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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.
“Gray”3 pages
## CONFIDENTIAL considerable loss of lock approaching PDI. And we did have to reacquire manually several times. It looked like we had some oscillations in the yaw angle on the antenna. The alarm that we had was 500 and we went to descent 1 and proceeded in the computer and then went back to AUTO again on the landing radar switch. This was prior to ignition and the ground recommended that we yaw right 10 degrees. ALDRIN The rendezvous radar was on, not through the computer, but through its own AUTO track. ARMSTRONG We did not have the radar data feeding to the computer in the LGC position; but, apparently, if you have it in AUTO track, there's some requirement on the computer time. This is the way we've been doing it in all simulations. It was agreed on. We were in SLEW. Prior to this time, we'd been in AUTO track until such time as we started to lose lock in the pitchover. Then we went to SLEW, isn't that right? ALDRIN Are you talking about the program alarms during the descent? We've passed the point of having the rendezvous ## CONFIDENTIAL
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