Spacelog Apollo 13

Standing by for the 88-hour time hack.

Okay. We got a minute to go.

Okay. Coming up on the 88-hour mark. I'll give you a 2-second delay. Stand by to mark.

MARK.

How are you doing, Jim?

Pretty good, Jack. Say, you might have the people look at our DPS burn card to see what changes have to be made on it for the burn.

Heard you say look at the DPS burn; you'll have to say what about it again, please.

Roger, Jack. You might take a look at our DPS burn card, our checklist card that we have in the LM, and see what changes might have to be put in that checklist.

How're you doing there, Jim?

Okay, Jack. It appears that we're going—funny diversion here, the PTC attitude in—in pitch. I'm going to do a LPD check now, but the last time the Moon went around, it was above—way away above the LPD angle and I see the Earth coming around now which is going to be pretty low. They oscillate back and forth, but each time they seem to get a little farther away from the center line. You might think of some procedure to reestablish PTC, if it's necessary.

Okay.

Jim, the only way we know of getting the as good or a better PTC than you've got right now is to crank up the G & N and we—We don't want to do that. So our plan is to just take whatever we get out of this, and later on, it may turn out by the time you get to burn attitude, you'll be right where you want to be.

Houston, Aquarius.

Go ahead.

What's our course of action to set up PTC after this midcourse at 107?

We thought you'd ask that.

The only thing we can try to do, Jim, is to get the thing up manually and see what happens. There must be a better answer than that —

Okay.

— and one course of action is to omit the midcourse and make a total midcourse, say, about 8 hours before entry. We haven't decided yet.

Right now we're talking about a 7-foot-per-second midcourse at 104 hours. And extrapolate that down to about 8 hours before entry. We gave you a pad for that—that's about, only 19 feet per second, so if it doesn't change too much—and we can get all kinds of DPS.

Houston, Aquarius.

Go ahead, Aquarius.

Can you think of any normal venting phenomena that might occur like maybe—a hydrogen tank that's over-pressurized relieving in the window?

Yes, we thought of that, Jim.

That is one possibility that we've though of, Jim, because—We heated up that tank, and we haven't been using any hydrogen and, therefore, it could be venting in the overboard release.

Right. The only other thing I can think of when I look at it through the AOT is—it did appear to be coming from one spot; but that's the only difference although I can't see where it is coming from because it's beyond the curvature of the command module. But, it appears like it might be coming from more than this one spot.

Okay. Thank you. We hope that when we crank up the command module tomorrow that we'll be able to—or later on today—that we will be able to identify more closely what it's been coming from. But, the guidance guys say that they haven't been able to see the results of any venting in their data and it would take a very, very small amount to perturb their data.

Well, that's a note of encouragement.

(Music)

You got a Chinese band going up there?

Oh, sorry. I forgot all about hot mike.

Go ahead, Jim.

Okay. That's two lithium hydroxide canisters, one roll of that special gray tape, two LCGs which we're going to use the bags from, one LM cue card and …

Okay. That's affirmative, Jim. If you'll just cut the cue card, which is a handy piece of stiff paper the right size, about an inch and a half from the rings. Just cut off the ring holes, in other words, and you'll have a card about 11 inches long and probably 6 inches wide, something like that.

Okay, … I'll have Jack gather up the stuff.

Okay.

… that roll of gray tape.

… Okay. … and … plastic bags.

Okay. I got the canisters.

…

…?

…

Okay, Houston; Aquarius.

Yes. Aquarius, Houston. Go ahead.

We have gathered the materials, and I can put Jack on the headset and he can copy the instructions copy it to give them to him, or do you think they're too detailed?

Why don't you put him on the headsets, Jim, and I'll read it out to him.

Okay.

Okay, Joe. …

Okay, Jack. Did anybody ever tell you that you got a 60-day extension on your income tax. Over.

Yes. I think—I think somebody said that when you are out of your country, you get a 60-day extension.

Okay; right. Okay. I'm ready to start into the procedure. When you answer me back, speak up—speak up into the microphone, because our downlink is pretty noisy. The first thing we want you to do, and we'll do this on one canister, and then let you go ahead and repeat it on the second. So take one of the LCGs and cut off the outer bag. By cutting along one the heat seals; do it carefully and close to the heat seal, because we may have to use the outer bag if we damage the inner bag. So go ahead and do that, and then we'll do the next step.

Okay. Take an LCG, cut the outer bag by the heat seal. Be careful not to damage the inner bag. Right?

Right. Just cut along one side.

Hey, Houston, Odyssey—or Aquarius. We've done that.

Okay, Jack. Now—now remove the inner bag from the outer bag, and cut the inner bag, also, along one of the heat seals down one side.

Okay. Remove the inner bag from the outer bag, cut the inner bag along the heat seal along one side.

Okay. That's correct. Do that, and report.

Okay, Joe. We've got that done.

Okay, Jack. Now you can put the LCG itself; that is, take it out of the inner bag, put it in the outer bag, and stow it some place; we recommend U-1, but you can stow it wherever it's convenient.

… outer bag … I'd stow it back in …

Okay, Joe. We've got that.

Okay. Now pick up one of the lithium hydroxide canisters, and let me describe which end is which. It's approximately square on one—one of the vented flat ends, has the strap, and that end we call the top, the end opposite we call the bottom. Is that clear? Over.

Right.