Apollo 12 Timeline
|
Event |
GET (hhh:mm:ss) |
GMT Time |
GMT Date |
|
Countdown started. |
-098:00:00 |
00:00:00 |
9 Nov 1969 |
|
Scheduled 12-hour hold at T-66 hours. |
-066:00:00 |
07:00:00 |
10 Nov 1969 |
|
Countdown resumed at T-66 hours. |
-066:00:00 |
20:00:00 |
10 Nov 1969 |
|
Scheduled 16-hour hold at T-48 hours. |
-048:00:00 |
08:00:00 |
11 Nov 1969 |
|
Countdown resumed at T-48 hours. |
-048:00:00 |
00:00:00 |
12 Nov 1969 |
|
Terminal countdown started. |
-028:00:00 |
02:00:00 |
13 Nov 1969 |
|
Unscheduled 6-hour hold at T-17 hours to replace CSM LH2 tank #2 due to leak. |
-017:00:00 |
13:00:00 |
13 Nov 1969 |
|
Countdown resumed at T-17 hours. |
-017:00:00 |
19:00:00 |
13 Nov 1969 |
|
Scheduled 9-hour 22-minute hold at T-9 hours (shortened by 6 hours to avert launch delay). |
-009:00:00 |
03:00:00 |
14 Nov 1969 |
|
Countdown resumed at T-9 hours. |
-009:00:00 |
06:22:00 |
14 Nov 1969 |
|
Scheduled 1-hour hold at T-3 hours 30 minutes. |
-003:30:00 |
11:52:00 |
14 Nov 1969 |
|
Countdown resumed at T-3 hours 30 minutes. |
-003:30:00 |
12:52:00 |
14 Nov 1969 |
|
Guidance reference release. |
-000:00:16.968 |
16:21:43 |
14 Nov 1969 |
|
S-IC engine start command. |
-000:00:08.9 |
16:21:51 |
14 Nov 1969 |
|
S-IC engine ignition (#5). |
-000:00:06.5 |
16:21:53 |
14 Nov 1969 |
|
All S-IC engines thrust OK. |
-000:00:01.4 |
16:21:58 |
14 Nov 1969 |
|
Range zero. |
000:00:00.00 |
16:22:00 |
14 Nov 1969 |
|
All holddown arms released (1st motion) (1.09 g). |
000:00:00.25 |
16:22:00 |
14 Nov 1969 |
|
Liftoff (umbilical disconnected). |
000:00:00.68 |
16:22:00 |
14 Nov 1969 |
|
Tower clearance yaw maneuver started. |
000:00:02.4 |
16:22:02 |
14 Nov 1969 |
|
Yaw maneuver ended. |
000:00:10.2 |
16:22:10 |
14 Nov 1969 |
|
Pitch and roll maneuver started. |
000:00:12.8 |
16:22:12 |
14 Nov 1969 |
|
Roll maneuver ended. |
000:00:32.3 |
16:22:32 |
14 Nov 1969 |
|
1st electrical disturbance (lightning). |
000:00:36.5 |
16:22:36 |
14 Nov 1969 |
|
2nd electrical disturbance (lightning). |
000:00:52 |
16:22:52 |
14 Nov 1969 |
|
Mach 1 achieved. |
000:01:06.1 |
16:23:06 |
14 Nov 1969 |
|
Maximum bending moment achieved (37,000,000 lbf-in). |
000:01:17.5 |
16:23:17 |
14 Nov 1969 |
|
Maximum dynamic pressure (682.95 lb/ft2). |
000:01:21.1 |
16:23:21 |
14 Nov 1969 |
|
S-IC center engine cutoff command. |
000:02:15.24 |
16:24:15 |
14 Nov 1969 |
|
Fuel cell power restored to buses. |
000:02:22 |
16:24:22 |
14 Nov 1969 |
|
Pitch maneuver ended. |
000:02:38.1 |
16:24:38 |
14 Nov 1969 |
|
S-IC outboard engine cutoff. |
000:02:41.74 |
16:24:41 |
14 Nov 1969 |
|
S-IC maximum total inertial acceleration (3.91 g). |
000:02:41.82 |
16:24:41 |
14 Nov 1969 |
|
S-IC maximum Earth-fixed velocity. |
000:02:42.18 |
16:24:42 |
14 Nov 1969 |
|
S-IC/S-II separation command. |
000:02:42.4 |
16:24:42 |
14 Nov 1969 |
|
S-II engine start command. |
000:02:43.17 |
16:24:43 |
14 Nov 1969 |
|
S-II ignition. |
000:02:43.2 |
16:24:43 |
14 Nov 1969 |
|
S-II aft interstage jettisoned. |
000:03:12.4 |
16:25:12 |
14 Nov 1969 |
|
Launch escape tower jettisoned. |
000:03:17.9 |
16:25:17 |
14 Nov 1969 |
|
Iterative guidance mode initiated. |
000:03:22.5 |
16:25:22 |
14 Nov 1969 |
|
S-IC apex. |
000:04:35.6 |
16:26:35 |
14 Nov 1969 |
|
S-II center engine cutoff. |
000:07:40.75 |
16:29:40 |
14 Nov 1969 |
|
S-II maximum total inertial acceleration (1.83 g). |
000:07:40.83 |
16:29:40 |
14 Nov 1969 |
|
S-II outboard engine cutoff. |
000:09:12.34 |
16:31:12 |
14 Nov 1969 |
|
S-II maximum Earth-fixed velocity. S-II/S-IVB separation command. |
000:09:13.20 |
16:31:13 |
14 Nov 1969 |
|
S-IVB 1st burn start command. |
000:09:13.30 |
16:31:13 |
14 Nov 1969 |
|
S-IC impact (theoretical). |
000:09:14.5 |
16:31:14 |
14 Nov 1969 |
|
S-IVB 1st burn ignition. |
000:09:16.60 |
16:31:16 |
14 Nov 1969 |
|
S-IVB ullage case jettisoned. |
000:09:25.1 |
16:31:25 |
14 Nov 1969 |
|
S-II apex. |
000:09:41.7 |
16:31:41 |
14 Nov 1969 |
|
S-IVB 1st burn cutoff. |
000:11:33.91 |
16:33:33 |
14 Nov 1969 |
|
S-IVB 1st burn maximum total inertial acceleration (0.69 g). |
000:11:33.99 |
16:33:34 |
14 Nov 1969 |
|
Earth orbit insertion; S-IVB 1st burn maximum Earth-fixed velocity. |
000:11:43.91 |
16:33:43 |
14 Nov 1969 |
|
Maneuver to local horizontal attitude started. |
000:11:54.2 |
16:33:54 |
14 Nov 1969 |
|
Orbital navigation started. |
000:13:15.1 |
16:35:15 |
14 Nov 1969 |
|
S-II impact (theoretical). |
000:20:21.6 |
16:42:21 |
14 Nov 1969 |
|
S-IVB 2nd burn restart preparation. |
002:37:44.50 |
18:59:44 |
14 Nov 1969 |
|
S-IVB 2nd burn restart command. |
002:47:15.10 |
19:09:15 |
14 Nov 1969 |
|
S-IVB 2nd burn ignition. |
002:47:22.80 |
19:09:22 |
14 Nov 1969 |
|
S-IVB 2nd burn cutoff. |
002:53:03.94 |
19:15:03 |
14 Nov 1969 |
|
S-IVB 2nd burn maximum total inertial acceleration (1.48 g). |
002:53:04.02 |
19:15:04 |
14 Nov 1969 |
|
S-IVB 2nd burn maximum Earth-fixed velocity. |
002:53:04.32 |
19:15:04 |
14 Nov 1969 |
|
S-IVB safing procedures started. |
002:53:04.6 |
19:15:04 |
14 Nov 1969 |
|
Translunar injection. |
002:53:13.94 |
19:15:13 |
14 Nov 1969 |
|
Maneuver to local horizontal attitude and orbital navigation started. |
002:53:24.4 |
19:15:24 |
14 Nov 1969 |
|
1st LH2 tank CVS open. |
002:54:20 |
19:16:20 |
14 Nov 1969 |
|
Cold helium dump start. |
002:54:55 |
19:16:55 |
14 Nov 1969 |
|
1st LOX tank NPV valve closed. |
002:57:05 |
19:19:05 |
14 Nov 1969 |
|
2nd LH2 tank latching valve open. |
003:04:00 |
19:26:00 |
14 Nov 1969 |
|
1st LH2 tank latching valve closed. |
003:08:03.9 |
19:30:03 |
14 Nov 1969 |
|
Maneuver to transposition and docking attitude started. |
003:08:05.0 |
19:30:05 |
14 Nov 1969 |
|
Cold helium dump stop. |
003:08:30 |
19:30:30 |
14 Nov 1969 |
|
1st LH2 tank CVS closed. |
003:09:05 |
19:31:05 |
14 Nov 1969 |
|
CSM separated from S-IVB. |
003:18:04.9 |
19:40:04 |
14 Nov 1969 |
|
TV transmission started. |
003:25 |
19:47 |
14 Nov 1969 |
|
CSM docked with LM/S-IVB. |
003:26:53.3 |
19:48:53 |
14 Nov 1969 |
|
Engine start-tank dump start. |
003:53:04.9 |
20:15:04 |
14 Nov 1969 |
|
Ambient repressurization helium dump start. |
003:53:05 |
20:15:05 |
14 Nov 1969 |
|
Cold helium dump start. |
003:54:00 |
20:16:00 |
14 Nov 1969 |
|
Ambient repressurization helium dump stop. |
003:54:07 |
20:16:07 |
14 Nov 1969 |
|
Engine start-tank dump stop. |
003:55:34.9 |
20:17:34 |
14 Nov 1969 |
|
2nd LH2 tank latching valve closed. |
003:56:35 |
20:18:35 |
14 Nov 1969 |
|
Cold helium dump stop. |
004:08:35 |
20:30:35 |
14 Nov 1969 |
|
CSM/LM ejected from S-IVB. |
004:13:00.9 |
20:35:00 |
14 Nov 1969 |
|
Observation and photography of two ventings from the S-IVB burner area started. |
004:19:20 |
20:41:20 |
14 Nov 1969 |
|
Maneuver to evasive attitude start. |
004:20:00 |
20:42:00 |
14 Nov 1969 |
|
Maneuver to evasive attitude stop. |
004:23:20 |
20:45:20 |
14 Nov 1969 |
|
1st APS evasive maneuver ignition/S-IVB stage control helium dump start. |
004:26:40 |
20:48:40 |
14 Nov 1969 |
|
Observation and photography of S-IVB ventings ended. |
004:26:40 |
20:48:40 |
14 Nov 1969 |
|
Cold helium dump start. |
004:26:41.2 |
20:48:41 |
14 Nov 1969 |
|
TV transmission ended. |
004:28 |
20:50 |
14 Nov 1969 |
|
1st APS evasive maneuver cutoff. |
004:28:00 |
20:50:00 |
14 Nov 1969 |
|
S-IVB APS ullage evasive maneuver started. |
004:28:01.4 |
20:50:01 |
14 Nov 1969 |
|
S-IVB APS ullage evasive maneuver ended. |
004:29:21.4 |
20:51:21 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - Propulsive LH2 vent (CVS). |
004:36:20.4 |
20:58:20 |
14 Nov 1969 |
|
S-IVB maneuver to lunar slingshot attitude for solar orbit initiated. |
004:36:21.0 |
20:58:21 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - LOX dump started. |
004:48:00.2 |
21:10:00 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - LOX dump ended. |
004:48:58.2 |
21:10:58 |
14 Nov 1969 |
|
2nd LOX tank NPV valve open. |
004:49:00 |
21:11:00 |
14 Nov 1969 |
|
3rd LH2 tank latching valve open. |
004:50:07.2 |
21:12:07 |
14 Nov 1969 |
|
Cold helium dump stop. |
004:50:50 |
21:12:50 |
14 Nov 1969 |
|
Engine control helium dump start. |
004:58:00 |
21:20:00 |
14 Nov 1969 |
|
Engine control helium dump stop. |
005:05:30 |
21:27:30 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - APS ullage ignition (planned). |
005:23:20.4 |
21:45:20 |
14 Nov 1969 |
|
Stage control helium dump stop. |
005:26:40 |
21:48:40 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - APS ullage cutoff. |
005:28:20.4 |
21:50:20 |
14 Nov 1969 |
|
Ground commanded APS ignition. |
005:29:10 |
21:51:00 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - APS ullage ignition (unplanned). |
005:29:13.2 |
21:51:13 |
14 Nov 1969 |
|
Ground commanded APS cutoff. |
005:33:40 |
21:55:40 |
14 Nov 1969 |
|
S-IVB slingshot maneuver - APS ullage cutoff. |
005:33:43.2 |
21:55:43 |
14 Nov 1969 |
|
S-IVB maneuver to communications attitude initiated. |
005:36:37.0 |
21:58:37 |
14 Nov 1969 |
|
LMP entered LM. |
007:20 |
23:42 |
14 Nov 1969 |
|
LM inspection. |
007:30 |
23:52 |
14 Nov 1969 |
|
LMP entered CM. |
008:10 |
00:32 |
15 Nov 1969 |
|
LMP entered LM. |
010:40 |
03:02 |
15 Nov 1969 |
|
LMP entered CM. |
010:50 |
03:12 |
15 Nov 1969 |
|
TV transmission started. |
030:18 |
22:40 |
15 Nov 1969 |
|
Midcourse correction ignition. |
030:52:44.36 |
23:14:44 |
15 Nov 1969 |
|
Midcourse correction cutoff. |
030:52:53.55 |
23:14:53 |
15 Nov 1969 |
|
TV transmission ended. |
031:05 |
23:27 |
15 Nov 1969 |
|
TV transmission started. |
062:52 |
07:14 |
17 Nov 1969 |
|
LMP entered LM. |
063:10 |
07:32 |
17 Nov 1969 |
|
LMP entered CM. |
063:45 |
08:07 |
17 Nov 1969 |
|
TV transmission ended. |
063:48 |
08:10 |
17 Nov 1969 |
|
Equigravisphere. |
068:30:00 |
12:52:00 |
17 Nov 1969 |
|
Rendezvous transponder activation and self-test. |
079:35 |
23:57 |
17 Nov 1969 |
|
System checks for lunar orbit insertion maneuver. |
082:00 |
02:22 |
18 Nov 1969 |
|
Lunar orbit insertion ignition. |
083:25:23.36 |
03:47:23 |
18 Nov 1969 |
|
Lunar orbit insertion cutoff. |
083:31:15.61 |
03:53:15 |
18 Nov 1969 |
|
TV transmission started. |
084:00 |
04:22 |
18 Nov 1969 |
|
TV transmission ended. |
084:33 |
04:55 |
18 Nov 1969 |
|
S-IVB closest approach to lunar surface. |
085:48 |
06:10 |
18 Nov 1969 |
|
System checks for lunar orbit circularization maneuver. |
086:30 |
06:52 |
18 Nov 1969 |
|
Lunar orbit circularization ignition. |
087:48:48.08 |
08:10:48 |
18 Nov 1969 |
|
Lunar orbit circularization cutoff. |
087:49:04.99 |
08:11:05 |
18 Nov 1969 |
|
LMP entered LM. |
089:20 |
09:42 |
18 Nov 1969 |
|
LM activation and checkout. |
089:45 |
10:07 |
18 Nov 1969 |
|
LM deactivation and LMP transferred back to CM. |
090:30 |
10:52 |
18 Nov 1969 |
|
LMP entered LM. |
103:45 |
00:07 |
19 Nov 1969 |
|
LM system checks. |
104:04 |
00:26 |
19 Nov 1969 |
|
CDR entered LM. |
104:20 |
00:42 |
19 Nov 1969 |
|
LM system checks. |
104:30 |
00:52 |
19 Nov 1969 |
|
LMP entered CM. |
104:40 |
01:02 |
19 Nov 1969 |
|
LMP entered LM. System checks. |
105:00 |
01:22 |
19 Nov 1969 |
|
TV transmission started. |
107:50 |
04:12 |
19 Nov 1969 |
|
CSM/LM undocked. |
107:54:02.3 |
04:16:02 |
19 Nov 1969 |
|
CSM/LM separation maneuver ignition. |
108:24:36.8 |
04:46:36 |
19 Nov 1969 |
|
CSM/LM separation maneuver cutoff. |
108:24:51.2 |
04:46:51 |
19 Nov 1969 |
|
TV transmission ended. |
108:30 |
04:52 |
19 Nov 1969 |
|
LM descent orbit insertion ignition (SPS). |
109:23:39.9 |
05:45:39 |
19 Nov 1969 |
|
LM descent orbit insertion cutoff. |
109:24:08.9 |
05:46:08 |
19 Nov 1969 |
|
LM powered descent engine ignition. |
110:20:38.1 |
06:42:38 |
19 Nov 1969 |
|
LM throttle up. |
110:21:05 |
06:43:05 |
19 Nov 1969 |
|
LM landing site correction initiated. |
110:22:03 |
06:44:03 |
19 Nov 1969 |
|
LM landing site correction entered. |
110:22:27 |
06:44:27 |
19 Nov 1969 |
|
LM landing radar altitude lock. |
110:24:00 |
06:46:00 |
19 Nov 1969 |
|
LM landing radar velocity lock. |
110:24:04 |
06:46:04 |
19 Nov 1969 |
|
LM “permit landing radar updates” entered. |
110:24:09 |
06:46:09 |
19 Nov 1969 |
|
LM state-vector update allowed. |
110:24:25 |
06:46:25 |
19 Nov 1969 |
|
LM “permit landing radar updates” exited. |
110:24:31 |
06:46:31 |
19 Nov 1969 |
|
LM abort guidance system altitude updated. |
110:26:08 |
06:48:08 |
19 Nov 1969 |
|
LM velocity update initiated. |
110:26:24 |
06:48:24 |
19 Nov 1969 |
|
LM X-axis override inhibited. |
110:26:39 |
06:48:39 |
19 Nov 1969 |
|
LM throttle recovery. |
110:27:01 |
06:49:01 |
19 Nov 1969 |
|
LM abort guidance system altitude updated. |
110:27:26 |
06:49:26 |
19 Nov 1969 |
|
LM approach phase entered. |
110:29:11 |
06:51:11 |
19 Nov 1969 |
|
LM landing point designator enabled. |
110:29:14 |
06:51:14 |
19 Nov 1969 |
|
LM landing radar antenna to position 2. |
110:29:18 |
06:51:18 |
19 Nov 1969 |
|
LM abort guidance system altitude updated. |
110:29:20 |
06:51:20 |
19 Nov 1969 |
|
LM redesignation right. |
110:29:44 |
06:51:44 |
19 Nov 1969 |
|
LM landing radar switched to low scale. |
110:29:47 |
06:51:47 |
19 Nov 1969 |
|
LM redesignation long. |
110:30:02 |
06:52:02 |
19 Nov 1969 |
|
LM redesignation long. |
110:30:06 |
06:52:06 |
19 Nov 1969 |
|
LM redesignation right. |
110:30:12 |
06:52:12 |
19 Nov 1969 |
|
LM redesignation short. |
110:30:30 |
06:52:30 |
18 Nov 1969 |
|
LM redesignation right. |
110:30:42 |
06:52:42 |
19 Nov 1969 |
|
LM attitude hold mode selected. |
110:30:46 |
06:52:46 |
19 Nov 1969 |
|
LM rate of descent landing phase entered. |
110:30:50 |
06:52:50 |
19 Nov 1969 |
|
LM landing radar data dropout. |
110:31:18 |
06:53:18 |
19 Nov 1969 |
|
LM landing radar data recovery. |
110:31:24 |
06:53:24 |
19 Nov 1969 |
|
LM landing radar data dropout. |
110:31:27 |
06:53:27 |
19 Nov 1969 |
|
LM landing radar data recovery. |
110:31:37 |
06:53:37 |
19 Nov 1969 |
|
1st photographic evidence of surface dust disturbed by descent engine. |
110:31:44 |
06:53:44 |
19 Nov 1969 |
|
LM premature low level fuel light on tank #2. |
110:31:59.6 |
06:53:59 |
19 Nov 1969 |