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Ken Mattingly (CAPCOM)
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Okay, Apollo 8. That completes our COMM test. Thanks for your cooperation. And I've got a change here to NAV sightings that will come up at 32:20. And we want to change your star a little bit there. Are you ready to copy?
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Ken Mattingly (CAPCOM)
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Okay, Apollo 8. We would like to change the NAV sighting as follows: we would like to use star 26, that is, two-six; we would like to make it earth-near horizon for two sets, two sets. Then we would like to take star 16 earth-far horizon, one set. If star 26 earth-near horizon is not possible, star 16 earth-far horizon, one set, and star 22 earth-far horizon, one set. Over.
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Ken Mattingly (CAPCOM)
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Apollo 8, okay; we can put this off. What we will probably need from you is some kind of an estimate of when you think somebody will be available to work on it, and we are working on how much lead time we need now.
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Frank Borman (CDR)
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Houston, why don't you figure the CMP will sleep another couple of hours, then the LMP, and then the CDR up to about 43 hours equally. Over.
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Ken Mattingly (CAPCOM)
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Okay. We can put off this NAV sighting. It was scheduled here at 34:20, and we can put it off, Judging from your comments about sleeping, we would like to get it as soon as we can, and right now, our plans are to slide it 2 hours. We will do the P52 by sliding it back to the same thing since it is associated with the P23. So If that's a convenient time for you, why we will plan on that.
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Ken Mattingly (CAPCOM)
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Well, as far as we are concerned, that isn't going to help us any. We will have to do it over again anyhow.
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Ken Mattingly (CAPCOM)
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Well, if you think Jim's going to be up in a couple of hours, why that will slide us 2 hours to 36:20.
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Frank Borman (CDR)
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Okay. We will go ahead and make another one there and pick it up then if that's okay.
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Frank Borman (CDR)
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What we are going to try to do is get back on the sleep cycle to those sleep periods just prior to LOI by taking shorter cycles for each man.
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Ken Mattingly (CAPCOM)
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Apollo 8, this is Houston. I hadn't said anything at that time. We're digging some angles out for you now. In reference to your earlier question about the sleep cycle juggling and so forth: we agree with your comment. We would like to get back on the flight plan as far as the sleep cycles and so forth are concerned by the time we get into lunar orbit. So we'd like for you to use your own judgment about the most efficient way to accommodate the sleep cycles and proportion it up among yourselves. We would like to have you keep us informed of who's doing what and what your plans are. We have the one P23 that we had slipped 2 hours. We'd like to get the other one in. We can also adjust the time for the other P23, if it's going to conflict—I guess that's two more P23's. We can adjust the time for those if you'll let us know what your forecast is for when Jim will be available to take some sightings. So the big message is that we'd like to work around whatever your desires are. If you'll let us know, we'll pick some stars and some angles and have them ready for you.
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Frank Borman (CDR)
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Okay, Houston. The CMP will be up at 36 hours. The LMP is going to sleep now, and he'll sleep through until 40 and then I'll stagger that in and try to go to sleep around 30 to 37 so that by the time we get to day 3 we'll all be back on the same direct sleep cycle.
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Ken Mattingly (CAPCOM)
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Apollo 8, Houston. REACQ angles look like minus 45 in pitch, plus 90 in yaw, and 34 23 for the time.
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Frank Borman (CDR)
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Roger. Copy. This is good using REACQ because it keeps the caution and warning from going off again.
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Ken Mattingly (CAPCOM)
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Roger. I understand that. Are you leaving the high-gain antenna on after it swings over to the reset position?
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Milt Windler (FLIGHT)
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Why can we just not use the high-gain antenna for a while? Getting high bit rate on the OMNI's. Okay, let's tell them that we'll just not worry about the OMNI for a while.
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Bill Anders (LMP)
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Houston, this is the LMP. Before I hit the sack, could you give me a rundown on our systems the way you see them?
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Ken Mattingly (CAPCOM)
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Okay, we'll put that together for you and we were just talking about the redundant ECS components check and we were going to put that off until everybody's had a chance to get some sleep. Trying to keep you from having going to the left-hand couch.
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Bill Anders (LMP)
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Oh, that would be nice. I sent Lovell under the couch, though. I've got one man sleeping under the left couch here—right couch and one man sleeping on our right couch.
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Ken Mattingly (CAPCOM)
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Okay. And in reference to the OMNI versus the high gain, it looks like we can live with the OMNI antennas here for several more hours, if you would like to delete the use of the high gain.
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Ken Mattingly (CAPCOM)
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Okay. Before you pitch your eyeballs there, we'd like to terminate the battery charge.
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Ken Mattingly (CAPCOM)
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Okay, Apollo 8. All the systems—giving a quick look around the room—look real fine. You've got an RCS quad update on the quantity, so you have that information. The SPS oxidizer feed-line temperature and the fuel temperature are both at 73 degrees. The cryo profile is running right on the line: Battery A—our calculations have 39.63 amp hours. Battery B, 37.94, and battery Charlie, 38.46. The COMM continues to be running ahead of predictions in quality and circuit margins. Everything else looks like it's real fine.
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Bill Anders (LMP)
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Roger. Do you expect to have a low bit rate voice on the DSE off the OMNI's at lunar distances?
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Ken Mattingly (CAPCOM)
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That's negative on DSE off the OMNI's. Not looking forward to that much improvement.
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Ken Mattingly (CAPCOM)
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Okay. I know you're trying to be quiet, so I'll just read up some information to you. One of the things that we just turned up that might give you some confidence, if you lose oxygen cryo tank now: you have 80 pounds remaining now at CM/SM SEP. The limiting factor on single tank operation right now is the hydrogen tank which has a positive margin at CM/SM SEP, assuming our standard profile gives you about 143 hours. So it looks like you are over the hill on those. Notice that you're flying in the rate 2 position for you BMAGS which is fine. Only make sure that you still were maintaining a PTC attitude. Looks like you're pretty close to it.
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Frank Borman (CDR)
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Roger. We are flying PTC, and I was wondering why it was going out of the deadband; now I know. Thank you.
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Frank Borman (CDR)
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That's what happens when you let Anders fly. He's asleep so he can't defend himself.
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Frank Borman (CDR)
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Good. They're both conked out; how about just filling me in on some news, and I'll keep quiet just to give me some words on what's going on in the world.
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Ken Mattingly (CAPCOM)
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Apollo 8, Houston. I believe we've lost our uplink. I'm transmitting in the blind. Read you loud and clear.
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Ken Mattingly (CAPCOM)
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Apollo 8, Houston. Read you loud and clear. We may have some uplink problems; transmitting in the blind, at this time. Over.
Spoken on Dec. 22, 1968, 11:09 p.m. UTC (55 years, 10 months ago). Link to this transcript range is: Tweet
