Gemini 4 Experiment Debriefing, 1967

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.

ues. to which Chas . Matheus would like answers
1. Pictures wi 1 be taken befo1·e opening the hatch: (Before de-pressurization)
What will happen to the film when the hatch is opene ? ~d' I /
ff.r.d-)f 3 7 , /?
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2. During pressurization :
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rf- ow long can you use the film? 30 nins? or what? ~~t/e_ \}.J
3. Pressurization in cati~ :
After exposure to outside (outer space) and a very low ternp.(10 deg.F.),
how long will it take for the film to recover?
4. Will cold temp. cause problems with rolling the film? lill it break?
If one waited a period of time ~side capsule, how long would this be?
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