Spacelog Apollo 13

Okay. You faded out at the very beginning, so please go through that again. We understand you don't get anything on MAIN B.

Okay, Vance. How are you reading now?

Okay. We're hearing you better. Stand by 1.

Okay, Jack. Please, repeat back now your conversation. You were cut out for—a while ago.

I don't have any idea where we cut out, Vance. I just said that we performed the procedure exactly as you say. We're down into the SEP critical portion to where I said, “select best OMNI.” However, we're not getting any MAIN BUS B voltage reading. I can read BAT BUS B, Baker, at 36.5; BAT Charlie at 37.0, but I have negative MAIN BUS B readings.

Okay. Stand by.

Okay, Jack. There are two—There's a switch and a circuit breaker that were positioned this morning that we'd like to have you check—Correction, just the switch. Panel 5, check your bus tie. MAIN BUS TIE BAT B/C on.

That is verified on. I checked that.

Okay.

Okay, Jack; this is Houston. Over.

Go ahead, Vance.

Okay. We're getting data from you, Jack, so that much looks good. On panel 5, request verification that EPS SENSOR SIGNAL circuit breaker is MAIN B. Over.

Okay.

Or it's —

— Stand by. —

— that MAIN B is closed.

Okay.

Okay, Jack. And, we see your MAIN BUS B voltage at 28-1/2.

Okay. You can see it. Good. Okay then. Okay, Vance. That circuit breaker is in.

Copy.

Well, Vance, if you're getting data from them, let me go back up there and finish the …

Okay, Jack. Please repeat, you're cutting out.

Okay, Vance. Okay. We just changed OMNIs here. I say, if you're getting data from us, that's the important thing. Let me go back up into the bedroom there and get the readings you wanted, so we can get this stuff powered down. Is that okay?

Okay, we'll get —

— by all means and —

— down there —

— select best OMNI —

— and then go back up.

Okay, Vance. We'll go back up—We've got voltage now, and we'll go back up and take the readings that you want.

Okay. And select best OMNI.

Okay. I'm going back up into the bedroom, Vance. How do you read?

Loud and clear.

Okay. I'm going back up to the bedroom. We'll select best OMNI and continue on with the procedure.

Roger.

Okay, Vance. Jim's up. How do you read?

Reading you loud and clear, Jim.

Okay.

And, Houston, I noticed through the AOT and through the overhead docking window that we are venting again.

Okay, Jim. Understand; the service module is venting.

That's affirm.

Aquarius, Houston.

Go ahead, Houston.

Jim, would you holler into the bedroom and tell Jack that when he has his onboard readouts that we wish he'd back—use the backout procedure and shut down again—per the procedure we gave him.

Roger. As soon as he—As soon as he gets his onboard readouts to use the powerdown procedure and shut down. Is that right?

That's affirm.

Okay. Jack just—Jack just told me that he's through, and he's going to go through the backout procedures again, the first one he's got is the shutdown.

Houston, Aquarius.

Go ahead, Aquarius.

Ready to copy, Jack.

BAT Charlie, 37.0; pyro A, 37.0; pyro B, 37.0; SPS helium pressure, 3450; and just for kicks, nitrogen A, 2300; nitrogen B, 2400; CM RCS injector temperatures: 5 Charlie, 4.5; 5 Dog, 3.5; 6 Alfa, 4.0; 6 Baker, 4.6; 6 Charlie, 4.0; 6 Dog, 3.8; battery manifold pressure, 4 Alfa, 1.4.

Okay, Jack, We got it. Thank you very much.

Okay. How does the telemetry look on our—on the old Odyssey?

It doesn't look too cold. Looks pretty good.

Okay. Thank you very much.

You bet.

We're going to need him.

How does it feel, Jack?

I'll tell you, Deke, it's cold up in there. I don't know whether we'll be able to sleep up there tonight; it must be about 35 or 40 degrees.

Roger. That's just what I was worrying about.

Right now, we're getting two sets of CWGs on.

It's not uncomfortable at all in Aquarius, but it definitely is cold in Odyssey.

Roger.

Okay, Vance. Jim's back on.

Go ahead, Jim.

We just had a change in watch; that's all.

Aquarius, Houston, Over.

Go ahead, Houston.

Jim, two items: in the command module, we wish to verify that the PYRO BATTERY selector was left in the main position. And we're ready to have the POWER AMP circuit breaker on panel 16 pulled, whenever you are ready.

Okay, Vance. Fred just tells me that he put it there, and we're checking that again about the PYRO BATTERY selector in the main position.

Okay. Understand that you are checking it.

And I will pull the POWER AMP circuit breaker.

Houston, Aquarius.

Go ahead, Jim.

How does number 2 battery look to you now?

Stand by.

Aquarius, Houston.

Go ahead.

Jim, it looks like it was probably a sensor problem; the battery number 2 is load-sharing well. And we see no indications of higher temperatures in the glycol loop or anything that would make us think that it is heating up.

Okay. Thank you.

Houston, Aquarius.

Roger. Go ahead.

I just want to talk over a little philosophy here. Fred told me that at one time you came up and told him that we were a little steep on the entry angle, and now our burn is going to make us—give us a steeper angle. I just want to make sure that we're all talking about the same thing, that, in essence, at this particular situation, we're shallow, are not steep, and we are going to increase the angle.

Jim, the situation is that, at the moment, we're a little bit shallow, and retrograde midcourse is going to put us more in the center of the corridor. Over.

Okay; fine. I just wanted to make sure. Fred had written down some time ago, that—that our angle now was about 71 and we were going to do a midcourse of 7 feet per second because its appears that we're going to shallow it out. I think we're all talking the same language now.

Roger. And, I guess it follows, but your perigee is a little bit high right now, too; so that will be bringing it back—back down, that is.

Yes. Yes, that's the important thing.

One other question, Jim. Our readings down here say your LM cabin's about as cold as the command module cabin. Is that right?

Well, we really don't know. There's usually two people in the LM cabin, and it's a lot—It seems to be a lot more compact, and so we don't notice the coldness down here as we do in the command module.

Houston, Aquarius.

Go ahead.

Some time ago, I copied down a long COMM midcourse-7 corridor control burn at a GET of 134:59:42.98. Is that burn pad still valid?