Gemini 4 Experiment Debriefing, 1967

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You see the big problem is finding these things.

In looking for objects on the ground and things like that you just don't find them 500 miles in front of you.

How about something in the sense of a target of opportunity? You see it without advanced warning.

I would think you'd have on the order of a minute or 80 seconds maybe to study it if you have your (equipment) already mileaged if you wanted to look at it you've got to aim the spacecraft as it, say.

Aiming the spacecraft at it is not difficult. If you've got a field to do if, you can track right on a point. If you say a thunderstorm, say, off to your left, you could maneuver the spacecraft around there and just keep pointing at it as it went by.

About how many miles would 60 seconds - 80 seconds - . . . .

Well of course 25° down . . . . . . 45° down -

That's about 80 seconds.

That's 80 seconds, roughly.

That's right. For the (normal) altitude

So, you can figure that out in miles, but-

I've got a whole set of data if you want it for various altitudes on just this type of (answer).

You've provided enough-

And I think you can probably see it from the 30° down below the horizon 45° down - you might be able to start seeing these things

I think you can get a real good feeling for it if you'd take a look at some of the tracking film on which we looked for an object on the ground,

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