Documents / Official release

Preliminary Gemini 4 Crew Debriefing, Part II, 1965

National Aeronautics and Space Administration · 1965-06-09 · 290 pages · text from the file's own layer

This is a preliminary transcript of Part II of the Gemini 4 (GT-4) flight crew debriefing, prepared by NASA's Spacecraft Operations Branch, Flight Crew Support Division, and dated June 18, 1965. The debriefing began aboard the recovery ship USS Wasp and ended at the Manned Spacecraft Center. In it, astronauts McDivitt and White discuss how the spacecraft systems performed, including the platform, OAMS, RCS and control modes. They also cover operational checks, visual sightings, experiments, mission planning and training, and give recommendations for future crews.

From the source:Release of 2026-06-12 Incident: 6/9/65, North Atlantic Ocean. This document is a preliminary transcript (Part II) derived from voice recordings of the Gemini 4 flight crew debriefing taken aboard the recovery ship, USS Wasp, on June 9, 1965. Part II of this document contains the “Visual Sightings” section of the debriefing (pages 196-224), where astronauts James McDivitt and Edward White describe their observations while aboard the spacecraft.

  • p. 239 …y in the manner that was de.mon@trated but by holding on to one end…
McDivitt
White
223GO t'4 FI t, Et'4TI
close to measure. You know it would be just
pure luck if you kept measuring properly to it.
Yes, the thing of it all is that even if Ed
got himself calibrated so that he would always
measure the same angle between the star and the
horizor--it wouldn't be consistent between One
person and another. I'm not really sure how you
would ever go about measuring to this horizon
with any accuracy at all unless you had some way
that you could-instead of attenuating the light
build it up in some way and then filter out one
particular line that happened to be an extremely
sharp line . The horizon I like to measure to
best was the top of t he dense air glow layer with
no filter. The next horizon I liked was the top
of the dense air glow layer with the green filter.
I liked least of all the blue filter , because it
just completely eliminated the horizon .
Yes, I don ' t think the difference between. the
clear and the green was enough to argue over a
preference between . I thought maybe I had a
clearer one in the green, but I tended to take
far more measurements with the clear one, so
• CetctflDE~~TIAL-.s..~

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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 290 pages are in the text index: search them above, or from the library's search.