollo 10. We're looking forward to having you all back in about 2 days here. We're standing by.

152:58:30 Stafford: Roger, Bruce.

152:58:52 PAO: The duration of that transmission was 29 minutes, 5 seconds.

153:00:08 Stafford: Hello, Houston, Apollo 10.

153:00:10 McCandless: Go ahead, 10.

153:00:14 Stafford: Roger. You've heard our report, how we feel healthy and very hardy up here. Just want a report on how our boss is doing, going through the same simulation with the food on the ground. Over.

153:00:25 McCandless: Stand by a second. The boss just walked out - to go eat, we believe...

153:00:31 Young: Just walked out? He's probably about half sick.

153:00:33 Stafford: What did you say, Houston?

153:00:34 McCandless: [Laughing.] Roger. We're speculating he went out to eat. He came over here to watch the pass, and I guess it was a secondary objective to find out whether you all were inserting a meal in the Flight Plan for today or not.

153:01:02 Cernan: He had some other conveniences to go with that food that we don't have that might make it taste better.

153:01:08 CapCom: [Laughing.] Roger.

153:01:26 PAO: The boss is Donald K. Deke Slayton, Director of Flight Crew Operations. ... And Deke Slayton was in the viewing room talking to Mrs. John Young at the time the crew asked for the status report from him. I believe he's coming into the Control Center now and will probably talk with the crew very shortly.

153:03:28 Stafford: Hello, Houston. Apollo 10. Over.

153:03:31 McCandless: Go ahead, 10.

153:03:36 Stafford: Roger. For the G&N water Delta-V, want to reconfirm that the yaw angle is 060 degrees. Over.

153:03:45 McCandless: Stand by.

153:03:51 Young: You know, Houston, if it's 060 degrees according to the book on one of these burns, you got to realign the platform. That's too close to the middle gimbal. Over.

153:04:08 McCandless: Roger. We don't want you to have to do that, so we'll waive the 060 bit.

153:04:30 McCandless: 10, Houston. Correction there. We will waive the platform realignment and use yaw 060.

153:04:39 Young: I was afraid you were going to say that.

153:04:53 Slayton: 10, Houston.

153:04:57 Stafford: Go ahead, Houston.

153:05:01 Slayton: Roger. Understand you wanted a food report from the one-g test sample down here.

153:05:07 Stafford: Roger. We're doing real good up here, Deke, and feel real healthy. Wondering how you were surviving down there on it. Over.

153:05:14 Slayton: I'm surviving real well, except I'm starving to death. That hydrogen up there must be real filling.

153:05:21 Stafford: [Laughing.] It is, and I guess that's the only factor that you're missing there, boss, because this water really seems to fill you up. Over.

153:05:30 Slayton: Well, we save some weight on food that way.

153:05:36 Stafford: Right. Good reducing diet also. I guess our total BTU's per day is probably a little bit less, particularly after that rendezvous day here, as far as our movements and everything; and you start to use the Exer-Genie right away, you build up a heat load that 5 psi can't circulate out very well. Over.

153:05:56 Slayton: Roger. I expect that's true.

153:06:25 Stafford: Houston, Apollo 10. Again, I mentioned earlier today, and I guess it got relayed on to you, that we're still itching quite a bit from all the insulation that we got in here from the tunnel hatch; and at least after that microbiology, the next thing we want to do after we get aboard the carrier is going to be to take a shower. Over.

153:06:49 Slayton: Roger. Got that message, Tom, and the medics are shaking their heads "yes." That sounds like a reasonable plan to them.

153:06:57 Stafford: OK. Real good. I wish we'd had a camera going inside. It looked like three people scrambling around in a snowstorm here when that vent valve was opened up there. And the same way over in Snoopy. Snoopy was completely covered with the snowstorm but we got it fairly well policed-up, but it still is settling around all over. And so, we're taking care of it the best we can, but I think that's the best way to get rid of the rashes we have. Over. There's no problem, but we just want a shower as soon as we get out.

153:07:27 McCandless: 10, have you...

153:07:28 Young: We keep cleaning the inflow valve out at regular intervals.

153:07:33 McCandless: Roger. Have you tried using the wet-wipes? Do they help any?

153:07:40 Stafford: Oh, yes. We've taken about the best type of shower we can, and all skin treatment - everything else, and we keep cleaning the inflow valve to the ECS system - oh, at least three or four times a day, and still just finding fibers - lint from the fiberglass in there. But we've got everything under hand, but in the meanwhile, we just itch a little bit. Over.

153:08:01 McCandless: Roger. We copy. And we'll work on lining up some showers for you.

153:08:08 Stafford: OK. Thank you, now.

Mission audio

[Comm break.]

153:12:24 Stafford: Houston, Apollo 10. You can relay on to Deke that we aren't going to eat another meal before we go to bed. Over.

153:12:27 McCandless: Roger. He was here listening.

153:12:32 Slayton: Roger. Got that message. I'll start making the line-up right now.

153:12:34 Stafford: Tell him not to get hungry, now, down there.

153:12:37 Stafford: [Laughing.] OK. Real good, Deke.

[Comm break.]

153:20:10 Young: Houston, this is Apollo 10. Over.

153:20:11 Duke: Go ahead.

153:20:14 Young: Roger. Should we be in Narrow Deadband for this water dump? Over.

153:20:27 Duke: Stand by.

153:20:31 Young: What quads do you want enabled and disabled today?

153:20:45 Duke: Roger, Apollo 10. Wide Deadband is satisfactory, and your DAP is configured properly. Over.

153:20:50 Young: Thank you, sir.

153:20:54 Stafford: And would you give us a Mark at 9 minutes to the maneuver? Over.

153:20:57 Duke: Stand by.

153:20:59 Young: So we can get our clocks Synced.

153:21:01 Duke: MARK.

153:21:05 Stafford: Roger. Our clocks are Synced, and we're counting down to the maneuver. Thank you.

153:21:20 Duke: Roger.

153:21:44 McCandless: 10, this is Houston.

153:21:47 Stafford: Go ahead, Houston. 10.

153:21:49 McCandless: Roger. We just got informal word from the Princeton that they've got plenty of hot water and soap available on board for you.

[The prime recovery vessel, USS Princeton, advises they can support the astronauts need for a shower immediately after recovery to rid them of the irritating insulation from the forward hatch.]

153:22:01 Stafford: Well, thank you very much. Certainly appreciate the effort, there.

153:22:05 Young: Are you sure they're hot on water?

153:22:09 McCandless: They said whatever the situation...

153:22:11 Stafford: Is that salt water? Over.

153:22:12 McCandless: They would make an exception for you all.

153:22:19 Stafford: OK. Tell them thanks a lot. Over.

153:22:21 McCandless: Roger.

153:23:00 McCandless: Apollo 10, this is Houston.

153:23:03 Stafford: Go ahead, Houston, 10.

153:23:04 McCandless: Roger. For John, Barbara was in here in the viewing room watching the show, and she enjoyed the production and hearing you very much.

153:23:08 Young: I see. Thank you.

153:23:09 McCandless: Roger. Out.

Mission audio

153:26:50 Stafford: Houston, Apollo 10. We're in the maneuver altitude and counting down, coming up on 3 minutes to maneuver. Over.

153:26:59 McCandless: Roger. Coming up on 3 minutes.

153:27:00 McCandless: MARK.

153:27:01 McCandless: Three minutes.

153:27:05 Stafford: Roger.

153:27:09 PAO: And this manuever, is a waste water dump.

153:29:02 Stafford: MARK.

153:29:03 Stafford: One minute to the maneuver.

153:30:06 McCandless: Roger. Fifty-four seconds and counting.

153:30:11 Stafford: Roger. Would you count us down to the last 5 seconds, please, Houston? Make sure we're accurate there when we start it. Over.

153:30:21 McCandless: Roger.

153:30:54 McCandless: Roger. Stand by. 5, 4, 3, 2, 1.

153:30:59 McCandless: FLUSH. (Laughter)

[The waste water dump mid-course correction has commenced.]

153:31:06 Stafford: Roger. And we're on the way.

153:31:08 Cernan: We've got a good ignition. The valves are open; the pressure's good.

153:31:36 Young: Man, it's raining out there.

153:32:04 Stafford: Houston, at 1 minute, the maneuver looks good. Over.

153:32:09 McCandless: Roger out.

153:32:18 Young: Steering is straight and true.

153:32:22 Cernan: We've got a pull 0.0000015 g, at the moment.

153:32:38 Stafford: Houston, if Deke's still there, ask him what he thought of that rate of climb this morning after we lit the big afterburner. Over.

[Stafford is referring to the apparent rate of climb they had as they left the Moon after the TEI burn.]

153:32:46 Slayton: That was pretty impressive, Tom. I've never seen anything quite like that.

153:32:52 Stafford: Yes. Neither have I, Deke. All three of us just sat there in amazement. We just went vertically right out from it. It was really amazing ... like you really pulled back on the pole after the burner was lit and you're up to V MAX.

153:33:07 Slayton: Yes. I'll have to take that ride with you someday.

153:33:12 Stafford: Sure love to have you.

153:33:13 Young: Boy, that engine really runs. I tell you that three-quarters of a g were getting felt like about 7 g's. It's hard to get your head off the headrest.

153:33:40 Young: I think the real impressive thing about it, though, is the accuracy with which it controls and ends up. Once you get done with a burn, by golly, it doesn't look like we got any work to do much now.

153:33:54 Slayton: Yes. That was fantastic, that cut-off.

153:34:02 Stafford: Yes. The guidance systems have really performed for us on this whole mission, in fact, even including the Saturn there. Over.

153:34:10 Slayton: Roger. No question about it.

153:35:33 Cernan: Say, Deke, I'm trading John one shrimp cocktail for two chicken soups, but you don't have that advantage down there. So you just have to stay with what you've got.

153:35:44 Slayton: Yes. I'm eating Tom's menu so I don't have much variety there.

153:35:50 Stafford: Sorry about that.

153:36:12 Slayton: Actually, the flavor is pretty good down here, Tom. I don't know how it affects you up there, but my opinion it's probably the gas is giving you the most problem, and not the basic food.

153:36:25 Stafford: Right, Deke. Yes. The food itself tastes real good and those wet packs are good. Man, they've made a real great effort. And the only thing is I'm sure just the water has filled us up so much and the lack of total activity in here, we just - We're staying completely filled up. There's no doubt about that, but we're just lagging a little bit behind in the total number of meals consumed. Over.

153:36:47 Slayton: Roger. Understand.

[Comm break.]

153:40:13 McCandless: 10, Houston. We show you about 12.0 percent now.

153:40:28 Cernan: Roger. I'm reading about 15. I'll bias it and cut if off at 10.

153:40:34 McCandless: Yes. We show 10 now.

153:40:38 Cernan: Say again.

153:40:40 McCandless: Roger. We show 9½ percent now. You're overburning.

153:40:44 Cernan: Roger. Manuals cut off - shut off. We got it. Residuals look like about 0.05 percent plus.

[Burn, or flush complete.]

153:40:58 McCandless: Houston. Roger. Out.

153:41:02 Stafford: Houston, this is 10. It looks as if the Isp might have been a little bit low as far as the total burn time was concerned. Over.

[Stafford is referring to the specific impulse (Isp), which is a measure of the efficiency of a rocket engine, of the waste water dump on this occasion.]

153:41:08 McCandless: Roger. Actually in defense of the EECOMMs, shortly before the burn they came up with a revised burn time about 10 plus 58, so looks like they were right about in the middle on it.

153:41:20 Stafford: Roger.

153:41:23 Cernan: Oh, EECOM is doing the trench work now, huh?

153:41:29 McCandless: For a maneuver of this sort, yes.

153:41:56 McCandless: 10, Houston. When it's convenient for you, we can take your onboard readouts, crew status report, and things of this sort. Over.

153:42:07 Stafford: OK. Stand by. It will be a little while yet. We are right in the middle of this meal. Over.

153:42:15 McCandless: Oh, Roger. No rush. We're going to be here for a while, yet.

153:42:19 Stafford: OK.

153:42:25 PAO: Isp is specific impulse, and Apollo 10 dumped about 33 pounds [15 kg] of waste water during this maneuver.

Mission audio

153:44:47 Young: Houston, this is 10. We're going to PTC attitude, heads down tonight, and look at the southern constellations for morning realign. OK?

153:44:56 McCandless: Fine with us.

AS10-27-3966

AS10-27-3966 - View of the Moon during the transEarth coast.

(Click on the above image for a larger version.)

153:46:54 Young: Houston, this is 10. Over.

153:46:58 McCandless: Go ahead, 10.

153:47:01 Young: Roger. It is kind of - mighty cold in this tunnel area. If it really starts to freeze things up, we might want to orient this thing - hatch toward the Sun for a little bit one of these days. We'll keep an eye on it. That be all right?

153:47:17 McCandless: Roger. We copy.

[Comm break.]

153:53:04 Cernan: Hello Houston, this is 10.

153:53:08 McCandless: Go ahead, 10.

153:53:11 Cernan: I got some RAD readings for you in this order: 26044, 05044, and 15045. I got Battery C 36.8; PYRO BATT's are both 37; RCS 54, 66, 67, and 64.

153:53:39 McCandless: Roger. Readback...

153:53:42 Cernan: That's all right, Bruce. I've got them written down. I'm sure you got them right. I'm cycling the fans, and I'm going into an O2 purge at this time.

153:53:56 McCandless: Roger. Like to confirm the RAD readings. 26044, 05044, 15045. Over.

153:54:06 Cernan: That's it. You got them.

153:54:08 McCandless: Roger.

AS10-27-3967

AS10-27-3967 - View of the Moon during the transEarth coast.

(Click on the above image for a larger version.)

[Comm break.]

153:58:08 McCandless: 10, this is Houston. Over.

153:58:12 Stafford: Go ahead. Over.

153:58:14 McCandless: Roger. Looking ahead in the Flight Plan, there's nothing very critical immediately following your rest period. If required we could slip the P22 work by a couple of hours and if you want to go ahead and sleep in it's your option. Over. Sunday morning and all that.

153:58:38 Stafford: OK. I'll leave that - whatever John wants to do - Roger. Whatever John wants to do on that. Over.

153:58:59 Young: OK. It doesn't make any difference to me. Whatever is convenient with you all.

153:59:05 McCandless: Well, we're going to be here one way or the other and - your option.

153:59:10 Young: Well, I figured you wouldn't turn loose the MOCR. How about we play it if we wake up we do it; if we sleep, we don't. Would that be fair?

153:59:19 McCandless: That's fair.

153:59:25 Young: In other words, we do it when we wake up, if that'll be all right.

153:59:28 McCandless: Roger.

153:59:31 Cernan: Hey, Bruce. The purge is complete; the canister has been changed. What comm mode do you want me in tonight, Omni or High Gain? Omni again?

153:59:40 McCandless: OK. We'd like you in Omni comm mode. We'd like you to select Omni Bravo on board with the rest of the comm configuration per the Flight Plan, that is S-band squelch, Enable; S-band nominal mode voice, Off; and the arch tape Off.

Flight Plan

154:00:01 Cernan: OK. Fine. I'll stay High Gain here for a little bit.

154:00:05 McCandless: Roger. We'd also like you to terminate the charge on battery A and Optics Power switch to Off.

154:00:17 Cernan: OK. We got that. Thank you.

154:00:19 McCandless: And then I've got your heater configuration for the Cryo tanks.

154:00:26 Cernan: Stand by one. ... OK, Jack. Why don't you take them one at a time, and I'll just go through them - Bruce, I'm sorry.

154:00:52 McCandless: OK. Oxygen tank number 2, Auto; oxygen tank number 1, Off; hydrogen tank number 1, Auto; hydrogen tank number 2, Off.

154:01:16 Cernan: OK, Bruce. Here's what I got. I got hydrogen 1, Auto; 2, Off; oxygen 1, Off; 2, Auto.

154:01:24 McCandless: Roger. And we have an inquiry from Joe Garino as to what sort of utilization, if any, you're getting on the inflight exerciser? Over.

154:01:42 Stafford: Roger. We've been using it after TEI, and it's working out real good. Would you pass the word on to Joe. We have been - All three of us have been using it and it's working out fine. And we were rather busy there all the time before TEI up on the whole mission, and now we're using it on the way back. Over. It works good.

Exerciser bungee

Onboard bungee exerciser.

154:02:02 McCandless: Roger. You're not having any problems with it are you, or anything like that?

154:02:07 Stafford: Negative. It works as prescribed. It's real good. Over.

154:02:11 McCandless: Very good. I'll pass it on.

Mission audio

[Comm break.]

154:06:24 Cernan: Houston, this is 10. I'm going Omni's now. I'll power down the S-band.

154:06:28 McCandless: Roger.

AS10-27-3968

AS10-27-3968 - View of the Moon during the transEarth coast.

(Click on the above image for a larger version.)

154:09:01 McCandless: Apollo 10, this is Houston. Over.

154:09:06 Stafford: Go ahead, Houston. Over.

154:09:09 McCandless: Roger. On the High Gain antennas we'd prefer you to leave the antenna powered up but in the manual mode overnight. Over.

154:09:18 Cernan: OK, Bruce.

154:10:48 McCandless: 10, Houston. When you're through with your computer, we'd like to give you a NAV - a state vector update, and update the CMC clock. And do you have any comments on the EMS [Entry Monitoring System] check? Over.

154:11:10 Young: No. We haven't done it yet. Over.

154:11:12 McCandless: Roger. Out.

154:11:41 Young: We're P00 and ACCEPT. Over.

154:11:46 McCandless: Roger.

Mission audio

154:15:07 PAO: This is Apollo Control at 154 hours, 15 minutes. We're showing Apollo 10's distance as 163,186 nautical miles [302,220 km]. Velocity, 5,082 feet per second [1,549 m/s]. We're estimating the change of shift news conference for 10:30 pm central daylight time.

[Comm break.]

154:17:48 McCandless: Apollo 10, this is Houston. We've completed the state vector and clock Delta-T uplink. We've performed the Verb 66 for you. Over.

154:18:14 Young: Houston, we're in a 20-minute wait period with our C and D [SM RCS] jets disabled, prior to setting up a three-tenths of a degree roll rate.

154:18:23 McCandless: Roger. We copy. We're through with the computer. We did a Verb 66, state vector update, and clock update.

154:18:31 Young: Houston, Apollo 10. Over.

154:18:34 McCandless: Apollo 10, this is Houston. Reading you loud and clear. Over.

154:18:50 Cernan: Houston, this is Apollo 10. Over. How do you read?

154:18:55 McCandless: Apollo 10. Apollo 10, this is Houston. Reading you loud and clear. Over.

154:19:35 McCandless: Apollo 10. This is Houston. Over.

154:19:42 Young: Roger. We're not reading you, Bruce. We know you're trying, but we can't make it out.

154:19:56 McCandless: Roger, 10. We'll keep trying.

154:20:01 Young: OK. Read you loud and clear now.

154:20:03 McCandless: OK. We're through with the computer. We gave you a state vector update, a clock update, and we did the Verb 66 for you. Over.

154:20:15 Young: Thank you. I was just saying we're in our 20-minute hold period prior to setting up a three tenths degree rate and going to a wide deadband.

154:20:21 McCandless: Roger. We copy. We'll stick with you until you get set up in PTC, and then I guess we'll bid you a good night.

154:21:06 McCandless: 10, Houston. On our displays down here, we show your rates nulled out sufficiently to proceed with setting up the desired roll rate. Over.

AS10-27-3969

AS10-27-3969 - View of the Moon during the transEarth coast.

(Click on the above image for a larger version.)

[Long comm break.]

Mission audio

154:34:46 Young: Houston, this is 10. Over.

154:34:50 McCandless: Go ahead, 10.

154:34:52 Young: Roger. The EMS test was completed, worked just like it's supposed to.

154:35:00 McCandless: Roger.

154:35:09 McCandless: And 10, this is Houston. If you all want to sign off now, we have nothing further for you. I guess we'll expect to hear from you in the same way - I guess downvoice backup - as in the past.

154:35:22 Young: Roger. We'll be talking to you.

154:35:25 McCandless: Roger. Out. Good night.

154:35:29 Young: Good night.

154:36:47 PAO: This is Apollo Control. You heard CapCom Bruce McCandless bid the crew goodnight. At the present time. Apollo 10 is 162,122 nautical miles [300,249 km] from Earth, traveling at a speed of 5,098 feet per second [1,554 m/s]. This rest period is scheduled to last for 9 hours until about 163 hours, Ground Elapsed Time. During the night, we'll give you periodic status reports on the condition of the spacecraft and the position and we'll be continuing to monitor systems and also the biomedical information on the crew. At 154 hours, 38 minutes; this is Apollo Control.

155:24:XX PAO: This is Apollo Control 155 hours, 24 minutes. Flight Surgeon reports that the crew apparently are still awake. The last time we heard from them was about 50 minutes ago. And CapCom Bruce McCandless bid the crew good night. We have biomedical data on Tom Stafford and Gene Cernan. John Young is apparently in the sleep station under the right couch. We don't have biomedical data on him, but the information we're getting from telemetry from Stafford and Cernan indicates that they have not gone to sleep at this time. Apollo 10 is now 159,739 nautical miles [295,836 km] from Earth. That's more than 51,000 miles [94,450 km] from the Moon at this point, and traveling at a speed of 5,135 feet per second [1,565 m/s]. At 155 hours, 25 minutes; this is Mission Control, Houston.

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Day 7 part 30: The Tom, John and Gene evening show Journal Home Page Day 8 part 32: Housekeeping, navigation and comms tests