Spacelog Apollo 13

Okay. On panel 3: the first three steps we took care of; MODE, VOICE, to VOICE; POWER, SCE, OFF; POWER PMP to OFF; and S-BAND OMNI would go back to Bravo. Panel 225: FLIGHT BUS, MAIN B, will go open; and CB CTE, MAIN B, will go open.

That's affirm. The two circuit breakers on panel 250 will go open; the two circuit breakers, panel 275, will go open. Okay, the circuit breakers on panel 250, we took care of already. Panel 3: AC INVERTER, 2, we took care of. AC INVERTER 2, AC BUS 1 should now go OFF. And the remaining two switches on panel 3 we took care of. And “Select best OMNI” remains the same. Okay. Read back.

Okay. The two switches—two circuit breakers on panel 250 will go back to open; the two circuit breakers on panel 275 back to open; the POWER ENTRY/POSTLANDING circuit breaker, we already took care of earlier; AC INVERTER 2; we took care of earlier; AC INVERTER 2 to AC BUS 1 will go to OFF; and AC INVERTER, AC BUS 1, we took care of—No, that'll go to OFF; and UP TELEMETRY, COMMAND RESET will go OFF.

That's correct, Jack. Okay, that's it. And I think we're about ready to go with this procedure whenever you are.

Okay. First we got to go through that procedure to power the CSM from the LM, is that Charlie?

No. No, this is independent of power from the LM. This is a—this is purely a CSM —

Okay.

This is purely a CSM powerup so we can take a look at your telemetry and see how cold the vehicle is and that sort of thing.

Okay. It's going in work.

Okay, now I won't—I won't have any voice with you, so—Is that right? You don't want me to get connected up—you want me to just take these readings and come back and tell you what I have, huh?

That's affirm. There'll be no voice. And —

Okay. Okay. In work.

I—we presume, though, that there'll be somebody in the LM that we can call if we have to get word to you.

Oh, yes. There'll be somebody to be standing by, they'll run up into the bedroom and tell me to stop what I'm doing.

Okay, and let us know when you start.

Okay. I'm going to start right now, Vance.

Okay.

Aquarius, Houston.

Aquarius, Houston. Over.

Okay, Houston; Aquarius. Switching watches, and Jack's going up into the command module.

Okay, Jim. We have four steps here to give you to request that you get back on DOWN VOICE BACKUP, if you're ready to copy?

Ready to copy.

Okay. Bit rate to LO bit rate. VOICE, FUNCTION switch to DOWN VOICE BACKUP. POWER AMPs CB, open; RANGE FUNCTION switch in RANGING; that's verify.

Okay. Bit rate, LO; VOICE FUNCTION, DOWN VOICE BACKUP; POWER AMP S-BAND, open; and RANGE FUNCTION to RANGE; and that's a verify. And I still have the BIOMED on RIGHT here, so we don't have hot mike.

Okay. Thank you.

And, you want that in work, now?

That's affirm.

Okay.

Okay. Houston, Aquarius. How do you read?

Loud and clear, Jim.

Okay. I have a question for you, Houston, if you have time.

Sure, go ahead.

And I'm copying down the reestablishing—PTC maneuver that Charlie gave me. Step 5 was, “When rates are less than 0.05 degrees per second, ATTITUDE CONTROL YAW to PULSE.” And just how am I to get my rates down to 0.05 degrees per second. My—My rate indicator, at the best, is 0.1 of a degree.

Stand by.

Aquarius, Houston.

Go ahead.

Jim, this has been tried in the simulator by Charlie and others, and what they recommend is that you null your rates on the error needles until you see no movement whatsoever, and then wait another couple of minutes, and that should do it. That's the only way we can tell. Over.

Okay. I'll give it the old college try.

Okay. And if you can't attain that, why, of course, just the best you can do. We'll have to give it a try. Maybe it won't be quite like the simulator.

Okay, Houston; Aquarius.

Go ahead, Aquarius.

Okay, Vance. I've gone all the way through your procedure—all the way down to “Select best OMNIs,” but I'm not getting any MAIN BUS B voltage and this I don't understand.

Roger.

I can read—I can read BAT—BAT BUS B voltage at 36.5. …

Okay, Jack. Do you read now?

I am not sure, Vance.

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?