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Gemini 4 Experiment Debriefing, 1967

National Aeronautics and Space Administration · 1965 · 224 pages · text from the file's own layer

This NASA file from 1965 combines Mission Operation Report M-913-65-04 on the Gemini 4 (GT-4) flight with related correspondence. Memoranda from the Associate Administrator for Manned Space Flight describe the planned four-day mission with James McDivitt and Edward White, including a spacewalk, a rendezvous with the booster second stage and thirteen experiments. Later letters and telegrams from NASA's Manned Space Science office concern the astronaut debriefing and requests for GT-4 photography and film for scientific analysis.

From the source:Release of 2026-06-12 Incident: June 3-7, 1965, Low Earth Orbit. Gemini IV was the second crewed mission of the Gemini series. Astronauts James McDivitt and Edward White successfully completed the four-day flight between June 3 and June 7, 1965. The mission included the first American spacewalk. This collection of documents contains a transcription of the astronauts recounting their observations of bright particles outside the spacecraft, dated circa June 25, 1967, on pages 78-81, and page 101.

  • p. 79 …I am rtL)t tal king about any .strange par Licles t hat appeared..... /\nd 11…
  • p. 91 …Are you t a king about micro-,eteor.i tes striki ng the No, I 'm…
  • p. 102 …befor e when you were t al king ab out the dayglow of what conclusion you…
  • p. 135 …said a hand-held gauge was wo1·king. Ground Control said the temperature reading made from…
Belt 17 2
It conti nued right on out .
You can s ee there was a fa i r amount of sun i n and out of the cockpit.
Quite a bit.
You could see all the dust particles . You can count the streamline on the
way out . .Maybe we 'll have a tou h on these last t wo experiments and then
ome back if there - just to make we touch on all the ...... the
radiation exp riment insicle the cabin. Is there any comment or question
that . . ... that this was the little ball .
Right . Ed White, why don't you ·omment on that?
Yeah1 t his is a fairly straightforward experiment in which I ' m sure the
people responsible that are f amiliar with it. It was a measuring device
in which we measured the spacecraf t radiati ons f or 1- minute periods of
time at 6 different spots of t he spacecraft and this we did at prescribed
times during the fli ght . A very straightforward experiment.
That ' s all the background ( up to) t his morning. Are t he re any questions
bout it The last one was the Hangd.ella Sexon experiment
We covered t his in great, great detail yesterday and I don ' t .
Did anybody br:l ' on tho. t cxpcrim •rrt;? I t hink it would be bett r if
y 'all ask ct. qu tJ ons on t because if we w nt through i t , it would take
about thr c hours . Do., anybody have any questions about it?
No, I think we got a very good thorough field for i t yesterday when we
went t hrough it in detail.
That leav s t he vi sual observations .
Ye s .
/\nd I know you we nt t h .ough tl1at y sterday a nd I listened carfully.
'I'hat ' ::i riefl t . W won ' t, have. to -

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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 224 pages are in the text index: search them above, or from the library's search.