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Jim Lovell (CDR)
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As we approach the burn, you want to go through the same check that we did for the last burn. That is, we want to make sure we have everything powered up … circuit breaker by circuit breaker in conjunction with your direction. And for … we ought to have a procedure for powering up the command module again when we have to go back into the command module …
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Joe Kerwin (CAPCOM)
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Okay, Jim. We copied that. First of all, you want to go through the circuit by circuit breaker careful powered-up procedure for the next DPS burn, and we're working on that. Secondly, you want a procedure for powering the command module up again when you have to re-enter it and power it up and we're talking about that and working one up, and we'll get both those for you …
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Jack Swigert (CMP)
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Joe, can you also get us an idea about how far out we can expect to make it on the command module batteries.
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Joe Kerwin (CAPCOM)
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Okay, Jack. It sounds as though we probably don't want to power up the command module before EI minus 2 hours. That doesn't mean we can't start our procedure a good deal before that, but we don't want to power it up much before EI minus 2. Over.
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Jack Swigert (CMP)
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Okay. I was just thinking in case something—we had the sort of problem here about how we would go about getting in the command module … we need to power up—and—in order to make it back into Earth.
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Joe Kerwin (CAPCOM)
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Right, Jack. It's quite clear that we're going to have to very carefully make up a full checklist for you on that; we'll do it.
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Jim Lovell (CDR)
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Oh, well, we've got to have something to … Besides, we can get rid of the LM … decide then what they'll do.
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Jack Swigert (CMP)
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…—hundred ampere-hours. We had it figured out that we had 550 ampere-hours left. …
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Jack Swigert (CMP)
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… bigger than 133 hours. … Oh, yes, I guess—Yes, he's … the descent Thursday afternoon. He had it figured out that—for a splashdown at … number of hours—74 hours, and we've figured out that we—I don't know how we arrived at this—but he added up all the …
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Joe Kerwin (CAPCOM)
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Roger, Jim. We just thought of something; namely, that we probably should get the lithium hydroxide canisters out of the command module reasonably soon just to make certain that they don't stay in there and possibly swell up until they'd be hard to get out. I wouldn't wake up Fred for that, but it's something you should do possibly before you go to sleep.
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Jim Lovell (CDR)
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Okay, Jack, take the lithium hydroxide canisters out. Tie them down, or something like that … command module. And then get us some food …
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Jack Swigert (CMP)
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Okay, … That's another big …, man. If we have to start drinking water out of the … drink damn near a gallon a day.
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Jim Lovell (CDR)
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I'm also figuring that when we've got to go back in there, we'll … take the drogue and the food … back here—take these—put these back in there. …
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Joe Kerwin (CAPCOM)
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Oh, not very good, Jack; suggest that for communication here, we go to POWER AMPLIFIER circuit breaker IN and FUNCTION switch to VOICE.
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Fred Haise (LMP)
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Okay, I didn't want to get through or anything. I just wanted to check and see if we had you at all in this mode.
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Joe Kerwin (CAPCOM)
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Oh, yes, we do have COMM. You're extremely noisy but if you read loud and slow we can easily copy it.
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Joe Kerwin (CAPCOM)
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Roger, we understand that. It is strictly a downlink problem and you can stay in the DOWN VOICE BACKUP mode if you want. If we get involved in conversation, I think we'll want to go back to NORMAL voice.
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Joe Kerwin (CAPCOM)
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Fred, Houston. Understand you'd like to know the GET of your initial powerup, is that correct?
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Joe Kerwin (CAPCOM)
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Okay, we don't have a percise time for the starting of that procedure yet; we are working on it real hard. It won't be for several hours; and we'll pass it up to you just as soon as we get it. Over.
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Joe Kerwin (CAPCOM)
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Okay. Our estimate is that we will start powering up for the DPS burn at about 76 hours elapsed, which is about 6-3/4 hours from now.
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Fred Haise (LMP)
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Okay, Joe, about 76 hours or so and I guess you misunderstood. My question was what was the GET way back when, when I first came across to the LM and transferred to LM power? How long have we been living on the LM, now?
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Joe Kerwin (CAPCOM)
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Okay, the time of transfer to LM power was 57 hours, 11 minutes. For your information, we seem to be reasonably fat on power. In fact, we are looking at a procedure that we might recommend to you later on after the burn and so forth of powering up one of the command module main buses via the LM umbilical. This would enable us possibly to charge up the command module batteries. Over.
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Fred Haise (LMP)
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Okay, Joe. That sounds great. I just thought that to pass the time, I'd do a little backseat quarterbacking, here.
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Joe Kerwin (CAPCOM)
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Okay, Fred. I have a few words for you on some things we want to do in the next few hours, and in order to get good COMM for that and also in order to give FIDO a few minutes of ranging, I want to have you put the POWER AMPLIFIER circuit breaker in panel 16 in, the VOICE FUNCTION switch to VOICE, and RANGING FUNCTION switch to RANGING. Over.
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Joe Kerwin (CAPCOM)
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Okay, Fred. And you're loud and clear down here now. Okay. What we're getting a procedure ready for you is to do an AOT Sun check at approximately 74 hours or in just a little over 3 hours. That will be a detent 2; we'll have a detail procedure up shortly and it will include a rendezvous radar redesignation to get it out of the way and a P52 maneuver to the attitude. It's our feeling that if that checks out within 1 degree that your platform will be okay for the burn without a subsequent P52. If it's not within 1 degree, we are working up an Earth/Sun alinement procedure to aline the platform, and we'll have that up to you later. Okay. Assuming that the Sun check is okay, we will then give you a star for a confidence check on the back side when you're in the darkness. We'll be updating a burn pad to you prior to LOS going around the Moon. We'll have another look at you after AOS, and we'll update the pad if required. Right now that update should be very small. Over.
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Fred Haise (LMP)
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Okay. Joe. As I read that, at 74 hours we're going to do an AOT Sun check at detent 2, which is going to require the rendezvous radar out of the way. And we use P52 AUTO maneuver to get there, or at least the angles out of that, and if this passes within 1 degree, you're saying the platform is okay for the maneuver, and we won't need a subsequent P52. But even if it is okay, you'll give us a star which we can use for our check when we're in darkness. If this check flunks, you'll pass us on up then an Earth/Moon aline procedure.
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Joe Kerwin (CAPCOM)
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Okay, Fred. That's correct, except the aline procedure that we're working on is an Earth/Sun aline, and other than that, that's correct. Incidentally, this TC plus 2 maneuver looks like it will still be around a 900-foot-per-second maneuver and that it will get you back to the mid-Pacific line at 142 hours.
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Fred Haise (LMP)
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Okay. That was an Earth/Sun check, John. We're getting a little close to the Moon now. And the TC plus 2 maneuver still looks about 900 foot per second to get us at mid-PAC, at about 142 hours.
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Joe Kerwin (CAPCOM)
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Okay, Fred. We got a good batch of ranging and now we'd like you to reverse the configuration, RANGING to OFF, VOICE FUNCTION to DOWN VOICE BACKUP, POWER AMPLIFIER circuit breaker out; we'll be talking to you.
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Fred Haise (LMP)
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One other thing you might have somebody look at—I don't want to bother the guys upstairs—the drain hose that we've got in the command module, I wonder if we can find out if it will plug into the PLSS and in which case we can keep transferring—later on at least—the command module water into the LM via the PLSS.
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Joe Kerwin (CAPCOM)
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Okay, Fred. You're almost up with us. We are looking real hard at getting water from the command module waste tank into the PLSS, using that hose and then dumping it from the PLSS into the LM ascent tank, and we think it is feasible; we're checking it out to make sure.
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Fred Haise (LMP)
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Okay. Just made another maneuver. We allowed for a little too much roll, there. I wonder if that's too much, or should I try to take it out now that I got it stopped.
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Joe Kerwin (CAPCOM)
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Roger. Listen, Charlie Duke wants to talk to you—to you about the AOT star check; and, so that we can have good COMM, I'd like to reconfigure with the POWER AMPLIFIER circuit breaker in and the VOICE FUNCTION switch to VOICE and while we're at it, we'd like the RANGING FUNCTION switch to RANGING. Over.
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Charlie Duke
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Okay, Fred-o. Reading you 5-by. The procedure I'm going to read up to you is a Sun check for the—to see if we're going to need an alinement or not. If you'll get out your G&N dictionary and open it to P52, page 34, we'll start at the bottom. Over.
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Charlie Duke
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Okay, Fred-o. At the bottom of the page, we want step 1, on the flashing 0406, we want an option 3, and that'll pull us over to 6; and, on the 5025, we want you to do the ENTER on the 5025, and that'll bring up flashing 0170, and load in R1 200. Over.
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Fred Haise (LMP)
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Okay. Let me see if I'm with you. We call up P52 and, on the flashing 0406, we PRO on a 3 REFSMMAT which leads us to a flashing 5025. We ENTER on that. On the flashing 0170, we want to ENTER a 200.
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Charlie Duke
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That's affirmative; and after that, you PRO on that, and you come up with a flashing 0688, and we'll have to load NOUN 88. And if you're ready to copy, I have the Sun half-unit vectors at 74 hours GET. Over.
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Charlie Duke
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Okay. At Sun half-unit vectors, X, R1, is plus 0.45498, Y plus 19024, Z plus 08250. Over.
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Fred Haise (LMP)
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Okay. We PRO on—after entering the 200. We'll get a flashing 0688. We then load the Sun unit vectors for 74 hours, which are R1 plus 5—correction, plus 45498, R2 plus 19024, R3 plus 08250.
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Charlie Duke
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Roger. That's good, Fred-o. And that'll bring you to step 8, and you get a flashing 5018 when you PRO on the NOUN 88. Okay. At 5018, we want to do an AUTO maneuver to—to the attitude, so just do the—the PRO with the GUIDANCE CONTROL, PNGS; MODE CONTROL, PNGS, AUTO; and we'll take this attitude. Now, that's going to put us at—at attitude for the Sun check. Now, we're being a 1.4-degree deadband in this program in a docked configuration; so, to help you out, you could call VERB 62 to get your needles—and it—when the needles go through zero or null out and—in that deadband—then you take a look in the AOT and see how close the Sun is. And we want within plus or minus 1 degree. Over.
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Fred Haise (LMP)
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Okay. So we PRO on the NOUN 88, and we end up with a flashing 5018; and you want an AUTO maneuver here rather than using the TTCA, so we PRO with GUIDANCE, PNGS; MODE CONTROL, AUTO. We've got a 1.4-degree deadband with a VERB 62 will give us the needles to try to zero them in and, at that time I look through the AOT and, if it's like Apollo 11 Sun check, all we've got to have is the Sun somewhere in the—out there somewhere on the Sun as it passes. Is that correct?
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Charlie Duke
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I think that's a little tight; that's about a quarter degree. We can go a little bit out of that. Stand by 1. Fred, we'll get you an answer on that one. And also, if you'll stand by, we'll give you a DAP load for this maneuver. Over.
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Charlie Duke
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Aquarius, Houston. Fred-o, on that—to pass that check, the Sun is at—will subtend an arc of one-half degree in the AOT, so you can be two diameters off and still pass the check. Over.
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Charlie Duke
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That's affirmative. And we want you to maneuver with a DAP of 0.2 of a degree a second. Over.
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Charlie Duke
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Roger. Now, if we pass that check, you can just terminate P52 right there, and we'll give you an attitude to go to a burn attitude, and from this we can get a star check. If you don't pass, we'd like you to do an alinement at 75 hours. And, if you're ready to copy, we have some Sun half-unit vectors and some Earth half-unit vectors at 75 hours. Over.
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Charlie Duke
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Roger. First with the Sun; for X, plus 45483; for Y, plus 19053; for Zebra, plus 08262; Earth half-unit vector at 75 hours, plus 32120, minus 34155, minus 17370. Over.
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Fred Haise (LMP)
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Okay. Sun half-unit vectors: R1 plus 45483, R2 plus 19053, R3 plus 08262; Earth half-unit vectors: R1 plus 32120, R2 minus 34155, R3 minus 17370.
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Charlie Duke
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Roger, Fred-o. Good readback. Now, on the Earth, we estimate it—if you have to do this alinement, that the Earth will be about a 2-degree Earth. And it'll be approximately three-quarters lighted. Now, to mark on the Earth, we'd like you to take an imaginary line between the horns of the crescent and mark midway between the horns. Over.
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Fred Haise (LMP)
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Okay. We got a 2-degree Earth that's three-quarter lighted, and we're to imagine a line between the horns of the Earth and mark right in the center of that line.
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Charlie Duke
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That's affirmative. Now, on—on this star check—correction, the Sun check, Fred, at—On the 5018, I got some FDAI angles for you if you're ready to copy. Over.
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Charlie Duke
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Roger. Okay. At 74 hours when you start this maneuver, the 5018 should look like R1 of 2703 degrees, pitch R2 is 0903, and R3 of 2908. Over.
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Charlie Duke
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Roger. That's good readback. Now, we got one more procedure for you; and, right now, we got the rendezvous radar stowed and we won't be able to see anything out of detent 2, so we'd like you to position the radar to 0283; and we have a procedure for that. And we'd like you to do that right before you get the attitude. Over.
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Charlie Duke
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Aquarius, Houston. On those 5018 angles we had at 74 hours, Fred, that was based on a VERB 49 to this attitude, and they will be incorrect for the two axis maneuvers, so you can just scratch them. Over.
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Fred Haise (LMP)
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Okay. You're saying the angles you gave me for the 5018, that was for a VERB 49, so they won't be good for the 5018, and we should scratch them.
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Charlie Duke
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That's affirmative. Okay. If you're ready to copy, I've got this rendezvous radar procedure. Over.
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Charlie Duke
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Okay. It's about a 10-stepper, but real easy. Okay. On CB 16, EPS INVERTER 2, close. CB 11, AC BUS A BUS TIE INVERTER 2, close. Panel 14, verify INVERTER switch 2. CB 11 RENDEZVOUS RADAR 2, close. RENDEZVOUS RADAR, release. RENDEZVOUS RADAR to LGC on panel 3. Are you with me? Over.
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Charlie Duke
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Okay, Fred. Good show. Step 6: VERB 41 NOUN 72 ENTER, plus all balls, plus 28300. Step 7: Monitor movement with VERB 16 NOUN 72. Step 8: CB 11 RENDEZVOUS RADAR 2, open. Are you with me? Over.
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Charlie Duke
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I got one more for you. You'll copy this and give me it all on the readback. Okay. Once you get the attitude and you want to use the—you want to get the AOT lamp, we got to go CB 16 EPS INVERTER 2, close; CB 11, AC BUS A AOT LAMP, close. After the P52, you can open CB 16 EPS INVERTER 2, and open CB 11 AC BUS A AOT LAMP and AC BUS A BUS TIE INVERTER 2. Over.
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Fred Haise (LMP)
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Okay. Let's see if I got it all. For rendezvous radar parking: first of all we want CB 16 EPS INVERTER 2, closed, CB 11 AC BUS A BUS TIE INVERTER 2, closed. Then on panel 14, verify INVERTER 2 selected. And CB 11 RENDEZVOUS RADAR 2 closed, both breakers. Then we are to pull the RENDEZVOUS RADAR RELEASE handle. On panel 3, we then want RENDEZVOUS RADAR to LGC. A VERB 41 NOUN 72 ENTER with plus all zips, plus 28300 in registers 1 and 2. GO on that. Then we monitor movement with the 16 72. After it gets parked, CB 11 RENDEZVOUS RADAR 2 open, followed by VERB 44 ENTER. And CB 16 EPS INVERTER 2 open. Now, when it comes time for the alinement to get an AOT lamp, CB 16, EPS INVERTER 2 closed, CB 11 AC BUS A AOT LAMP closed, and after the alinement is completed at CB 16, EPS INVERTER 2 open, CB 11 AC BUS A AOT LAMP open, CB 11 AC BUS A BUS TIE INVERTER 2 open.
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Charlie Duke
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Good readback, Aquarius. We'll—To get those needles on the VERB 62, we got to power up the commander's FDAI. We'll have that procedure for you shortly. Over.
Spoken on April 14, 1970, 4:01 p.m. UTC (54 years, 5 months ago). Link to this transcript range is: Tweet
