Spacelog Apollo 13

Yes. Just stand by.

What'll it take to …

Yes.

You only got two … there, so …

I will.

You wouldn't believe it, but I'm now in command of the LM. Okay. Vance, I'm probably the only CMP that's ever witnessed a DPS burn sitting on the ascent engine head.

Did you get some? Is there any coming out still? They didn't answer. I think we made it. How's this working out?

Okay. No problem.

They are, huh? How are we going to get an alinement?

We'll pull one out someways, I guess. We've gotta watch that one right there.

It's decreasing now. It'll—it'll—It's cold. I noticed that in the command module. It'll wobble.

Houston, Aquarius.

Switch OMNIs to TRANSMIT.

Houston, Aquarius.

Go ahead, Aquarius.

Roger. Are you planned to set up here very shortly—a powerdown procedure?

That's affirmative, if you'll take out your contingency book and turn to page Power 6. Over.

Roger. Stand by. Contingency Power 6. Get the book over here. Contingency Power 6.

Well, I hope this …

And while you're doing that, let's put ATTITUDE CONTROL, three, switches to MODE CONTROL.

All three ATTITUDE CONTROL switches have been in MODE CONTROL.

Okay. And when you get to Power 6, you ought to see a circuit breaker page, panel 11.

Have a pencil? Let's see it—thank you.

Okay. I have Power 6, panel 11.

Okay. On Power 6, panel 11—The top three rows, configure them as you see them.

Okay, now, Jack … We have put the TCAs in for the previous procedure. Do you want those out, now?

That's affirmative, Jim, Pull them out. TCAs open.

Okay. I'm changing those to … back again. First three rows. And you're pulling the ATCA PGNS, huh?

That's affirmative. Pull ATCA PGNS open.

Okay. I've done that.

Okay. Are you ready for the fourth row?

Affirm.

Okay. Now when we get in the fourth row, we're going to open the IMU OPERATE circuit breaker; and what that means is that we're going to lose the capability to watch your CDUs, so we're not going to be able to see your attitude. Therefore, we will not be able to advise you on which antenna to select for communications. The way we want you to handle that is to turn the LM UPLINK SQUELCH off, and when you hear the noise, switch antennas. We'll be able to see you switch antennas, and it's going to take us about 3 to 5 minutes to establish a lockon again after you switch. After each time that you switch antennas, we will initiate a voice check. And basically when you see the Earth out the window, you can be on FORWARD antenna, and when the Moon's up in the window use the AFT antenna. You copy?

Okay. We're going to pull the IMU OPERATE circuit breaker, so you won't be able to see our attitude. Therefore, you won't tell us how to switch antennas and we'll enable the—I will turn the—up the SQUELCH OFF so that when we start getting any static, we'll switch antennas and as a thumb rule we could use—with the Earth forward, we use the FORWARD antenna and when we see the Moon we use the AFT antenna.

That's affirmative, Jim. In other words, we're leaving the antenna switching up to you, and after you switch antennas it's going to take 3 to 5 minutes for us to establish a lockon again, and we'll initiate a voice check. And I'm ready to go on panel 11, row 4.

Okay.

Okay. On row 14, under HEATERS RCS SYSTEM A/B-1: open QUAD 1 through 4; under ECS, the only change is—under GLYCOL PUMP close AUTO TRANSFER; under COMM, the only change is: open VHF A RECEIVER, open COMMANDER AUDIO; under PGNS, the only change is: close and leave closed IMU STANDBY circuit breaker, so we can have heaters. Read back.

Okay. On row 4, we're going to open all four of the heaters—the RCS SYSTEM A and B—the first four circuit breakers. We're going to close the AUTO TRANSFER. We're going to open the VHF A RECEIVER and the COMMANDER AUDIO. And we're going to close the IMU STANDBY. The LGC DSKY and the IMU OPERATE will be open.

That's affirmative, Jim. All other breakers in that row are as you see them in the checklist. And on row 5, the only change is that we want you to, under EPS, open ASCENT ECA CONTROL. Over.

Roger. I think we already have that opened—ASCENT ECA CONTROL is probably already open.

Okay. So let me confirm. We'll have one COMM system, that will be the LMP system, and we'll have to do our own antenna switching; therefore, we'll have to wait about—Okay, why don't you switch? Aft antenna.

We'll have to wait for you to get a lockon again. Is that correct?

That's affirmative, Jim. You'll be working off of the LMP's panel over there.

Okay. What else do you have for me?

Okay. Panel 16, that's on page Power-7. Top row, the only change is: under RCS SYSTEM B, open PQGS/DISPLAYS. Over.

Okay. I may go over this with you, Jack, because this checklist has been written over two or three times now on our various procedures. Top row, the first two are open, the next three are closed, and we're going to open now the QUAD TCA's 1, 2, 3, 4; CROSSFEED will be closed, and the TEMP/PRESS DISPLAYFLAG will be opened, and we're going to open up the PQCS, MAIN SOV will be closed, and the … will be opened.

Okay. We have DISPLAY, open; SE AUDIO, closed; VHF A TRANSMITTER, open; VHF B RECEIVER, open; POWER AMP's going to be open; TRANSMITTER/ RECEIVER, closed; S-BAND ANTENNA, open; PMP, closed; TV, open; DISPLAY is open; next three are open; CABIN REPRESS, closed; and all the rest closed.

That's affirmative, Jim. And in row 4, under HEATERS, we want them all—Correction—we want all the QUAD HEATERS open. Correction—we want all the QUAD HEATERS closed.

All the —

We want DISPLAY, open; S-BAND ANTENNA, closed—to avoid a MASTER ALARM, CAMERA—SEQUENCE CAMERA, open; And under EPS, we want DISPLAYs, open; DC BUS VOLT, closed; INVERTER 2, open; ASCENT ECA, closed; ASCENT ECA CONTROL, open; DESCENT ECA, closed; DESCENT ECA CONTROL, closed; TRANSLUNAR BUS TIE, close; we want the CROSS TIE BUS, open; the BAL LOADS, closed; BAT FEED TIEs, closed. How do you read?

Okay. The four RCS HEATERS will be closed; DISPLAYS, open; S-BAND ANTENNA, closed; CAMERA SEQUENCE will be open; DISPLAY will be open; DC BUS VOLT will be closed; INVERTER 2 open; ASCENT ECA will he closed, but the ASCENT ECA CONTROL, open; DESCENT ECA, closed; DESCENT ECA CONTROL, closed; TRANSLUNAR BUS TIE, closed; and CROSS TIE BUS, open; and BALANCE LOADS, closed; and the BAT FEED TIEs, closed. I have one question, Jack. On panel—on the second line there under LIGHTING, why are we keeping: the FLOODS and TRACK closed? Or are they going to be open?

Negative. We have the, LIGHTING breakers all closed. Control the lighting with the switches and rheostats. Over.

Okay. We don't need the floodlights, I don't think, but we can do it that way, I guess.

And under row 4, under RCS SYSTEMS A/B-2, QUAD HEATERS, you notice that we've closed those circuit breakers, but what we want you to do is to—on panel 3, turn the RCS A/B-2 QUAD switches 1, 2, 3, and 4, off. Over.

And we're going to watch your quad temps for you, and when we need to warm them up a little bit, we'll tell you to throw those four switches on—on panel 3.

Okay. Now are we sure that this PTC mode is good enough so we don't … get crossed up later and get out of configuration.

Stand by 1 on that, Jim. Okay, Jim, as far as we can tell right now, the PTC looks as good as any PTC we've ever seen in a CSM, so we're going to go with what we've got.

Okay.

Okay, and if you turn over the page on Power 8, we have the spacecraft functions remaining to you. We've got low bit rate TM. However, we don't have any VHF. We have CWEA. We have GLYCOL PUMPS. We have SUIT FANS. We have CABIN REPRESS for you, and stand by in ATTITUDE CONTROL here. Okay, in ATTITUDE CONTROL, we'll have hardovers for uses in emergency, and for normal usage we want to have a 15-minute delay to get the heaters on to warm them up be before use. How do you read?

Okay. For emergency, we have the hardovers and for normal use it requires a 15-minute request to get the heaters on.

That's affirmative.

Okay, Jim, that concludes our powerdown procedure, and we're waiting for you to get with it.

Okay, Jack, we'll start. I sure hate to lose the PGNS. I sure hope that procedure for the midcourse is a good one.

It is.

You want me to help you here?

Yes, you can—Okay. First we power down, panel 11. All of them open.

Closed.

Yes.

Stand by for a MASTER ALARM. …

Okay.

Here it comes.

LTG. You just did it.

I'll give you this when I'm finished. After we go through this, then you can go through it again and doublecheck it.

Right.

Now, the flood lights are on, right? No, I kind of don't think we need them though, do you?

Say, Houston; Aquarius.

Go ahead, Aquarius.

It will take him a minute to …

You're familiar with our particular spacecraft that on panel 16 HEATERS RCS SYSTEMS A and B, QUAD 1 HEATER circuit breaker has been pushed in, and sealed in, and if it's ever pushed out, it's doubtful if we'll ever be able to reset it.

Okay, Jim, on the four QUAD HEATER breakers, we want you to leave them closed. And we'll operate the heaters with the switches on panel 3. Over.

Okay.

No.

Okay. We'll do it right there.

Okay. And I'm closing the HEATERS on panel 4, QUAD 1 through 4, OFF.

Okay. It's time for you guys to get to bed and get Fred up.

(Laughter) I still have one question, Jack. I still think that—I still say that the—on the LIGHTING in our panel 16, the FLOOD lights and the TRACK should be open. We're not using them.

Do you have any argument about -

No problem, Jim. Go ahead and open them, TRACK and FLOOD, that's all right.

Okay, TRACK and FLOOD are OPEN.

Now, why don't you go through that, Jack, and make sure those —

Yes.

—

Okay, I'll take this.

Okay, Jack, my only other concern now is the CO₂ rise in the spacecraft. I guess you're keeping a handle on that?