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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
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## CONFIDENTIAL But these two are coupled together. It's tied to the tracking and to the tunnel closeout. We had already had the platform up and it had been aligned to the command module's platform, so I went through the AGS initialization update. I knew that we didn't have a state vector, so there wasn't any point in putting the state vector in. I was smart enough at that point to recognize this and I knew that the state vector was coming up later. But I thought, "Well, there's nothing to stop me from aligning the AGS platform to the PGNS platform," so I did this and immediately looked at the AGS ball and it was way out in left field. It didn't agree to the PGNS ball at all, and it took me about 5 minutes or so to try and figure out why this was. I finally realized that the reason for it was that the PGNS didn't have a REFSMMAT, and its computer didn't know where its platform was. Even though the platform was in the right spot, it didn't have any reference system so it couldn't tell the AGS what its platform ought to be. The AGS platform, in terms of the command module, is in the forward plane. The PGNS didn't know this. ## CONFIDENTIAL
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