National Aeronautics and Space Administration (NASA) – Apollo 11 Flight Plan


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1. Launch and EPO (Duration 2:44) LIFT OFF - 2:44 GET

(a) Nominal launch time is 9:32 EDT, July 16, 1969, with a launch window duration of 4 hrs. 24 min,

(b) Earth orbit insertion into a 100 nm, circular orbit at 11 min. 43 sec. after lift-off

(c) CSM systems C/0 in earth orbit

(d) Optional IMU realign (P52) to the pad REFSMMAT during the first night period

(e) TLI occurs at 2:44:26 GET over the Pacific Ocean during the second revolution. (See Table 1-1 for burn data).

2. Translunar Coast (Duration 73:10) 2:44 - 75:54 GET

After TLI, which places the spacecraft in a free lunar return trajectory, the following major events occur prior to LOI:

(a) Transposition, docking and LM ejection, including SIVB photography

(b) Separation from SIVB and a CSM evasive maneuver

(c) SIVB propulsive venting of propellants (slingshot)

(d) Two series of P23 cislunar navigation sightings, star/earth horizon, consisting of five sets at 06:00 GET and five sets at 24:30 GET

(e) Four midcourse corrections which take place at TLI +9, TLI +24, LOI -22 and LOI -5 hours with DV nominally zero (See Table 1-1).

(f) Passive thermal control (PTC) will be conducted during all periods when other activities do not require different attitudes.

(g) LM inspection and housekeeping

(h) LOI1, performed at 75:54:28 GET, ends the TLC phase.

3. Lunar Orbit (Duration 59:30) 75:54 - 135:24 GET LOI Day (Duration 25:00) 69:00 - 94:00

(a) LOI1

(b) Photos of targets of opportunity

(c) LOI2

(d) Post LOI2 LM entry and inspection. S-Band/UHF B Voice tests will be conducted.

(e) Post LOI2 Pseudo landmark tracking (one set of sightings) (See Table 1-4)

(f) Rest period of 9 hours

DOI and EVA Day (Duration 28:00) 94:00 - 122:00 GET
(a) Docked LM activation and checkout

(b) Docked landing site landmark sighting (one set of sightings) (See Table 1-3)

(c) Undocking and separation

(d) DOI thru landing (See Figure 1-3 Powered Descent)

(e) LM post touchdown and simulated liftoff

(f) Rest period (LM) of 4 hours

(g) CSM plane change

(h) Rest period (CSM) of 4 hours

(i) EVA prep

(j) EVA for 2 hours 40 minutes

(k) Post EVA

(l) Rest period (LM) 4 hours 40 minutes

(m) Rest period (CSM) 4 hours 50 minutes

Ascent and TEI Day (Duration 25:00) 122:00 - 147:00 GET

(a) LM Lift-Off and Insertion

(b) LM active rendezvous

(c) Docking

(d) LM jettison

(e) TEI

(f) Rest Period

4. Lunar Orbit Particulars (Average Values for a 60 x 60 nm orbit)

(a) Revolutions start at 180° longitude

(b) Revolution duration - 1 hr. 58.2 min.

(c) S/C night period duration - 47 min.

(d) MSFN coverage per rev. - 72 min.

(e) Orbit inclination - 1.25° for July 16, 1969 launch

(f) S/C orbital rate - 3°/min. (.05°/sec)

(g) Lighting change at fixed ground point - 1°West/Rev.

(h) Horizon visibility ± 20° selenocentric angle on the lunar surface

(i) One lunar degree on lunar surface is 16.35 nm

(j) Site 2 will be visible (3° sun angle) at REV. 7

(k) S/C subvehicle point to horizon 327 nm.

5. Transearth Coast and Entry (Duration 59:39) 131:52 - 195:03 GET

Transearth coast begins with TEI at 135:24:34 GET and consists of the following major events:

(a) Three midcourse corrections are scheduled at TEI +15, EI -23 and EI -3 hours with DV nominally zero.

(b) CM/SM separation takes place at 194:51 GET and Entry Interface occurs at 195:03 GET.

(c) Splashdown will occur in the Pacific Ocean at a longitude of about 172.4° West at 195:17 GET. This will occur approximately 25 minutes prior to sunrise local time.

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