Spacelog Apollo 13

Okay, Joe. I have one more question, here. If we get a little bit ahead of time on the command module full powerup after we jettison the service module, I'd like to go to LM JETT attitude early, and make sure we get that part squared away and sit there for a while before LM JETT of 1 hour. Now, will we be using LM power up to that time? There's two cables which we'll probably have to disconnect on the way up through the tunnel if we're still going to use LM power?

That's affirmative. Let me get word on when we expect to go off LM power.

Aquarius, Houston.

Go ahead.

Roger. We expect to go off LM power at the time we start powering up the CSM or about minus 2-1/2 hours. That is not a hard number, and we'll be updating you on it. As far as going to the LM JETT attitude, that's completely permissible as soon as you have a powered up command module and a satisfactory platform, you can go there immediately. We're giving you a maximum of 1 hour just for grins. Over.

Okay. Fine. And that will be a LM maneuver, I assume, because we lost the service module, so no strain there.

Affirm.

And, Jack, would like to know what entry angle the midcourse-7 will give us?

Oh, it'll put us right in the middle of the corridor, Jim.

Okay.

6.50 degrees. And, Jim, Houston. I guess, as a last item, we expect that it will take us about an hour to update your checklist and your time lines sometime later on today, and we'd just like you to consider that. I expect it'll be 3 or 4 hours before we have all that stuff ready.

Okay. We'll be standing by for that, and now POWER AMPLIFIER switch is going to go off, and then we'll be going to DOWN VOICE BACKUP.

Aquarius, Houston.

Houston, Aquarius.

Aquarius, Houston. Go ahead.

Houston, Aquarius.

Roger, Jim. We're receiving you now. Go ahead.

Okay. I thought you were calling, but I guess we had a ground switching problem down there.

Yes. We lost the lock for a little while there, Jim. Well, good day. Could you give us battery A voltage … reading, please, and battery charger current, as you have been doing.

Okay, Vance. Stand by.

Okay.

Houston, Aquarius.

Go ahead, Jim.

Okay. Volts are 39.5; amps, 1.25.

Aquarius, Houston. Over.

Aquarius here. Go ahead, Houston.

Say, Jim. Could you give us another reading on the battery A voltage and BAT charger current on the CSM, please.

BAT amps coming up.

Okay. And sometime when you have some time to copy, I have an entry stowage list to give you which specifies which equipment will be moved between vehicles before splashdown.

Okay. I'm—I'll be able to copy that in a minute.

Houston, Aquarius.

Go ahead, Aquarius.

Volts, 39.4; amps, 1.25.

39.4, and say again amps.

1.25.

Roger. Copy. Thank you.

Okay, Vance. We're ready to cover—to copy the stowage list.

Go ahead.

Jim, would you give us PCM to HI bit rate. We think maybe we might be able to lock up on your high bit rate now. Over.

Aquarius, Houston.

Go ahead.

Okay, Jim. We're getting it intermittently. We think we might get it steady and improve circuit margins if you would, in addition, on panel 16, open the PRIMARY POWER AMPL circuit breaker, and I'll give you next step in a minute.

Okay. PRIMARY POWER AMPL is opened.

Okay. And on panel 12, POWER AMPL to PRIMARY.

POWER AMPL to PRIMARY.

Aquarius, 13.

Go ahead, Houston.

Or rather, Houston. Jim, it looks like we got a lockon, which is going to improve our data flow here. Only thing is, we'll probably lose data and probably voice, too, during a portion of each roll. So you might expect that. The other thing is, if anyone has on any BIOMED, would you switch your switch to—your BIOMED switch to that position.

Understand the first, Vance, and no one has on any BIOMED —

Okay.

— Fred and Jack are maneuvering things around right now, and mine is long since departed the scene.

Okay. Copy.

Vance, you might be interested—the way we're—the way we got this thing arranged, we have one helmet attached to the COMM lines attached to the LM hoses, and the guy that's got the duty wears the helmet, so the other people are free to maneuver.

Right. That's understandable. One guy's on the leash, huh?

Aquarius, Houston.

Go ahead.

Jim, when you get finished moving your stowage around and it's convenient, we'd like to terminate the battery charge for a little while to bring up the CM TM so we can take a look at the temperatures again, like we did yesterday. Advise that right now on your batteries, you have 111 amp-hours; and, eventually, we hope to have them up—peaked up to about 116. One other point, we—we can either read that procedure up again which involves cranking up the telemetry, or, if Jack still has it, we can use his notes and—but I have one or two changes to—to make on them. Over.

Okay, understand that you'll want us to terminate battery charge for a while, and crank up the CM TM to read out temperatures. And you have a few changes to Jack's checklist, and I'll turn the COMM over here to Jack shortly, as soon as he's finished, and we'll get along with it.

Houston, Aquarius.

Go ahead, Jim.

Just out of curiosity, Vance, what's our distance and velocity now?

Hey, stand by 1. You're speeding up, I think.

Jim, we have you 101 000 miles out, and your velocity is 5848. Starting to speed up.

Okay. Thank you.

Okay, Houston; Aquarius.

Go ahead, Jack.

Okay, Vance. Jim said that you want to terminate battery charge on battery A.

That's affirm, Jack. Request to—Before you terminate it, get the usual readout on voltage and current; and we'd also like a time of termination, and understand you have the termination procedures. Is that affirm?

Okay. That's affirm. Stand by. Let me just make sure I've got everything here before I go off on a tangent.

Okay, Jack, and your battery-charge termination procedure remains unchanged, but when we go to power up the CM and look at your TM, we have a couple of additional steps.