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Apollo 11 Technical Crew Debriefing, Volume 1 (scan)

NASA via ibiblio · 1969-07-31 · 251 pages · text by GLM-OCR

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.

  • p. 130 …it should go barberpole, it would go gray. Then, as you released, it would go to…
  • p. 178 …fade, and it began to be more gray. As we looked back as far as we…
  • p. 179 …ALDRIN When illuminated, it did have a gray appearance, very light gray. ARMSTRONG Wouldn't you…

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## CONFIDENTIAL

maneuver. That, I think, is peculiar with the particular landing site, but we were able to get high gain lockon. As a matter of fact, I could have gotten it before we made the pitch maneuver, but it didn't look like there was too much point in doing that.

As soon as we finished the pitch maneuver, we had high gain lockon and had it throughout the yaw maneuver. I was going to take some pictures with the 16-mm camera mounted on the bracket, but it looked like it was canted off to the side.

## ARMSTRONG

No comment at all on using the AGS for this versus the PGNS. We made a change from MAX deadband to MIN deadband. This to me is an open area.

We were in AGS, ATTITUDE HOLD, MIN deadband, and PULSE in the axis that we were maneuvering in. The separation attitude was not the attitude we had expected to be in as a result of some changes to the ephemeris at this point. In other words, Mike was separating on the local vertical, but that was not at the same inertial pitch angle that we expected to be at. It was off by about 10 degrees as I recall.

## CONFIDENTIAL

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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.