Apollo 11 Translunar/Transearth Trajectory Chart

Transcript

1. APOLLO 11 TRANSLUNAR / TRANSEARTH TRAJECTORY PLOTTING CHART 12 hrs 1 day 1 day 12 hrs 2 days 2 days 12 hrs 6 days 6 days 12 hrs 7 days 7 days 12 hrs 8 days Launch Earth Orbit Translunar Injection Lunar Orbit Insertion (Jul 19) Transearth Injection (Jul 22) Lunar Landing (Jul 20) Lunar Lift-off (Jul 21) Entry Interface Splashdown TRANSLUNAR COAST TRANSEARTH COAST 50,000 100,000 150,000 200,000 (nautical miles) New Moon Jul 14 Jul 15 Position at Launch (Jul 16) Jul 17 Jul 18 Jul 23 Jul 24 Jul 25 Jul 26 Jul 27 Jul 28 Jul 29 Jul 30 Jul 31 Aug 1 Aug 2 Aug 3 Aug 4 Aug 5 Aug 6 Aug 7 Aug 8 Aug 9 Jul 13 This chart displays a polar view of the lunar mission profile for July 16, 1969. Translunar injection occurs over the Pacific Ocean in the vicinity of the Solomon Islands during the second revolution. The profile is typical of the Apollo 11 mission planned for July and August 1969. Each month contains three possible launch days with each day targeted to a specific Apollo landing site. Periodically, during the translunar coast phase, mid-course correction may be performed to maintain a circumlunar trajectory and ensure that the spacecraft will remain within a 60 nautical mile orbit above the moon. This orbit will be maintained by the Command Service Module (CSM) throughout the Lunar Module (LM) landing and lift-off phases. Midcourse corrections, if required, during the transearth coast phase will enable the spacecraft to approach the atmosphere at a proper velocity and angle for a safe re-entry. Elapsed time to flight from the translunar injection point is indicated during the translunar and transearth coast phases. Launch Dates July 16 July 18 July 21 Aug 14 Aug 16 Aug 20 Site No. 2 3 5 Site Coordinates 0°42.8'N 0°21.2'N 1°40.7'N 23°42.5'E 1°18.0'W 41°54.0'W Event Launch Earth Orbit Translunar Injection Translunar coast Lunar Orbit Insertion Lunar Landing Lunar Lift-off Transearth Injection Transearth coast Entry Interface Splashdown Time (EDT) July 16 9:32 July 16 9:43 July 16 12:16 July 16-19 July 19 13:21 July 20 16:17 July 21 13:54 July 22 00:55 July 22-24 July 24 12:39 July 24 12:50 Approximate flight time for a July 16, 1969 launch date is as follows: Launch to Translunar Injection Translunar Injection to Lunar Orbit Insertion Lunar Orbit Insertion to Transearth Injection Transearth Injection to Entry Interface Entry Interface to Pacific Ocean Touchdown Total Flight Time hrs 2 73 59 59 0 195 min 44 16 24 37 14 15