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.

Okay, Houston. We'd like to get a hack to set our mission timer here, Jack.

Okay, Fred-o. Set it at 133:35 straight up. You've got about 30 seconds to set it.

Okay. Standing by.

Okay. I'll give you the 2-second delay in there. Stand by to start.

START.

Okay. We've got it.

Okay. I'm counting 133:35:10.

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, something we're thinking about right now is, if we can do it without using a lot of RCS, it would be to our advantage timewise to try to get an alinement.

Okay. You mean a P52?

We're —

I'll … around.

A combination of 51 and 52.

I'll see what we can do, Jack.

Aquarius, Houston. On panel 16, we'd like for you to close the CROSS TIE BAL LOADS breaker, please.

Okay. It's closed.

And it looks like we could support a—an alinement in a few minutes, if you'd be willing to go ahead with that.

Jack, it sounds good. I think from our position here, we know where the Sun and Moon are and it's strictly going to be a pitch maneuver. But I think we can save some gas. I'll see what we can do.

Houston, Aquarius.

Go ahead, Aquarius.

We're all set to go. Are you going to ship us up a REFSMMAT?

Yes, we are. Stand by 1.

Okay.

The Sun feels wonderful. It's shining in the rendezvous window.

And, Aquarius, before we can ship you a load, we'll have to have, on panel 11, under COMM, the UPDATA LINK circuit breaker closed.

It's closed.

Roger. It'll be a few —

… closed … -

Okay. And it'll be a few minutes yet, Jim. We're still cranking it up.

Okay. Stay with it, Jack, and I'll go back to data.

Roger.

I got BAT in about 33-1/3 percent on that uplink. Too fast alarm.

Say again on that, Fred.

I just got another uplink too fast when I took the DATA switch back off—It's happening, I guess, about a third of the time.

Aquarius, Houston. We're ready with your load if you'll give us DATA please.

Aquarius, Houston. After the uplink, you'll have to set the drift and the REFSMMAT flag as on page 8 of the contingency book, steps 5 and 6.

Okay. Are you done with the computer now, Jack?

Negative. We'll give you the word.

Roger. Aquarius, we're through with it, it's your computer.

And, Aquarius, Houston; take option 1 on a P52 when you get to it. And I've got some ball angles for a Sun and Moon.

And have you got some plan in vectors for us, Jack?

Okay, Fred-o. For the Sun, I've got 246; for the Moon I've got 250.