Preliminary Gemini 4 Crew Debriefing, Part II, 1965

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182
60~~FIDE~~TIAL
concerned, we got a little bit during the night
and just about nothing during the day.
We ran
also a sunrise and sunset check and we made the
long counts as indicated, and listened for any
return on all our HF tests from Thule and Elmendorf .
We could hear Elmendorf qalling us , but they were at
one time barely readable, and most of the time you
could hear somebody trying to call, but they
were very broken and difficult to read.
More
detailed data is in the Flight Data Book.
9.7 Orbit Navigation Check
McDivitt
Following the format in the debrief ing guide, I
think that the maps and overlays that we had
were excellent.
I f elt that the concept was a
very good concept. It gave us a good check on
where we were throughout the flight as far as
accurate times went.
We used at times the other
track charts that were printed before the flight .
We found that these were off some fair amount,
although they furnished good information also.
Once we had the time error that we could apply to
times listed on t he map, we found that we were
able to use t hese quite well also.
I think t hat
the map and t he overlays that we used in our