Gemini 5 Technical Debriefing, Part II, 1965

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you can see both stars passing under you and the
earth passing under you.
I can't figure how you
get all these odd refl ections in there. There's
a period of time when everything just gets completel y
jumbled and it's a real dim gray area there you're
going through just for a few seconds where you have
absol utely no visual reference at all.
You' re
doing beautifully on a night horizon on the airglow
and al l of a sudden "zunk" you're into this cottony
i ll-defined mess, and you 're getting all kinds of
odd refl ections and all kinds of odd l ight patterns,
and then "zoom" here you suddenl y have day reference
on the ground.
That period of time is a very poor
time to have to do any kind of out-the- window atti­
tude control .
And it obviously is a very confusing
l ight period because this is what confuses the hori­
zon scanners, t oo.
The times when you do get the- ­
when we had that one horizon scanner that was really
screwing up. It was overl y sensitive, of course,
and it woul d just drop out .
Every terminator we
went through it would drop off the line. And even
our no. 2 dropped off, initial ly there, a few times
going through the terminator.
You get a few ignores