Spacelog Apollo 13

Okay. If I understand you correctly, then that gives me leeway to maneuver when we get up to activation complete, and we can be in position for the burn, but we will not burn. We don't have a pad anyway.

That's affirm, Jim. You could maneuver to burn attitude, or you could maneuver to an attitude which should put the Sun in the windows to warm the place up.

Sounds good, and you're sure we have plenty of electrical power to do this?

That's affirmative. We've got plenty of power to do it. I can get you a number, though.

Jim, you've got about 100-percent margins on everything from here on in.

That sounds encouraging.

Roger. That's in the LM. We're not talking about the CSM right now.

Houston, Aquarius.

Go ahead, Aquarius.

Okay. Question. This short turnon step 3 on page 24 has us only turning on the RCS SYSTEM A/B, two quads, and the breakers are still out on panel 11. Did you want those in, too, or are we just going to use one set of heaters?

Stand by.

Aquarius, Houston. Go as the checklist recommends for now. When you get into the circuit breaker panel configuration, you're going to get the number 1 set of heaters on anyway.

Right on.

Aquarius, Houston. One other way to warm things up in a hurry in there is when you get your AC on to turn on the window heaters.

Okay. I guess the only question I have is what it's liable to do to us with the—looks like almost a frost on it now.

Understand this, Jack. I'd like to let it maybe warm up just a little bit more before hitting it with the heat load.

Not a bad idea.

And, as you can see, Houston, at turnon we got our old friend downlink 2 back.

Aquarius, Houston. It looks like you're proceeding toward the gimbal lock there. We'd like you to check that, please.

Roger. Not much we can do about it. We can't use the thrusters, Houston.

And, Houston, Aquarius. I guess the next thing for the PGNS will be a coarse aline 000, but I guess we ought to hold up now until we get enough time on the RCS thrusters.

Aquarius, Houston.

Go ahead.

Roger. Did you get my GO for RCS?

That's affirm. We're GO. What we're doing now, Jack, is letting the spacecraft drift in this mode to pick up the Earth again.

Okay.

It's going to be interesting today, Jack. The Earth's a lot bigger; the crescent is a lot more pronounced than it was yesterday.

Well, you're going in the right direction.

That's right.

And, Jack, I guess we haven't changed our angle much with respect to the Sun 93 million miles away, so it ought to be in about the same place in the AOT, isn't that Charlie?

Hold 1 on that, Fred. I'll get an answer for you.

Okay.

Aquarius, your ASA is warmed up now. You can activate the AGS.

Aquarius, Houston. When you look out a detent 2 in the proper burn attitude, what you ought to see is the Sun at 12 o'clock, about halfway between the top of the AOT and the center of the pipper. And you ought to see the Earth —

Okay.

— at 6 o'clock.