Apollo 9 Timeline

 

 

Event

GET

(hhh:mm:ss)

GMT

Time

GMT

Date

Terminal countdown started.

-028:00:00

03:00:00

27 Feb 1969

Scheduled 3-hour hold at T-16 hours.

-016:00:00

15:00:00

27 Feb 1969

Decision made to recycle countdown to T-42 hours due to health of crew.

-016:00:00

15:30:00

27 Feb 1969

Countdown resumed at T-42 hours.

-042:00:00

07:30:00

01 Mar 1969

Scheduled 5-hour 30-minute hold at T-28 hours.

-028:00:00

21:30:00

01 Mar 1969

Countdown resumed at T-28 hours.

-028:00:00

03:00:00

02 Mar 1969

Scheduled 3-hour hold at T-16 hours.

-016:00:00

15:00:00

02 Mar 1969

Countdown resumed at T-16 hours.

-016:00:00

18:00:00

02 Mar 1969

Scheduled 6-hour hold at T-9 hours.

-009:00:00

01:00:00

03 Mar 1969

Countdown resumed at T-9 hours.

-009:00:00

07:00:00

03 Mar 1969

Guidance reference release.

-000:00:16.97

15:59:43

03 Mar 1969

S-IC engine start command.

-000:00:08.9

15:59:51

03 Mar 1969

S-IC engine ignition (#5).

-000:00:06.3

15:59:53

03 Mar 1969

All S-IC engines thrust OK.

-000:00:01.3

15:59:58

03 Mar 1969

Range zero.

000:00:00.00

16:00:00

03 Mar 1969

All holddown arms released (1st motion) (1.10 g).

000:00:00.26

16:00:00

03 Mar 1969

Liftoff (umbilical disconnected).

000:00:00.67

16:00:00

03 Mar 1969

Tower clearance yaw maneuver started.

000:00:01.7

16:00:01

03 Mar 1969

Yaw maneuver ended.

000:00:09.7

16:00:09

03 Mar 1969

Pitch and roll maneuver started.

000:00:13.3

16:00:13

03 Mar 1969

Roll maneuver ended.

000:00:33.0

16:00:33

03 Mar 1969

Mach 1 achieved.

000:01:08.2

16:01:08

03 Mar 1969

Maximum bending moment (86,000,000 lbf-in).

000:01:19.4

16:01:19

03 Mar 1969

Maximum dynamic pressure (630.73 lb/ft2).

000:01:25.5

16:01:25

03 Mar 1969

S-IC center engine cutoff command.

000:02:14.34

16:02:14

03 Mar 1969

Pitch maneuver ended.

000:02:38.0

16:02:38

03 Mar 1969

S-IC outboard engine cutoff.

000:02:42.76

16:02:42

03 Mar 1969

S-IC maximum total inertial acceleration (3.85 g).

000:02:42.84

16:02:42

03 Mar 1969

S-IC/S-II separation command and S-IC maximum Earth-fixed velocity.

000:02:43.45

16:02:43

03 Mar 1969

S-II engine start command.

000:02:44.17

16:02:44

03 Mar 1969

S-II ignition.

000:02:45.16

16:02:45

03 Mar 1969

S-II aft interstage jettisoned.

000:03:13.5

16:03:13

03 Mar 1969

Launch escape tower jettisoned.

000:03:18.3

16:03:18

03 Mar 1969

Iterative guidance mode initiated.

000:03:24.6

16:03:24

03 Mar 1969

S-IC apex.

000:04:26.03

16:04:26

03 Mar 1969

S-II engine cutoff.

000:08:56.22

16:08:56

03 Mar 1969

S-II maximum total inertial acceleration (2.00 g).

000:08:56.31

16:08:56

03 Mar 1969

S-IC impact (theoretical).

000:08:56.436

16:08:56

03 Mar 1969

S-II maximum Earth-fixed velocity.

000:08:56.45

16:08:56

03 Mar 1969

S-II/S-IVB separation command.

000:08:57.18

16:08:57

03 Mar 1969

S-IVB 1st burn start command.

000:08:57.28

16:08:57

03 Mar 1969

S-IVB 1st burn ignition.

000:09:00.82

16:09:00

03 Mar 1969

S-IVB ullage case jettisoned.

000:09:09.0

16:09:09

03 Mar 1969

S-II apex.

000:09:53.58

16:09:53

03 Mar 1969

S-IVB 1st burn cutoff.

000:11:04.66

16:11:04

03 Mar 1969

S-IVB 1st burn maximum total inertial acceleration (0.80 g).

000:11:04.74

16:11:04

03 Mar 1969

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

000:11:14.66

16:11:14

03 Mar 1969

Maneuver to local horizontal attitude started.

000:11:24.9

16:11:24

03 Mar 1969

Orbital navigation started.

000:12:47.7

16:12:47

03 Mar 1969

S-II impact (theoretical).

000:20:25.346

16:20:25

03 Mar 1969

Maneuver to transposition and docking attitude..

002:34:01.0

18:34:01

03 Mar 1969

CSM separated from S-IVB (command).

002:41:16.0

18:41:16

03 Mar 1969

Formation flying. CSM docked with LM/S-IVB.

003:01:59.3

19:01:59

03 Mar 1969

CSM/LM ejected from S-IVB.

004:08:09

20:08:09

03 Mar 1969

Maneuver to local horizontal attitude started.

004:25:05.1

20:25:05

03 Mar 1969

S-IVB 2nd burn restart preparation.

004:36:17.24

20:36:17

03 Mar 1969

S-IVB 2nd burn restart command.

004:45:47.20

20:45:47

03 Mar 1969

S-IVB 2nd burn ignition (for intermediate orbit insertion).

004:45:55.54

20:45:55

03 Mar 1969

S-IVB 2nd burn cutoff.

004:46:57.60

20:46:57

03 Mar 1969

S-IVB 2nd burn maximum total inertial acceleration (1.24 g).

004:46:57.68

20:46:57

03 Mar 1969

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

004:46:58.20

20:46:58

03 Mar 1969

S-IVB intermediate orbit insertion.

004:47:07.60

20:47:07

03 Mar 1969

Orbital navigation started.

004:47:14.2

20:47:14

03 Mar 1969

Maneuver to local horizontal attitude started.

004:47:18.6

20:47:18

03 Mar 1969

1st SPS ignition.

005:59:01.07

21:59:01

03 Mar 1969

1st SPS cutoff.

005:59:06.30

21:59:06

03 Mar 1969

Powered flight navigation started.

005:59:39.0

21:59:39

03 Mar 1969

S-IVB 3rd burn restart preparation.

005:59:40.98

21:59:41

03 Mar 1969

S-IVB 3rd burn restart command.

006:06:27.35

22:06:27

03 Mar 1969

S-IVB 3rd burn ignition (Earth escape trajectory).

006:07:19.26

22:07:19

03 Mar 1969

S-IVB 3rd burn maximum total inertial acceleration (1.69 g).

006:08:53.00

22:08:53

03 Mar 1969

S-IVB 3rd burn cutoff.

006:11:21.32

22:11:21

03 Mar 1969

S-IVB safing procedures started.

006:11:21.92

22:11:21

03 Mar 1969

S-IVB 3rd burn maximum Earth-fixed velocity.

006:11:23.50

22:11:23

03 Mar 1969

S-IVB escape orbit insertion.

006:11:31.32

22:11:31

03 Mar 1969

Orbital navigation started.

006:11:38.0

22:11:38

03 Mar 1969

Maneuver to local horizontal attitude started.

006:11:42.0

22:11:42

03 Mar 1969

S-IVB safing - LOX dump started (failed due to loss of engine pneumatic control during 3rd burn).

006:12:15.5

22:12:15

03 Mar 1969

S-IVB safing - LOX NPV valve latched open to safe LOX tank

006:24:02

22:24:02

03 Mar 1969

S-IVB safing - LH2 dump started (failed due to loss of pneumatic control of engine valves).

006:24:11.3

22:24:11

03 Mar 1969

S-IVB safing - APS depletion firing ignition.

007:34:04.6

23:34:04

03 Mar 1969

S-IVB safing - APS depletion firing cutoff.

007:41:53

23:41:53

03 Mar 1969

2nd SPS ignition.

022:12:04.07

14:12:04

04 Mar 1969

2nd SPS cutoff.

022:13:54.36

14:13:54

04 Mar 1969

3rd SPS ignition.

025:17:39.27

17:17:39

04 Mar 1969

3rd SPS cutoff.

025:22:19.15

17:22:19

04 Mar 1969

4th SPS ignition.

028:24:41.37

20:24:41

04 Mar 1969

4th SPS cutoff.

028:25:09.24

20:25:09

04 Mar 1969

Pressure suits donned.

041:00

09:00

05 Mar 1969

LMP entered LM.

043:15

11:15

05 Mar 1969

LM transferred to internal power.

043:40

11:40

05 Mar 1969

LM systems activated.

043:45

11:45

05 Mar 1969

CDR entered LM.

044:04

12:04

05 Mar 1969

Landing gear deployed.

045:00

13:00

05 Mar 1969

Portable life support systems prepared.

045:05

13:05

05 Mar 1969

CDR requested private communication regarding LMP illness.

045:39:05