Spacelog Apollo 8

Bill, could you run through that again? We're not reading you too loud, and would you say again what you tried on the way out, please.

On the way out, they gave us some REACQ angles which we used, and once it broke lock and re-positioned itself, why, it went over to the OMNI's and waited till we got to near breaking lock again and switched back and snapped right in there.

Roger. Thank you. We copy.

We have a few more stars to get, and then we'll give it a try.

Apollo 8, Houston. Over.

Go ahead, Houston.

Roger, Bill. We got a bunch of tapes of some of your favorite music down here. You be interested in hearing a little background on the S-band?

Go ahead.

Houston, Apollo 8.

Apollo 8, Houston. Go ahead.

Roger. For some reason, we suddenly got a PROGRAM 01 and no attitude light on our computer.

We confirm that.

Stand by one, Jim. We're working on a procedure for getting you cranked back up again.

Apollo 8, Houston.

Go ahead.

Okay. Jim, while we're working on this procedure, we'd like to know did you select 01, and you get a VERB 37 ENTER, 01 ENTER?

Let's see, I'm not too sure, Mike. I might have done that, yes.

Okay.

We have star 01 coming up, now that might have been the reason.

Okay. We understand. Why don't you just hold what you've got on your DSKY, and we'll be with you shortly.

Apollo 8, Houston.

Go ahead.

Roger. Could you or Bill give us a better OMNI antenna, please?

Apollo 8, Houston. Over.

Go ahead, Houston. Apollo 8.

Okay. Frank, our procedure is to select P00, and from P00 go to P51, and get a platform alignment. After you've done that, we will send you up a P27, a REFSMMAT, and then you can do P52 REFSMMAT options. Then you'll be back in business. Over.

Okay, Mike. Thank you.

Houston, this is Apollo 8.

Houston, Apollo 8.

Apollo 8, this is Houston. Go ahead.

Apollo 8, this is Houston. Say again. Over.

Okay. We've completed a P51 now. You want us to try a P52, or you want us to wait till we can put a REFSMMAT in?

Stand by one, will you, please, Frank?

Roger.

We're putting together a P27 load for you now, Frank; that's the reason for the delay. We just want to make sure we don't overlook anything before we send it up to you.

Okay. We'll just sit tight then. We've got a good P51. We'll just wait till you put in a REFSMMAT, and then, of course, we'll fine align over to that, right?

That's right, that's exactly right. Just stand by.

Mike, this is Frank again.

Go ahead.

I suggest that we go ahead while you're doing that, do a P52 here; and let it do an automatic and just tweak this up. Jim had to use Rigel and Sirius, and they're pretty close together. And although we got a zero difference for the star angle, that might not be a bad idea just to try a 52 here.

We'd rather not do that, Frank. Stand by one.

Alright. We won't do a thing.

Frank, we feel that procedure that you're talking about is really not required, and it's sort of wasting your time. You'd still have to—upon completion of that, we'd have to send you a new REFSMMAT, and you'd have to go ahead and do P52 to that REFSMMAT in addition. Over.

Apollo 8, Houston. If you'd go P00 and ACCEPT, we have our P27 ready. We'll send you up a REFSMMAT. Over.

Roger. P00 and ACCEPT.

Roger.

Apollo 8, Houston. Frank, we'd like to make sure you understand that when you do your P52, you want to select option 1, the preferred option, because those are the registers we're blinking now with this P27.

Roger. Option 1; thank you.

Apollo 8, Houston. We got a good load in; it's your computer. Go to BLOCK.

Okay.

Roger. Stand by.

And you can go ahead with your P52 at your convenience.

Apollo 8, Houston. Over.

Go ahead, Houston. Apollo 8.

Roger. When Jim gets to the end of P52, he's got a flashing VERB 37. We'd like him to not proceed, to hold at that point; we'd like to read some bits and pieces out of the computer at that time. Over.

Roger.

Apollo 8, if Anders has got time to give us a countdown, could we get the BIOMED switch from center to left?

Two, one -

MARK.

Did you take that 1.7-second time delay into account?

Sorry about that.

Okay. Houston, you have it.

Thank you, Jim. And I'll give you at estimate here on how long we want to hold at this point; it won't be too much longer.

Roger. It was my goof: I must have put in 3701 instead of 3723 and 501.

Roger.

Apollo 8, Houston. We have got a flight plan suggestion for you.

Go ahead.

Go ahead and delete the remainder of the P23's that you're working on now, go back to PTC attitude, and then pick up where it says 108 hours in the flight plan to pick up again there with your P23, or if you prefer to slip that time a couple of hours, if you want to get some rest in between.

I think that's a good idea; we'll do that.

Okay.

Mike, what does this do to our state vector?

Not a thing. We've looked at your state vector, and it's good.

So we didn't lose all the NAV we had just accomplished, right?

Stand by one on that, Jim. I don't know; I'm checking.

Apollo 8, Houston.

Go ahead.

Roger. I say again, your state vector is just fine; it's still ticky-poo, and the reason we're holding here is that we're checking to see if any P23 information was lost. That's reason one, and the second reason is that your W-matrix shares some computer memory cells with P01, and we are getting a clarification on the status of your W-matrix before we proceed. Over.

Roger, Michael.

We'll go ahead and start heading over to the PTC attitude.

Very good.

Do you need that high gain any more, Mike?

Apollo 8, Houston.

Roger, Frank. We're coming up on time for an oxygen purge on all three fuel cells. It might be a good time to do it while we are waiting here.

Fine.

Alright. Mike, we are going to purge the three fuel cells, oxygen only.

Apollo 8, Houston. That's enough on fuel cell number 1; if you'd start on two please.

Apollo 8, Houston. We're in low bit rate now. Last time we saw you, you were still purging. Over.

Roger. …