Spacelog Apollo 11

Roger. Stand by just a moment. We've got to check some temperatures.

Up until last night it was—if anything, a little on the warm side at night. Last night it was on the chilly side.

Roger there. We'll run down the temperatures for the 2 nights.

Oh, it's no big thing. Just as a matter of interest.

Roger.

And how'd you like the command module RCS temperatures?

11, Houston. They all look very good. The lowest temperature was 40 degrees, and we're taking a look at your cabin temperatures now.

We agree on the CM RCS. No heaters are going 2 to be required by a country mile.

We think that's correct.

We don't like those heaters, anyway, working off the direct coils.

Roger.

Peculiar thing, Owen, on the platform alignment is that when I really take my time and do a very slow, careful, precise job of marking. I'm getting about the same star angle difference as when I'm doing it in DTC and have to do a hurried rush job with relatively poor tracking. Star angle differences seem insensitive. It almost made me believe there's a very small bias there somewhere in the sextant.

Roger, 11. Perhaps the 3 degrees per second just isn't that much of a bother. Over.

Well, he's really trying to explain why he can't get all zeros.

I think Buzz is probably right. As a matter of fact, one time I made a mark which I thought was a little bit in error, but I thought, “Well heck. I'll go ahead and see how it works out anyway,” and I got five zeros that time. And when I have thought everything was exactly precisely on, I have consistently been getting 0.01.

Roger. Apparently it pays to hurry.

I usually do.

The visibility through the telescope has been very poor. It's, I would say, even worse than the simulator is right now. It requires long periods of dark adaptation which most times are most inconvenient; so it's really a tremendous asset to keep the platform powered up at all times and to keep it tweaked within the capability of the sextant field of view.

Understand, Mike.

11, Houston. Checking your temperatures, it does look like the spacecraft may have cooled down perhaps 2 or 3 degrees in the last 24 hours, and that sounds to be consistent with your report on the comfort level there. Over.

Okay.

Is that a LM off phenomenon?

11, Houston. It looks like we'll have to think a little more about that, as to whether it's a LM off or some effect of being out of Lunar orbit. We don't know, so we'll have to puzzle before we can give a better answer.