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Jack Swigert (CMP)
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Okay, Jack. We're going to get a time on a revolution here, and maybe that'll help you out.
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Jack Swigert (CMP)
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Okay, Jack. Well, we didn't get the Earth that time. The Moon came back through at about 10 degrees, and now we're getting to the Earth again. Stand by.
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Jack Swigert (CMP)
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Okay. The Earth came through the LPD at 62 degrees that time. And the total time for the two revolutions,—I missed the Earth revolution before, but the total time for the Earth's two revolutions was 3 minutes and 50 seconds.
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Jack Lousma (CAPCOM)
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Say again the time and the—and also the LPD number. You're in the background noise, Jack.
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Jack Swigert (CMP)
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Okay. Okay, Jack. LPD that time was 62 degrees and that was for two revolutions, being at that distance we missed the Earth—The time before we didn't see it. And the time was 3 minutes and 50 seconds.
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Jack Swigert (CMP)
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Jack, Jim said it isn't uncomfortable. It's a little annoying as for the OMNI switching, and also he said it's kind of—He said this Earth/Moon relationship's kind of … because he doesn't know when to …
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Jack Lousma (CAPCOM)
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Aquarius, how about cycling the power temp monitor to find out which battery it is, please.
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Jack Lousma (CAPCOM)
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Okay, Fred. We copy your same old friend, battery 2. Could you give us high bit rate for a while, please?
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Jack Lousma (CAPCOM)
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Okay, Aquarius. You can go low bit rate, POWER AMP, OFF and DOWN VOICE BACKUP now. Voltages and currents look normal on battery 2; so ignore the battery light.
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Jack Lousma (CAPCOM)
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Okay, Jim. Since the antenna switch is kind of annoying, we've talked them into buying only half of the data. If it gets too troublesome for you to switch antennas, why, just leave it on one antenna and we'll listen to you half of the time.
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Jim Lovell (CDR)
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Okay. It's not really much trouble. That's all we're doing about it. We'll try to keep up with it. And you're satisfied with this attitude so far. I guess you're going to watch the thermal and find out whether perhaps we're going to some other PTC attitude.
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Jack Lousma (CAPCOM)
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Roger. Thermal appears to be no problem. We're looking at what DELTA-V might have been imparted due to this, and it looks like we're not going to change the PTC attitude.
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Jack Lousma (CAPCOM)
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Yes. We'll be looking at the data here, and give you a better answer in next 30 minutes or so.
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Jack Lousma (CAPCOM)
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And, Jim, we're going to have a handover here pretty soon, about 3 minutes, we may lose uplink for 30 seconds or a minute.
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Jack Lousma (CAPCOM)
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Okay. I'm hearing you now, and the noise has come up again, but it will go down.
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Jack Lousma (CAPCOM)
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Okay. That's a lot better, and we figure your battery glitch was just that thermal switch triggered a mal—a CAUTION and WARNING, just cycled once, and triggered a MASTER ALARM again. We'll watch the batteries for you, since you don't have any CAUTION and WARNING on now.
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Jack Lousma (CAPCOM)
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Okay, Jim. Your luck is holding. Tracking shows that your entry angle has gone up to minus 6.24. This is on the basis of all the data we've collected between the midcourse up to the time the SHe tank went. So we'll continue to look at it, and see if SHe tank did anything to it at all. So it's—The data has gone from 5.9 to a minus 6.24.
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Jim Lovell (CDR)
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Jack and Fred both are going to sleep. It's sort of humorous; Fred's sleeping place now is in the tunnel, upside down with his head resting on the ascent engine. Jack is on the floor of the LM, with a restraint … wrapped around his arm to keep him down there.
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Jack Lousma (CAPCOM)
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Okay, Skipper. Your luck is really hanging in there. Your water's good up to 161 hours now.
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Jim Lovell (CDR)
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Okay. Jack, I'd just like to know what—what plans or thoughts being contemplated for the PLSSs or the OPS, whether we're going to use their LiOH canisters or take the devices back in the command module with us, or just what will be your plans.
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Jack Lousma (CAPCOM)
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Jim, we've had a lot of people working on the entry procedures, and they'll be continuing to do so. We got a few ideas we'd like to toss at you so you can start thinking about them if you think you're in a position to discuss them without waking up the other guys. What do you think?
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Jack Lousma (CAPCOM)
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Okay. One of the first things we want to do is charge the battery in CSM, so we can get some LM power over there to do that, and we have procedures ginned up to do it. In regards to reentry, we're planning our last midcourse at 5 hours before entry interface, and, if we have to make one, that is. And then we'd like to jettison the service module at 4 hours and a half, roughly, before entry interface, and take the next 3 to 3-1/2 hours for taking pictures, cranking up the command module G&N, taking care of stowage, and other odds and ends. And we'd hang on to the LM until 1 hour before entry interface, and then we'd jettison that. And these procedures are going to be run integrated in the CMS and LMS tomorrow morning, and, hopefully, later on in the day, we'll do it again with Mission Control on the loop. A couple of other things we'd like to toss at you: one question is what do we do with the OPS. The thought is that there is adequate O2 in the command module and that the OPS represents high pressure source and a stowage problem, and people are thinking about leaving them in the LM. The other thing is that we think you might want to make this a suited entry, suiting up prior to LM jettison, because what we're doing is, when we jettison the LM, we're going to do it like we did in Apollo 10—just let the beauty go, and if we weren't suited, why, we'd be betting on the hatch seal to take care of us. So we thought we'd toss these few ideas at you. Some of them are ones that are particularly pertinent questions at this time.
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Jim Lovell (CDR)
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Okay. A suited entry would sort of … the 1-hour LM jettison back and … back and forth up to that time. … impede our progress back and forth. …
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Jim Lovell (CDR)
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If that's the case, all I'm worried about is having that all squared away. It's long before that … I want everything in its place. All the stowage cleared away, all the … ready to go and know exactly what to do and … so that we can do the midcourse, and … get into the command module … jettison the service module, and then know exactly how to get into the LM.
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Jack Lousma (CAPCOM)
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Roger. All those procedures will work—will be worked out precisely, and we agree that the stowage and all of those peripheral details ought to be taken care of before midcourse.
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Jim Lovell (CDR)
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And, I guess, that last midcourse, we'd want to start looking at midcourse fairly early, if we have the power to do so, mainly because of attitude control. This last time was fairly easy, but I'm not too sure how long we can continue to …
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Jim Lovell (CDR)
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I have … in, and it seems about as cold as it is now, we'll probably be going into suits long before entry.
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Jack Lousma (CAPCOM)
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I guess the two things which are somewhat unresolved at the moment are what to do with the OPS and what to do about the suited entry. We thought we'd toss those at you to see what you thought about them.
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Jim Lovell (CDR)
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Okay. As far as the OPS is concerned, we have enough oxygen in the spacecraft … to get us through. I have no … command module … suit loop prior to entry. I was looking at … OPS … sources of oxygen … also in the—in the front of the suit loop or … circulate …
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Jack Lousma (CAPCOM)
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Jim, I'm sorry. We're not catching what you're saying. The COMM is getting kind of bad right now.
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Jack Lousma (CAPCOM)
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I've still got you with quite a bit of background noise, but if you talk up like that, I think we can hear you.
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Jim Lovell (CDR)
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Okay. My only concern about leaving the OPS and/or the PLSS in the command module is how soon do we have to live off the command module consumables prior to entry, and the PLSS has a fan and has a lithium hydroxide … use the command module system. Also, the OPS … right now … command module … command module oxygen and electrical power is … but I had just as soon be … back in the LM.
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Jack Lousma (CAPCOM)
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It sounds like the general gist of your comments are that if things remain pretty much as they are now in the command module, you'd just as soon leave the OPS in the LM. Is that affirm?
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Jim Lovell (CDR)
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Okay … How we aline the command module right for entry, especially if you have the LM in back. Over.
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Jack Lousma (CAPCOM)
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Roger. That's one subject that's been getting a lot of attention, and let me see if I can get some general ideas on that at the moment.
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Jack Lousma (CAPCOM)
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Jim, I can give you the general idea of the proposed procedure for bringing the command module G&N up. It's the presently proposed one. We may come up with a better one, but here's what we're looking at right now. First thing we plan to do is to—using the LM COAS, sight on the Earth with the LM just as we did in the midcourse. Then we'll do a body-axis aline, 400 plus 5 on the ACS, to put the AGS ball at 000. And then we can give you an AGS ball attitude to fly to, to point the CSM optics at the Moon. And, if you can see stars, why, we can use those too. Then we can give you an equivalent set of CDU angles to put into NOUN 20 and to torque the platform over. So, now we're coarse alined. Then we do a fine aline by shooting at the Moon and then at the Sun. Do you follow all that?
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Jim Lovell (CDR)
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Okay, Jack. Let me see if I have it. What we do is point the LM at the Earth as we did for the midcourse COAS, and we do a body-axis aline on the AGS. Then you give us an AGS ball attitude to fly to. … the LM, and then we … point the … at the Moon. Then you would update the—give us some CDUs to coarse aline. … fine aline … on stars or the Moon or the Earth. Stand by. Okay. We had another MASTER ALARM, Jack. I don't see any lights down there, except the battery light's still there. You want — … display ECS. Okay. And the number 2 battery still has a light on it. I suspect it may be the same problem that we had before … …
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Jack Lousma (CAPCOM)
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Okay. Well, that—temperature sensor on battery 2 is kind of cycling back and forth and every time it does, it triggers a MASTER ALARM, Jim.
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Jack Lousma (CAPCOM)
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And, Jim, finally on the P52, we're considering using the—the Moon and then the Sun for the fine aline.
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Jim Lovell (CDR)
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Okay. The Moon and the Sun for the fine aline. Understand. We'll go through this again here …
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Jim Lovell (CDR)
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Okay, Jack. Once—Once I get the spacecraft at the proper attitude …
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Jack Lousma (CAPCOM)
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After we do the body axis aline on the AGS, we can tell you what attitude on the AGS ball to fly to in order to point the CSM optics at the Moon or at some star. And then we can, knowing where the optics are pointed, give you an equivalent set of CDU angles to put in NOUN 20 to torque the platform.
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Jack Lousma (CAPCOM)
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That's the current thinking. It may change between now and tomorrow, but right now, that's the way it looks, Jim. It'll probably be some take-off on that anyway.
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Jim Lovell (CDR)
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Okay. Are they planning on a G&N entry or using another system, like EMS or something like that?
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Jim Lovell (CDR)
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I understand that one of your reasons for a suited entry is the fact that the command module hatch … hasn't been good. It doesn't seem to be any different, but in the other … our hatch is no better than other spacecraft.
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Jack Lousma (CAPCOM)
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No, the situation, Jim, is that your hatch is as good as any other hatch but that we won't have a chance to verify it until so late in the game, like 1 hour before entry interface, in this case; whereas before, why, we had a chance to evaluate it in lunar orbit. Over.
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Jack Lousma (CAPCOM)
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And that might make your time line a little too crowded, getting your suits on there at the last minute; say, less than an hour before entry interface.
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Jack Lousma (CAPCOM)
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Jim, the next action item we want to pursue is transferring some LM power up to the command module MAIN B so we can start charging battery, and I guess what we ought to do is start on that one when somebody else gets up to help you there. So, when you decide to get the other guys up, or to have someone help, why, let us know and we'll start working on that.
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Jack Lousma (CAPCOM)
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Jim, I didn't catch all of what you said, but I think you wanted to know when the procedures [on] entry are going to be available and read up to you. If that's the case, why, we're talking about 120 hours or so. As far as the—charging battery A, we want to do that as soon as the other guys get up to help you. We've already passed up some of that procedure, and we have a couple of DELTAs to it.
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Jim Lovell (CDR)
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Roger. Jack's already up. He asked … curious when you wanted to do it. Did you understand that? … Is that correct?
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Jack Lousma (CAPCOM)
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Jim, we're having trouble hearing you. The next order of business is to charge battery A, and when you get somebody to help you there, why, we'll go ahead and get done with it.
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Jack Lousma (CAPCOM)
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And, before you start working on it let us know, because we've got some DELTAs to the battery charging procedure.
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Jack Swigert (CMP)
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Okay, Jack. Joe Kerwin passed me up the procedure for powering the CSM from the LM. Has it changed?
Spoken on April 16, 1970, 8:43 a.m. UTC (54 years, 6 months ago). Link to this transcript range is: Tweet
