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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 10. 50 UPDATES FOR LIFT-OFF ALDRIN On P57 before lift-off, the Sun moved up in the field of view, as did all the rest of the stars. The Earth stayed the same. The Earth obscured the forward detent and the right detent. The Sun was now in the rear detent, and for some reason, it also obscured the left-rear detent, which was the one I was counting on using with Rigel. This was the one we had used before. I was quite surprised to discover this. The Sun was not within more than 15 degrees of the total field of view. It completely obscured the left-rear detent. It effectively left us two out of the six detents to pick stars from. Looking at those two detents, there weren't any stars near the center. The closer to the center of the detent you get the greater the accuracy is. The day before we had used Navi and it wasn't particularly bright. So I went back and now could use Capella, but it was fairly close to the edge of the field of view. So we did a gravity/one-star alignment and that first gravity alignment came up with 00010. VERB 32 gave us 00001. We used a sequence of marking that involved an onboard averaging of five successive cursive readings, followed by depressing the MARK button, and then five successive spiral readings that Neil would log down as I would read them off. Then he would ## CONFIDENTIAL
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