On Fri, 28 Apr 2000, Brian Webb wrote: > Apollo missions to the Moon used the following manuevers: > > 1. Launch into an Earth parking orbit. > 2. Trans Lunar Injection to send the vehicle toward the Moon. > 3. One or more mid-course corrections on the way to the Moon. > 4. Lunar Orbit Insertion maneuver to place the spacecraft in lunar orbit. > 5. Descent Orbit Insertion to lower the Command and Service Modules/Lunar > Module to a lower orbit. I believe that this was only done on Apollos 15, > 16, and 17. The DOI using the SM engine was done first on Apollo 14 and was planned for Apollo 13. After depositing the LM into the 10x60NM orbit, the CSM was moved back up to it's 60NM circular orbit. During Apollo 11 and 12 (and 10!), the LM descent engine was used to place the LM alone in the lower orbit. > 6. Powered Descent Initiation: Firing of LM engine to land LM on the Moon. > 7. LM Ascent: Takeoff from lunar surface and placement into lunar orbit. > 8. Trans Earth Insertion: Firing of SPS engine to leave lunar orbit and > return to Earth. > 9. One or more mid-course corrections on the way home. and.... 10. Re-entry. > > The magnitude of the various maneuvers varied from mission to mission. The > best source of info are the mission reports prepared by the Mission > Analysis and Planning Division at Johnson Space Center. They're probably in > the JSC technical library. Other good sources are the Apollo Lunar Surface Journal at: http://www.hq.nasa.gov/alsj/frame.html as well as the preflight press kits availabe in PDF format at: http://www-lib.ksc.nasa.gov/lib/Archives/PressKits.html > Regards, > > Brian Webb, KD6NRP Jim. Jim Scotti Lunar & Planetary Laboratory jscotti@pirl.lpl.arizona.edu University of Arizona Tucson, AZ 85721 USA http://www.lpl.arizona.edu/~jscotti/ ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
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