Preliminary Gemini 4 Crew Debriefing, Part II, 1965

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to the pitch up rate and increased my rates to
something considerably above that , but then
as we came up into the Horizon Scanner Mode
dead.band, it started pulsing rapidly and
kil led off this rather l arge pitch rate and held
the spacecraft right in this attitude.
S~ we
had a very good acquisition of the mode from a
somewhat undesirable condit ion.
At the first
sunset the scanners were pointed right at the
sun but did not break lock.
We did not get
any scanner ignore lights at this time.
Later
on, at 17:04, about an hour later at sunrise,
the scanner ignore l ight came on with the space­
craft pointed in such a manner that the small end
of the spacecraft was pointed about 45 degrees
to the right of a line drawn directly between
the spacecraft and the sun.
So that., essential ly,
the sun was shining on the horizon scanners at
about a 45- degrell angl e.
The scanner ignore
lights stayed on for 10 or 15 seconds, and then
went out.
There were no false pulses from the
jets at all.
At 7: 55, just at sunset , again in
about the same position, I was 45 degrees to the
right of a l ine drawn between the spacecraft and
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