Apollo 16 Timeline

 

 

Event

GET

(hhh:mm:ss)

GMT

Time

GMT

Date

Terminal countdown started.

-028:00:00

03:54:00

15 Apr 1972

Scheduled 9-hour hold at T-9 hours.

-009:00:00

22:54:00

15 Apr 1972

Countdown resumed at T-9 hours.

-009:00:00

07:54:00

16 Apr 1972

Scheduled 1-hour hold at T-3 hours 30 minutes.

-003:30:00

13:24:00

16 Apr 1972

Countdown resumed at T-3 hours 30 minutes.

-003:30:00

14:24:00

16 Apr 1972

Guidance reference release.

-000:00:16.963

17:53:43

16 Apr 1972

S-IC engine start command.

-000:00:08.9

17:53:51

16 Apr 1972

S-IC engine ignition (#5).

-000:00:06.7

17:53:53

16 Apr 1972

All S-IC engines thrust OK.

-000:00:01.9

17:53:58

16 Apr 1972

Range zero.

000:00:00.00

17:54:00

16 Apr 1972

All holddown arms released (1st motion) (1.08 g).

000:00:00.3

17:54:00

16 Apr 1972

Liftoff (umbilical disconnected).

000:00:00.59

17:54:00

16 Apr 1972

Tower clearance yaw maneuver started.

000:00:01.7

17:54:01

16 Apr 1972

Yaw maneuver ended.

000:00:10.9

17:54:10

16 Apr 1972

Pitch and roll maneuver started.

000:00:12.7

17:54:12

16 Apr 1972

Roll maneuver ended.

000:00:31.8

17:54:31

16 Apr 1972

Mach 1 achieved.

000:01:07.5

17:55:07

16 Apr 1972

Maximum dynamic pressure (726.81 lb/ft2).

000:01:26.0

17:55:26

16 Apr 1972

Maximum bending moment (71,000,000 lbf-in).

000:01:26.5

17:55:26

16 Apr 1972

S-IC center engine cutoff command.

000:02:17.85

17:56:17

16 Apr 1972

Pitch maneuver ended.

000:02:38.9

17:56:38

16 Apr 1972

S-IC outboard engine cutoff. Maximum total inertial acceleration (3.82 g).

000:02:41.78

17:56:41

16 Apr 1972

S-IC maximum Earth-fixed velocity.

000:02:42.5

17:56:42

16 Apr 1972

S-IC/S-II separation command.

000:02:43.5

17:56:43

16 Apr 1972

S-II engine start command.

000:02:44.2

17:56:44

16 Apr 1972

S-II ignition.

000:02:45.2

17:56:45

16 Apr 1972

S-II aft interstage jettisoned.

000:03:13.5

17:57:13

16 Apr 1972

Launch escape tower jettisoned.

000:03:19.8

17:57:19

16 Apr 1972

Iterative guidance mode initiated.

000:03:24.5

17:57:24

16 Apr 1972

S-IC apex.

000:04:30.973

17:58:31

16 Apr 1972

S-II center engine cutoff. S-II maximum total inertial acceleration (1.74 g).

000:07:41.77

18:01:41

16 Apr 1972

S-IC impact (theoretical).

000:09:07.136

18:03:07

16 Apr 1972

S-II outboard engine cutoff.

000:09:19.54

18:03:19

16 Apr 1972

S-II maximum Earth-fixed velocity.

000:09:20.0

18:03:20

16 Apr 1972

S-II/S-IVB separation command.

000:09:20.5

18:03:20

16 Apr 1972

S-IVB 1st burn start command.

000:09:20.60

18:03:20

16 Apr 1972

S-IVB 1st burn ignition.

000:09:23.60

18:03:23

16 Apr 1972

S-IVB ullage case jettisoned.

000:09:32.3

18:03:32

16 Apr 1972

S-II apex.

000:09:44.122

18:03:44

16 Apr 1972

S-IVB 1st burn cutoff and maximum total inertial acceleration (0.67 g).

000:11:46.21

18:05:46

16 Apr 1972

Earth orbit insertion. S-IVB 1st burn maximum Earth-fixed velocity.

000:11:56.21

18:05:56

16 Apr 1972

Maneuver to local horizontal attitude started.

000:12:07.8

18:06:07

16 Apr 1972

Orbital navigation started.

000:13:26.1

18:07:26

16 Apr 1972

S-II impact (theoretical).

000:20:02.390

18:14:02

16 Apr 1972

S-IVB 2nd burn restart preparation.

002:23:58.60

20:17:58

16 Apr 1972

S-IVB 2nd burn restart command.

002:33:28.50

20:27:28

16 Apr 1972

S-IVB 2nd burn ignition.

002:33:36.50

20:27:36

16 Apr 1972

S-IVB 2nd burn cutoff and maximum total inertial acceleration (1.42 g).

002:39:18.42

20:33:18

16 Apr 1972

S-IVB safing procedures started.

002:39:19.1

20:33:19

16 Apr 1972

S-IVB 2nd burn maximum Earth-fixed velocity.

002:39:20.0

20:33:20

16 Apr 1972

Translunar injection.

002:39:28.42

20:33:28

16 Apr 1972

Maneuver to local horizontal attitude and orbital navigation started.

002:41:50.3

20:35:50

16 Apr 1972

Maneuver to transposition and docking attitude started.

002:54:19.3

20:48:19

16 Apr 1972

CSM separated from S-IVB.

003:04:59.0

20:58:59

16 Apr 1972

TV transmission started.

003:10

21:04

16 Apr 1972

CSM docked with LM/S-IVB.

003:21:53.4

21:15:53

16 Apr 1972

TV transmission ended.

003:28

21:22

16 Apr 1972

CSM/LM ejected from S-IVB.

003:59:15.1

21:53:15

16 Apr 1972

TV transmission started.

004:10

22:04

16 Apr 1972

S-IVB yaw maneuver to attain attitude for evasive maneuver.

004:10:01

22:04:01

16 Apr 1972

S-IVB APS evasive maneuver ignition.

004:18:08.3

22:12:08

16 Apr 1972

S-IVB APS evasive maneuver cutoff.

004:19:28.5

22:13:28

16 Apr 1972

TV transmission ended.

004:20

22:14

16 Apr 1972

Maneuver to S-IVB LOX dump attitude initiated.

004:27:48.4

22:21:48

16 Apr 1972

Alternate (second) maneuver to LOX dump attitude.

004:31:09

22:25:09

16 Apr 1972

S-IVB lunar impact maneuver - CVS vent opened.

004:34:47.1

22:28:47

16 Apr 1972

S-IVB lunar impact maneuver - LOX dump started.

004:39:27.1

22:33:27

16 Apr 1972

S-IVB lunar impact maneuver - CVS vent closed.

004:39:47.1

22:33:47

16 Apr 1972

S-IVB lunar impact maneuver - LOX dump ended.

004:40:15.1

22:34:15

16 Apr 1972

Maneuver to attitude required for final S-IVB APS burn initiated.

005:30:37.2

23:24:37

16 Apr 1972

S-IVB lunar impact maneuver - APS ignition.

005:40:07.2

23:34:07

16 Apr 1972

S-IVB lunar impact maneuver - APS cutoff.

005:41:01.4

23:35:01

16 Apr 1972

S-IVB lunar impact maneuver - 3-axis tumble command initiated.

005:55:06.2

23:49:06

16 Apr 1972

Command to inhibit instrument unit flight control computer to leave S-IVB in 3-axis

   tumble mode.

 

005:55:37

 

23:49:37

 

16 Apr 1972

Crew reported stream of particles coming from LM.

007:18

01:12

17 Apr 1972

Unscheduled crew transfer to LM for system checks.

008:17

02:11

17 Apr 1972

TV transmission to give Mission Control a view of the particle emissions started.

008:45

02:39

17 Apr 1972

LM powered down.

008:52

02:46

17 Apr 1972

TV transmission ended.

009:06

03:00

17 Apr 1972

Electrophoresis demonstration started.

025:05

18:59

17 Apr 1972

Electrophoresis demonstration ended.

025:50

19:44

17 Apr 1972

Loss of S-IVB tracking data precluded exact determination of impact time and location

   within mission objectives.

 

027:09:59

 

21:03:59

 

17 Apr 1972

Midcourse correction ignition (SPS).

030:39:00.66

00:33

18 Apr 1972

Midcourse correction cutoff.

030:39:02.67

00:33:02

18 Apr 1972

LM pressurized.

032:30

02:24

18 Apr 1972

CDR and LMP entered LM for housekeeping and communication checkout.

033:00

02:54

18 Apr 1972

CDR and LMP entered CM.

035:00

04:54

18 Apr 1972

False gimbal lock indication.

038:18:56

08:12:56

18 Apr 1972

Visual light flash phenomenon observations started.

049:10

19:04

18 Apr 1972

Visual light flash phenomenon observations ended.

050:16

20:10

18 Apr 1972

CDR and LMP entered LM for housekeeping.

053:30

23:24

18 Apr 1972

CDR and LMP entered CM.

055:11

01:05

19 Apr 1972

Skylab food test.

056:30

02:24

19 Apr 1972

Equigravisphere.

059:19:45

05:13:45

19 Apr 1972

Scientific instrument module door jettisoned.

069:59:01

15:53:01

19 Apr 1972

Lunar orbit insertion ignition (SPS).

074:28:27.87

20:22:27

19 Apr 1972

Lunar orbit insertion cutoff.

074:34:42.77

20:28:42

19 Apr 1972

S-IVB impact on lunar surface.

075:08:04

21:02:04

19 Apr 1972

Descent orbit insertion ignition (SPS).

078:33:45.04

00:27:45

20 Apr 1972

Descent orbit insertion cutoff.

078:34:09.39

00:28:09

20 Apr 1972

CSM landmark tracking.

079:30

01:24

20 Apr 1972

Solar monitor door/tie-down release.

080:10

02:04

20 Apr 1972

CDR and LMP entered LM.

092:50

14:44

20 Apr 1972

LM activation and system checks.

093:34

15:28

20 Apr 1972

Terminator photography.

094:40

16:34

20 Apr 1972

LM undocking and separation.

096:13:31

18:07:31

20 Apr 1972

CSM landmark tracking.

096:40

18:34

20 Apr 1972

CSM checkout indicated no rate feedback and SPS engine gimbal Position indicator

   showed yaw oscillations. Planned circularization maneuver at 097:41:44 not performed.

 

097:40

 

19:34

 

20 Apr 1972

Rendezvous (CSM active).

100:00

21:54

20 Apr 1972

LM separation from CSM.

102:30:00

00:24

21 Apr 1972

CSM and LM platforms realigned.

102:40

00:34

21 Apr 1972

CSM orbit circularization ignition (SPS).

103:21:43.08

01:15:43

21 Apr 1972

CSM orbit circularization cutoff.

103:21:47.74

01:15:47

21 Apr 1972

LM powered descent engine ignition (LM DPS).

104:17:25

02:11:25

21 Apr 1972

LM throttle to full-throttle position.

104:17:53

02:11:53

21 Apr 1972

LM manual target (landing site) update.

104:19:16

02:13:16

21 Apr 1972

CSM landmark tracking.

104:20

02:14:20

21 Apr 1972

LM landing radar velocity data good.

104:20:38

02:14:38

21 Apr 1972

LM landing radar range data good.

104:21:24

02:15:24

21 Apr 1972

LM landing radar updates enabled.

104:21:54

02:15:54

21 Apr 1972

LM landing point redesignation phase entered.

104:24:14

02:18:14

21 Apr 1972

LM throttle down.

104:24:54

02:18:54

21 Apr 1972

LM landing radar antenna to position 2.

104:26:50

02:20:50

21 Apr 1972

LM approach phase program selected and pitchover.

104:26:52

02:20:52

21 Apr 1972

LM 1st landing point redesignation.

104:27:20

02:21:20

21 Apr 1972

LM landing radar switched to low scale.

104:27:32

02:21:32

21 Apr 1972

LM attitude hold mode selected.

104:28:37

02:22:37

21 Apr 1972

LM landing phase program selected.

104:28:42

02:22:42

21 Apr 1972

LM lunar landing.

104:29:35

02:23:35

21 Apr 1972

LM powered descent engine cutoff.

104:29:36

02:23:36

21 Apr 1972

Mission clock updated (000:11:48.00 added).

118:06:31

16:00:31

21 Apr 1972

CSM terminator photography.

118:20

16:14

21 Apr 1972

1st EVA started (LM cabin depressurized).

118:53:38

16:47:38

21 Apr 1972

Lunar roving vehicle (LRV) offloaded.

119:25:29

17:19:29

21 Apr 1972

LRV deployed.

119:32:44

17:26:44

21 Apr 1972

Far ultraviolet camera/spectroscope deployed.

119:54:01

17:48:01

21 Apr 1972

TV transmission started for 1st EVA.

120:05:40

17:59:40

21 Apr 1972

United States flag deployed.

120:15

18:09

21 Apr 1972

Apollo lunar surface experiments package (ALSEP) offloaded.

120:21:35

18:15:35

21 Apr 1972

CSM terminator photography.

120:30

18:24

21 Apr 1972

CSM Gum nebula photography.

121:20

19:14

21 Apr 1972

ALSEP deployed, deep core sample gathered, and LRV configured for traverse.

122:55:23

20:49:23

21 Apr 1972

Departed for station 1.

122:58:02

20:52:02

21 Apr 1972

CSM zodiacal photography.

123:00

20:54

21 Apr 1972

CDR reported bright flash on lunar surface.

123:09:40

21:03:40

21 Apr 1972

Arrived at station 1. Performed radial sampling, gathered rake and documented samples,

   and performed panoramic and stereographic photography.

 

123:23:54

 

21:17:54

 

21 Apr 1972

Departed for station 2.

124:14:32

22:08:32

21 Apr 1972

Arrived at station 2. Performed a lunar portable magnetometer measurement, gathered

   samples and performed panoramic and 500 mm photography.

 

124:21:10

 

22:15:10

 

21 Apr 1972

Departed for ALSEP site (station 3/10).

124:48:07

22:42:07

21 Apr 1972

Arrived at station 3/10. Performed “grand prix” with LRV, retrieved core sample, armed

   the active seismic experiment mortar package, and departed for LM.

 

124:54:14

 

22:48:14

 

21 Apr 1972

Arrived at LM. Deployed solar wind composition experiment, gathered samples,

   performed photography, and started EVA closeout.

 

125:05:09

 

22:59:09

 

21 Apr 1972

Solar wind composition experiment deployed.

125:07:00

23:01

21 Apr 1972

TV transmission ended for 1st EVA.

125:35

23:29

21 Apr 1972

1st EVA ended (LM cabin repressurized).

126:04:40

23:58:40

21 Apr 1972

CSM ultraviolet photography.

126:20

00:14

22 Apr 1972

CSM Gegenschein calibration.

127:00

00:54

22 Apr 1972

CSM orbital science visual observations.

128:00

01:54

22 Apr 1972

LM crew debriefing.

128:20

02:14

22 Apr 1972

CSM terminator photography.

128:30

02:24

22 Apr 1972

CSM orbital science visual observations.

129:25

03:19

22 Apr 1972

CSM orbital science photography.

130:00

03:54

22 Apr 1972

CSM terminator photography.

131:20

05:14

22 Apr 1972

CSM Gegenschein photography.

142:30

16:24

22 Apr 1972

2nd EVA started (LM cabin depressurized).

142:39:35

16:33:35

22 Apr 1972

LRV prepared for traverse.

142:49:29

16:43:29

22 Apr 1972

TV transmission started for 2nd EVA.

142:55

16:49

22 Apr 1972

Departed for station 4.

143:31:40

17:25:40

22 Apr 1972

Arrived at station 4. Performed penetrometer measurements, gathered samples, obtained

   a double core tube sample, gathered a soil trench sample, and performed 500 mm and

   panoramic photography.

 

 

144:07:26

 

 

18:01:26

 

 

22 Apr 1972

CSM deep space measurement.

144:45

18:39

22 Apr 1972

Departed for station 5.

145:05:16

18:59:16

22 Apr 1972

Arrived at station 5. Gathered samples, performed lunar portable magnetometer

   measurement, and performed panoramic photography.

 

145:10:05

 

19:04:05

 

22 Apr 1972

CSM orbital science photography.

145:35

19:29

22 Apr 1972

Departed for station 6.

145:58:40

19:52:40

22 Apr 1972

CSM orbital science visual observations.

146:05

19:59

22 Apr 1972

Arrived at station 6. Gathered samples and performed panoramic photography.

146:06:37

20:00:37

22 Apr 1972

Departed for station 8 (station 7 deleted).

146:29:18

20:23:18

22 Apr 1972

Arrived at station 8. Gathered samples, obtained a double core tube sample, and

   performed panoramic photography.

 

146:40:19

 

20:34:19

 

22 Apr 1972

CSM terminator photography.

147:15

21:09

22 Apr 1972

Departed for station 9.

147:48:15

21:42:15

22 Apr 1972

Arrived at station 9. Gathered samples, obtained single core tube sample, and performed

   panoramic photography.

 

147:53:12

 

21:47:12

 

22 Apr 1972

Departed for station 10.

148:29:45

22:23:45

22 Apr 1972

Arrived at station 10. Gathered samples, performed penetrometer measurements,

   obtained a double core tube sample, and performed panoramic photography.

 

148:54:16

 

22:48:16

 

22 Apr 1972

CSM solar corona photography.

149:05

22:59

22 Apr 1972

Departed for LM.

149:21:17

23:15:17

22 Apr 1972

Arrived at LM and started EVA activity closeout.

149:23:24

23:17:24

22 Apr 1972

TV transmission ended for 2nd EVA.

149:40

23:34

22 Apr 1972

2nd EVA ended (LM cabin repressurized).

150:02:44

23:56:44

22 Apr 1972

CSM photography of mass spectrometer boom.

153:05

02:59

23 Apr 1972

CSM orbital science visual observations.

153:40

03:34

23 Apr 1972

CSM terminator photography.

154:20

04:14

23 Apr 1972

CSM orbital science photography.

155:05

04:59

23 Apr 1972

CSM bistatic radar test started.

155:20

05:14

23 Apr 1972

CSM bistatic radar test ended.

156:00

05:54

23 Apr 1972

CSM mass spectrometer retraction test started.

165:30