Flight of APOLLO11
I tried to collect the flight informations of Apollo11 in time series.
GET: Ground Elapsed Time
| Date | EVENT | DESCRIPTION | ||
|---|---|---|---|---|
| Jan,1968 | Flight hardware began arriving at KSC | |||
| Apl,14,1968 | Mated CSM,LM,SLA was moved to VAB | |||
| May,21,1968 | Moved to LC39 PAD A from VAB | It takes about 6 hour from VAB to LC39. Mobile Launcher No.1 was used for APOLLO11. | ||
| GET | EVENT | DESCRIPTION | ||
| T-93:00:00 | Precount period start | |||
| T-28:00:00 | Official countdown start | Jul.14.1969 17:30:00 | ||
| T-27:30:00 | Install launch vehicle flight batteries (to T-23:30:00) LM Stowage and cabin closeout (to T-15:00:00) |
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| T-21:00:00 | Top off LM super critical helium | (to T-19:00:00) | ||
| T-16:00:00 | Launch vehicle range safety checks | (to T-15:00:00) | ||
| T-11:30:00 | Install launch vehicle destruct devices Command/Service module pre-ingress operations |
(to T-10:45:00) | ||
| T-10:00:00 | Start mobile service structure move to park site | |||
| T-09:00:00 | Start six hour built-in-hold | 11 hour 32 minutes hold was actually carried out. | ||
| T-09 hours counting | Clear blast area for propellant loading | |||
| T-08:30:00 | Astronaut backup crew to spacecraft for prelaunch checks | |||
| T-08:15:00 | Start loading propellant thee stages | (to T-03:38:00) | ||
| T-05:17:00 | Flight crew alerted | |||
| T-05:02:00 | Flight crew medical examination | |||
| T-04:32:00 | Flight crew breakfast | |||
| T-03:57:00 | Flight crew don space suit | |||
| T-03:07:00 | Flight crew depart Manned Spacecraft Operations Building for LC39 | |||
| T-03:00:00 | Built-in countdown hold | 30 minutes hold was carried out. | ||
| T-02:55:00 | Flight crew arrive at LC39 | |||
| T-02:40:00 | Start flight crew ingress | |||
| T-01:55:00 | Mission Control Center-Houston/Spacecraft command checks | |||
| T-01:50:00 | Abort advisory system checks | |||
| T-01:46:00 | Space vehicle Emergency Detection System (EDS) test | |||
| T-00:43:00 | Retrack Apollo access arm to standby position (12 degrees) | |||
| T-00:42:00 | Arm launch escape system | |||
| T-00:40:00 | Final launch vehicle range safety checks | (to T-00:35:00) | ||
| T-00:30:00 | Launch vehicle power transfer test LM switch over to internal power |
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| T-00:20:00 | Shutdown LM operational instrumentation | (to T-00:10:00) | ||
| T-00:15:00 | Spacecraft to internal power | |||
| T-00:06:00 | Space vehicle final status checks | |||
| T-00:05:30 | Arm destruct system | |||
| T-00:05:00 | Apollo access arm fully retracted | |||
| T-00:03:10 | Initiate firing command (automatic sequencer) | |||
| T-00:00:50 | Launch vehicle transfer to internal power | |||
| T-00:00:8.9 | Ignition sequence start | |||
| T-00:00:02 | All engines running | |||
| GET | Altitude | Velocity | EVENT | DESCRIPTION |
| 00:00:00.0 | 182.7ft | 0ft/sec 0km/h |
Range Zero | Timer start. |
| 00:00:00.6 | 182.7ft | 0ft/sec 0km/h |
Lift Off Signal (TB-1) | Jul.16.1969 09:32:00.6 EDT(Eastern Daylight Time) |
| 00:00:12.4 | Pitch and Roll start | |||
| 00:00:31.1 | Roll Complete | |||
| 00:02:15.2 | 145600ft 44378m |
6504.5ft/sec 7137.2km/h |
S-IC Center Engine Cutoff (CECO)(TB-2) | |
| 00:02:40.0 | Begin Tilt Arrest | |||
| 00:02:41.6 | 217655ft 66341m |
9030.6ft/sec 9909.1km/h |
S-IC Outbord Engine Cutoff (OECO)(TB-3) | |
| 00:02:42.3 | 219984ft 67051m |
9064.5ft/sec 9946.3km/h |
S-IC/S-II Separation | Vehicle reached at 50.6nm downrange. |
| 00:02:43.0 | 221881ft 67629m |
9059.1ft/sec 9940.4km/h |
S-II Ignition (Engine start command) | |
| 00:03:12.3 | 301266ft 91826m |
9469.0ft/sec 10390.1km/h |
S-II Second Plane Separation |
S-II Aft. Interstage jettison. |
| 00:03:17.9 | 315001ft 96012m |
9777.6ft/sec 10728.8km/h |
Launch Escape Tower Jettison | |
| 00:07:40.6 | 588152ft 179269m |
18761.7ft/sec 20586.8km/h |
S-II Center Engine Cutoff | |
| 00:09:00 | S-IC falls into Atlantic Ocean | At about 340nm downrange (30.3 degrees North latitude 73.5 degrees West longitude) | ||
| 00:09:08.2 | 609759ft 185855m |
22746.8ft/sec 24959.6km/h |
S-II Outbord Engine Cutoff (TB-4) | |
| 00:09:08.2 | 609982ft 185923m |
22756.7ft/sec 24970.5km/h |
S-II/S-IVB Separation | At about 885nm downrange. |
| 00:09:09.2 | 610014ft 185932m |
22756.7ft/sec 24970.5km/h |
S-IVB Ignition (Engine start command) | 1st burn. |
| 00:11:39.3 | 617957ft 188353m |
25562.4ft/sec 28049.1km/h |
S-IVB Cutoff (TB-5) | |
| 00:11:49.3 | 617735ft 188286m |
25567.9ft/sec 28055.1km/h |
Earth Parking Orbit Insertion | At about 4818nm downrange. Stay at EPO for one and harf revolution (two and harf hour). Checking spacecraft systems and prepare for TLI. |
| 00:20:00 | S-II plunges into Atlantic Ocean | At about 2300nm downrange (31 degrees North latitude 33.6 degrees West longitude) | ||
| 02:34:38.2 | Begin S-IVB Restert Preparations (TB-6) | TLI start "Go for TLI" message came from Carnarvon Manned Space Flight Network station. Jul.16.1969 12:06:38.2 EDT |
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| 02:44:16.2 | 650558ft 198290m |
25554.0ft/sec 28039.9km/h |
Second S-IVB Ignition | |
| 02:50:03.0 | 1058809ft 322725m |
35562.9ft/sec 39022.5km/h |
Second S-IVB Cutoff (TB-7) | |
| 02:50:13.0 | 1103215ft 336260m |
35538.5ft/sec 38995.7km/h |
Translunar Injection (TLI) |
This maneuver was targeted for about 6fps overspeed.
This was conpensated by Spacecraft Evasive Maneuver later.
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| 03:17:-- | CSM/S-IVB Separation, SLA Panel Jettison | Start TD&E(Transposition,Docking and Ejection) operation. CSM leaves from SLA/S-IVB about 1fps, then 180 degree pitch maneuver. And 4 panels of SLA opend, LM comes to the sight. | ||
| 03:29:-- | CSM/LM Docking Complete |
CSM docks LM with S-IVB.
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| 04:17:13 | Spacecraft Ejection from S-IVB | |||
| 04:40:01 | Spacecraft Evasive Maneuver | By this, CSM's speed down about 19.7fps. And S-IVB leads to the moon and crashes in. But, S-IVB of APOLLO11 didn't reach the moon, and it was thrown in solar orbit. | ||
| Not available | S-IVB Slingshot Maneuver | Residual propellants dumped through the J2 engine. Not perofrmed at APOLLO11 mission. | ||
| Not Performed | Midcourse Correction-1 (MCC-1) | (TLI+9) | ||
| 26:44:58 | Midcourse Correction-2 (MCC-2) | (TLI+24) | ||
| Not Performed | Midcourse Correction-3 (MCC-3) | (LOI-22) | ||
| Not Performed | Midcourse Correction-4 (MCC-4) | (LOI-5) | ||
| 75:49:49.6 | 80nm above the Moon | Luner Orbit Insertion 1 Ignition (LOI-1) | At the behind of the moon, 80nm above, at pericynthion, this burn made retrograde velocity change of about 2924fps.
CSM/LM was inserted at elliptical orbit of apolune 170nm, periune 60nm.
Jul.19.1969 13:21:49.6 EDT |
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| 80:11:36 | 80nm above the Moon | Luner Orbit Insertion 2 Ignition (LOI-2) |
After two revolution, at pericynthion, this burn made retrograde about 157.8fps.
CSM/LM was inserted at circular orbit of apolune 65nm, periune 54nm.
After this, LM pilot enter LM and make a brief checkout then return to CM.
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| 100:13:38 | LM Undocking from CSM |
This was done after 13 revolution.
At that time, CSM orbit become 60nm circular.
LM undocked from CSM about 0.5fps.
LM went 40 feet from CSM and rotate, then CSM pilot checked development conditions of landing gear.
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| 100:39:50 | CSM Separation Maneuver | Radially downward 2.5fps burn makes LM leave after CSM. | ||
| 101:36:14 | LM Descent Orbit Insertion (DOI) | After harf revolution of undocking, at far side of the moon, after 2.2nm from CSM, LM does 74.2fps retrograde fire. Then LM entered Descent transfer orbit which pericynthion was 50,000feet. | ||
| 102:20:53 | LM Landing rader ON | |||
| 102:32:55 | 50,000 feet | LM Altitude of 50,000 feet | ||
| 102:33:04 | LM Powerd Descent Insertion (PDI) | At abouut 260nm prior to touchdown, this PDI was performed. At start of PDI, LM windows faced to the moon and DPS nozzle headed to flight direction. | ||
| 102:36:57 | 34ft/sec | LM Face-up yaw maneuver in process | LM yawed and windows up when reached 45,000feet. Landing radar was locked-on at about 39,000feet. It feed altitude data to guidance computer. | |
| 102:37:59 | 36ft/sec | LM Face-up maneuver complete | ||
| 102:38:22 | 35ft/sec | LM 1202 alarm(computer determined) | ||
| 102:38:45 | 35ft/sec | LM Enable radar updates | Radar altitude updates of the onboard computer were enabled. The altitude difference between that calculated by the onboard computer and that determined by the landing radar was approximately 2800 feet. | |
| 102:39:02 | 33ft/sec | LM 1202 alarm(computer determined) | ||
| 102:39:31 | 31ft/sec | LM Throttle recovery | The reduction in throttle was occurred at 386 seconds after ignition. | |
| 102:41:32 | 7129feet | 15ft/sec | LM Enter program P64 | At 7129 feet, arrival at high gate (end of braking phase) and the automatic switch to final approach phase program P64. |
| 102:41:53 | 5000feet | 12ft/sec | LM Attitude-hold | At about 5000feet, the Commander switched his control mode from automatic to attitude-hold to check manual control in anticiaption of the final descent. |
| 102:42:18 | 2500ft | 8ft/sec | LM 1201 alarm(computer determined) | |
| 102:42:43 | 4ft/sec | LM 1202 alarm(computer determined) | ||
| 102:42:58 | 4ft/sec | LM 1202 alarm(computer determined) | ||
| 102:43:22 | 2ft/sec | LM Enter program P66 | Enter manual landing phase. Landing phase starts at 500feet was called "low gate". Final vertical descent starts at about 150feet when horizontal movement becomes to zero. At that time, vertical speed was about 3fps. | |
| 102:45:43 | 0feet | 0ft/sec | Lunar Landing |
LM "Eagle" was landed at "Mare Tranquillitatis" 0:42:50 north latitude, 23:42:28 of east longitude.
This is the place called 'SITE-2' which one of three landing candidate points left to the end.
Jul.20.1969 16:17:43 EDT |
| Not Performed | CSM Plane Change Maneuver |
CSM intended to do 0.18 degree orbit change at 2.25 revolution after LM touch down.
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| 109:07:35 | Crew Egress for Lunar Surface Operations | |||
| 109:24:15 | Armstrong On Lunar Surface |
When he got off to the surface of the moon, samples for the emergency are collected first, and it is stored in the pocket of the spacesuit.
Then he opened and installed a S band antenna on the moon like an umbrella.
Jul.20.1969 22:56:15 EDT |
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| 109:43:15 | Aldrin On Lunar Surface | After setting TV camera and the Stars and Stripes, they begun picking of samples. Two sample return container (SRC) was filled with 130pounds of moon rocks and core tubes. Then they set Solar Wind Composition(SWC), Passive Seismic Experiment(PSE), Laser Ranging Retro Reflector(LRRR). | ||
| 111:29:39 | Aldrin Inside LM | |||
| 111:39:12 | Armstrong Inside LM:Hatch Closed | |||
| 124:22:00 | LM Liftoff | Ascent stage burn time was 7min 14sec. 6,055fps posigrade velocity change. LM lifted vertically at altitude 250feet, speed 50fps, then started 'pictch over' to enter 9nm x 45nm lunar orbit. LM entered the orbit at 166nm west downrange. | ||
| 125:19:35 | Coelliptic (Concentric) Sequence Initiate Maneuver (CSI) | By this maneuver and after CDH, LM entered 44.2nm x 45.5nm orbit, 15nm below CSM. | ||
| Not Performed | LM Plane Change Maneuver | This is maneuver for adjust a position with CSM. Not performed at APOLLO11 mission. | ||
| 126:17:46 | Constant Differential Height Maneuver (CDH) | |||
| 127:03:31 | Terminal Phase Initiate Maneuver (TPI) | LM entered 43.2nm x 61.2nm orbir. The orbit of CSM and LM crosses after about one half revolution. | ||
| 127:45:54 | Terminal Phase Finalize Maneuver (TPF) | Two orbit adjustment was planed before docking. And at last, this braking maneuver was performed. | ||
| 128:03:-- | CSM/LM Docking | |||
| 130:09:55 | LM Jettison | |||
| 130:30:00 | CSM Separation Maneuver | To avoid a collision with LM, about 1fps retrograde maneuver was done. | ||
| 135:23:42 | TransEarth Injection (TEI) | At the far side of the moon, SPS engine burned 2min 29sec to leave from moon orbit.
This made 3,293fps posigrade velocity change.
Jul.22.1969 00:55:42 EDT |
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| 150:29:55 | Midcourse Correction-5 (MCC-5) |
at TEI+15 hour
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| Not Performed | Midcourse Correction-6 (MCC-6) | at EI-15 hour | ||
| Not Performed | Midcourse Correction-7 (MCC-7) | at EI-3 hour | ||
| 194:49:19 | CM/SM Separation | Jul.24.1969 12:21:19 EDT | ||
| 195:03:06 | 400,000ft 121920m |
36194ft/sec 39715km/h |
Entry Interface (EI) | Start re-entry Earth atmosphere From about 400,000ft, spacecraft began a slowdown by the influence of atmosphere at 171.4 degree east longitude, 3.5 degree south latitude. It takes the acceleration of the maximum 6.35G during the slowdown. |
| 195:18:35 | Splash Down |
A parachute begins to open from about 23,000 feet altitude,
then splash down in about 1285nm east of the EI start point, that's speed was about 31fps .
The position was 172.4 degree west longitude, 10.6 degree north latitude, the southwest of Hawaii.
Jul.24.1969 12:50:35 EDT |
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