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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.
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## CONFIDENTIAL COLLINS (CONT'D) had to stop. We did P22 on crater 130 this time, and it was with half-jet authority because you'd unstowed your radar antenna. I had to deactivate two thrusters. P22 went just fine. ARMSTRONG Then you maneuvered to the AGS calibration attitude. COLLINS The AGS calibrate attitude held steady. As far as I know you were leisurely able to get a good AGS cal. ## 8.1.13 Undocking ARMSTRONG Undocking was one of the things that had to be done very carefully in order to avoid getting some muddled DELTA-V in the state vector from which we could never recover. The procedure that we used was one that was agreed upon within the last week or two before flight. It involved the LM getting up both P47 and the AGS during the undocking time and zeroing the DELTA-V's of the undocking. P47 was one that we chose to zero. As I remember, there was a little residual left in the AGS. Do you remember, Buzz? ALDRIN Yes. ARMSTRONG We went P47 to zero, and we still had a little left in the AGS. I can't remember whether it was 0.1 or 0.2. ## CONFIDENTIAL
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