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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.
“Low Earth orbit”2 pages
Read from the scan by GLM-OCR; expect the odd misread word.
## CONFIDENTIAL
COLLINS (CONT'D) then the other waiting for something. There was a time in the pad when the star check was only valid after 11 past the hour.
ALDRIN That appears at some time. I don't see that written on this particular set up.
ARMSTRONG I might mention on the sextant star checks that, on most occasions, we manually drove the optics CDU's to the ground-computed values for the star and checked the attitude in that manner. That always worked for us. We were always able to see the star in the sextant field of view by manually guiding the optics rather than using the computer to designate the optics.
## 7.3 SPS BURN FOR LOI-1
ARMSTRONG Now we will go up to LOI. LOI was on time, and the residuals were very low. Again we saw a large value of DELTA $ V_{C} $ 's — 6.8. Buzz will now comment on the PUGS.
ALDRIN We had been briefed on the experiences that Apollo 10 had had with the operation of the PUGS oxidizer blow valve, whereby they had responded to the initial decrease that the system gave them by placing the switch to DECREASE. Subsequently, it went to INCREASE. They followed it but were never able to catch up with it. It was suggested to us that the best procedure was to monitor this in the first 25 seconds, again expect it to be in DECREASE, and CONFIDENTIAL Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 251 pages are in the text index: search them above, or from the library's search.