Spacelog Apollo 8

Roger. Going to ZERO OPTICS.

Are you through with the computer now, Mike?

It's your computer; P27 LM state vector in and verified.

Roger. We're going to put it in the CSM slot.

Roger. That's affirmative.

Okay. TEI 8, SPS/G&N: 45701, minus 040, plus 157 085:18:19.04, plus 33195, minus 01267, plus 04716 179 008 001, NA, plus 00187 33552 311 33355 42 09090 252, Dzuba down 060, left 4.2, plus 0773, minus 16500 12982 36256 146:46:18; Sirius, Rigel, 1.29 155 010, four-quad, 15 seconds, horizon 4 degrees at TIG.

You keep good books; that's all correct.

Thank you.

Apollo 8, Houston.

Go ahead, Houston.

Roger. Some time back, we noted evidence of a restart in the computer and wondered if you had any remarks about it. Over.

I know it. Jim got screwed up on one of those programs. He's getting kind of tired here, and we got a RESTART and a couple of PROGRAM ALARMS. I don't know what he did.

Roger, Frank. The main point is the computer is looking fine to us, now.

That's good.

Houston, don't believe all you hear up here.

No, we have a filter, Jim, for that.

Thank you.

Apollo 8, Houston.

Go.

Roger. In some of Jim's previous comments about the limb brightness as the sun was about to come up has sparked a lot of interest down here. And we'd like to ask him if he gets a chance to notice again or perhaps he can recall, whether there were any changes in the appearance of the stars. Such as, did he notice any twinkling while this was taking place, and did he notice any narrow limb brightening within 10 to 20 seconds prior to the sun's rising? Over.

He'll be with you—he's doing a P52 now.

Okay.

Houston, my comments concerning the sunrise was the comments above the terrain. There appeared what might be called diagonal light or light due to the haze or something like that. As the sun came above or before the sun came above the limb, definite rays could be seen coming from the other side. It was a uniform haze emanating from the center spot where the sun was going to rise, and this was something which I didn't expect.

Roger, Jim. Understand. We copied that and just curious, and if you see it again whether you notice any stars twinkling or any additional information.

Will do. Won't have a chance until control point 1.

Actually, he doesn't want to pass out too much of that information. He wants to save it and write a paper when he gets back, Mike.

Houston, Apollo 8.

Apollo 8, Houston.

Okay. What time is that TV, Mike, 85:37?

85:37 to terminator, which is probably like 86:14.

Okay. Well, I don't know if we can go that long with it, and I'm going to scrub all the other experiments, the converging stereo or other photography, and we are a little bit tired; I want to use that last bit to really make sure we're right for TEI.

Roger, I understand, Frank.

A couple of miscellaneous items for you: we'd like for you to discontinue charging battery B at this time; we'd also like to get a cryo stir, 2 minutes on all four; and your UP TELEMETRY IU switch, put to BLOCK, please, and you are GO for the next lunar orbit.

Thank you.

Houston, Apollo 8.

Apollo 8, Houston. Go ahead, Frank.

Roger. I want to scrub these control point sightings on this next REV, too, and let Jim take a rest.

Roger. I understand.

I understand you want to scrub control points 1, 2, and 3 on the next REV and the converging stereo on the following REV.

That's right. We're getting too tired.

Apollo 8, loud and clear.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Roger, Apollo 8. Couple of notes for you: on the P52 you are coming up to on this REV, we've looked at your state vectors and all your information. The platform looks good, and it appears that it is your option if you would like to by-pass this P52, your platform will still be good at the following TEI pass. And we would like to have your PRD reading, and I guess we are behind the sleep summary. Over.

Okay. Jim and Bill are both resting now. I had about 3 or 4 hours earlier today.

Roger. COPY.

This PRD now reads 144.

Copy, 144. And we have an update ready to go into your computer for the state vector if you want to go to P00 and ACCEPT.

P00 and ACCEPT.

Jerry, I'm standing by to copy the TEI 9 PAD.

Okay, Apollo 8. We have completed with the computer. You can use the VERB 47 to transfer, and I have the TEI 9 PAD.

That's Ken isn't it? Just a minute, and I'll take care of it.

Roger.

Okay. I went to P00 and then VERB 47, and I'm ready to copy.

Okay. Do you have it in BLOCK?

Say again.

I say, do you have the UP TELEMETRY in BLOCK?

Roger.

Roger. Thank you.

TEI 9, SPS/G&N: 45597, minus 040, plus 157 087:19:18.20, plus 34188, minus 01353, plus 00780 180 008 001, NA, plus 00187 34223 313 34021 42 0898 253 033, down 131, left 28, plus 0758, minus 16500 12987, plus—or 36277 146:48:16; and that's Sirius and Rigel 129 155 010, four jet, 15 seconds, 1.2 degrees on the window at T minus 3, high speed minus MA, engine 3.7 seconds longer than given.

That's affirmative, Apollo 8. And when you get around to it, if you would like for us to dump your tape, we can do that when you get on the high gain.

Roger.

Okay. Should have it on the high gain now, Houston.

Roger. And we're going to go ahead and dump the tape.

Roger.

Ken, will we get the real TEI PAD the next time around now?

Apollo 8, we'll have one for you the next time around, and we'll update it if necessary on the following REV.

Houston, Apollo 8.

Go ahead.

Do you have any idea why quad B seems so much lower in quantity than the other three quads?

Apollo 8, Houston.

Go ahead.

Okay. It looks to us like, although we're reading out the same thing you are on the quad quantity, using the computer program and all of the correction factors that are in there, it looks like all four of your quads are very close. In pounds, it looks like you have, for example, 193 pounds in quad A and 189 in B, 200 in C, and 190 in Delta. And the difference that you read on the gage is attributed to the fact that you don't have all of the correction factors in there. This ground calculation has an accuracy of about plus or minus 6 percent, and the best you can do on board, even using your chart, is plus or minus 10 percent. Over.

Apollo 8, Houston. The tape recorder is back to you.