Documents / Document
This is Volume 1 of NASA's Apollo 11 Technical Crew Debriefing, dated July 31, 1969. The Mission Operations Branch of the Flight Crew Support Division at the Manned Spacecraft Center in Houston prepared it, and it was originally classified Confidential. In it Armstrong, Aldrin and Collins go phase by phase through suiting, launch, powered flight, Earth orbit and lunar surface activities. They comment on suit fit, vibration, checklists, lunar dust, footing and poor sleeping conditions in the lunar module. A section titled Visual Sightings appears in the table of contents.
# CONFIDENTIAL antenna away from the stops. Once you drive it to those values, then you'd have to set in new numbers. Coming around on the other side, you'd maybe switch from aft to forward to pick up the ground. Once you picked them up, you'd switch over to SLEW and you might have the right values down there or you might have to tweak them up. In any event, the initial contact would be made on one antenna; and then, after you establish contact, you'd have to take the chance of breaking it to switch over to the high gain. Occasionally, we got the jump on them a little bit because the ground was talking to the command module. We saw that we had signal strength so I'd go ahead and try to lock on the S-band. It is a rather involved process that you have to go through. I didn't find that, if you left the antenna without an auto lockon signal, it would have a tendency to drive to the stops. At least from the indications, it didn't seem to be moving so rapidly that you couldn't, within several seconds if you knew what you were doing, stop it from where it was going and prevent it from hitting the stops. We had two methods of computing altitude: one based on relative motion from the CSM and the other based on ## CONFIDENTIAL
Document, cited by the archive. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 251 pages are in the text index: search them above, or from the library's search.