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.

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.

Okay, Frank.

Apollo 8, Houston.

Go ahead.

This REV coming up we would like to clarify whether you intend to scrub control points 1, 2, and 3, only, and do the pseudo landing site; or whether you also intend to scrub the pseudo landing site marks. Over.

We're scrubbing everything. I'll stay up and try and keep the spacecraft vertical and take some automatic pictures, but I want Jim and Bill to get some rest.

Apollo 8, Houston. Four minutes to LOS. You have control of the DSE now, and all your systems are looking good.

Thank you very much, Mike.