- Jim Lovell (CMP)
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You planning on using our computer any time in the near future, I thought I'd do a little P37.
- Ken Mattingly (CAPCOM)
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Apollo 8, Houston. You can go ahead and run that 37 and we're going to kind of watch that from the ground, too, and see how it works out. A couple of items that are just of general interest in the trajectory world. Looks like the uncertainty in position was about 12 miles. Your uncertainty in velocity is about a quarter of a foot per second. And the perigee altitude of uncertainty is 5 miles.
- Jim Lovell (CMP)
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Roger. Understand. Just for information, perhaps you read it out on the ground. I ran our pericynthian altitude determination using first of all, P21. The star state vector that we navigated with, we have plus 84.7 mile altitude and then we ran out your state vector that you updated with us the last time. We got 64.2 and then I ran P30, using our state vector and got 82.6 nautical miles. These are all plus.
- Jim Lovell (CMP)
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What I'm going to attempt to do on P37 is to input your DELTA-V on your TLI plus 44 and use that 44 burn time. I notice that the entry velocity is a little high. We might not be able to do a normal P37, but we'll give it a try.
- Jim Lovell (CMP)
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Houston, one more question then before I start. Did you notice on this last update PAD, this minus MA NC-1. Was that referring to the P37 fast return or the nominal maneuver which you gave me?
- Jim Lovell (CMP)
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Okay. This happened yesterday, too. I'm trying to load the DELTA-V you gave us in the maneuver TLI plus 44 in P37, but I keep getting an operator error everytime I try to load zeros for the termination of the middle and corner. Do you know what I'm doing wrong in my procedure?
- Ken Mattingly (CAPCOM)
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Okay, looks like the decimal point in R2 under NOUN 60 is on the extreme right-hand side so the proper load will be 06070. Over.
- Jim Lovell (CMP)
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Ah, so. Okay, fine. Thank you. I'll update my checklist. Don't know what I want to update it for, I can't read.
- Ken Mattingly (CAPCOM)
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Apollo 8, Houston. We are about to hand over to another site so you may lose lock momentarily.
- Jim Lovell (CMP)
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Another comment on the optics. We're in PTC right now. We are passing the—we have the roll of about 182; we're about in 226 pitch and 18 in yaw. I can rotate the shaft all the way around at this particular attitude, and I get this band of light at about 10 degrees of this side of the M-line. It—it varies in intensity with the shaft position. However, it is there at this particular attitude.
- Ken Mattingly (CAPCOM)
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Jim, we have just been looking at your marks with respect to accuracy and they figure they are within a couple of thousandths of a degree of the theoretical optimum. The integrator seems to bear that out.
- Ken Mattingly (CAPCOM)
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Well, I am getting a lot of confidence in your ability to run that mystery show now.
- Bill Anders (LMP)
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Hey, Jim, we have to spend four more days up here with him, will you take it easy. He is already talking about going back to MIT as a professor.
- CommTech
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Well, I would like to say hello to all of you in Australia. How is everything down there?
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Spoken on Dec. 23, 1968, 3:36 a.m. UTC (55 years, 9 months ago). Link to this transcript range is: Tweet