Spacelog Apollo 8

It is about the same. The trouble is it is pointed at us pretty well.

Roger. Understand.

Frank, what we want to do is get a radial upward burn; and as long as you can, through the optics or some other means out the window, figure out where the earth is, then use the appropriate thrusters to thrust upward, radially upward for 3 feet per second. That is what we are looking for for trajectory reasons.

Okay. Understand. I just—as I say, I just can't very well do that now. I don't want to lose sight of this S-IVB.

Roger. We concur with that. I just thought perhaps Jim, through his optics, or you could get some feel for where the earth is. That's what we want to do, is radially upward.

Okay. As soon as we find the earth, we will do it.

Thank you.

Houston. The venting on the S-IVB is terminated.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Roger. Frank, do you think you are going to be able to do this burn radially? We would like to add to its magnitude if you are going to make it in some other direction. Over.

No, I am not even sure we are going to do it yet, Mike. If I can get—we seem to be drifting away from this thing a little bit, although it is still pointing at us quite closer than I'd like.

Roger. Understand.

Apollo 8, Houston. We would like you to do some additional maneuver; it is just a question of how much and in which direction.

Okay. Right now, our gimbal angles are about—roll's about 190 and pitch is about 320 and yaw is about 340. We could certainly do it in this position. That would be alright.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Roger, Frank. You could help us out if you would explain where you are relative to the booster. In other words, with respect to the earth and the radius back there, are you above or below or one side, or where exactly is the booster relative to you?

Well, it's as I said before. We can't definitely find the earth. I think we are in front and a little bit above—a little bit above the—almost in front of the—directly in the front of the booster.

Roger. Understand; almost directly in front of the booster.

Perhaps a little bit horizontally displaced towards the—let's see—Houston, to help you, we are looking right directly above the S-IVB with the sun—it's on the right side of the S-IVB and on our—coming in our left number 1 window.

Okay. Understand; the sun is on the right side of the S-IVB and coming in your number 1 window. And are you—when you give us those angles, that means that your plus X-axis is pointed at it with those angles. Is that affirm?

Roger.

Okay.

The earth is in our plus Y, plus Z-direction now, Mike.

Thank you. Earth is plus Y, plus Z.

Right, and a little minus X.

Okay.

Houston, for information. I am looking through the scanning telescope now, and I see millions of stars; most of them—the venting from the S-IVB.

Right. Are you having any trouble telling which are the stars and which are the S-IVB particles?

Definitely; we are in sunlight, and it looks like they are all S-IVB, but we don't know. I am going to attempt a P52 realign at this time and see what I can do.

Mike, anything more on this separation maneuver you're on?

We are working on it, Frank. We are trying to compute what radially outward will be in close terms. Now, you still have the earth—as I understand plus Y and plus Z quadrant. In other words, it's down below you on your right and slightly to your rear? Is that still true?

That's right. Quite a bit to our rear and down below us. Off to the right.

Okay. Well, we—of course, in that attitude, you want to burn some upward and some to the left, and we are trying to be more precise than that. Frank, is it still about the same distance away? Are you opening or closing?

It sure is staying close to us.

Understand.

Mike, can you just tell us which way the S-IVB pitches and how far it will pitch to the sling shot maneuver attitude?

Roger. Stand by.

Frank, the S-IVB is within 10 degrees of its final attitude at this time.

Read you loud and clear. Did you get the information?

That's affirmative. I say again, we copied plus X 7.7, one-tenth in Y, no Z; roll, pitch, and yaw, 180, 310, and 020.

Roger. The burn was made at—initiated at 04:45.

Roger. Copy 04:45 —

Okay. Do you want us to transfer that to the CS—to the LM state vector or just leave it alone? You —

Affirmative, Frank. We would like you to transfer from the CSM to the LM state vector.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

How is that booster looking now? Is it drifting away rapidly, or how does it look?

Bill is the only one that can see it. Just a minute

We're 90 degrees from its X-axis, and we must be out 1000 feet and moving out.

Roger. Understand; 90 degrees from its X-axis and about 1000 feet and separating.

Plus or minus a couple of thousand.

Understand.

Houston, this is Apollo 8. I think we've got clearance now; we got a little behind on our P23's, but I suggest we go ahead and start those now.

Roger. Stand by.

We're well clear of the S-IVB now, Houston.

Roger, Bill. Thank you, and at your convenience, could you give us the PRD reading? And as far as the P23 goes, that's just fine to get started with it. It looks like your first star, which is number 14, should be good until about 05:15 GET. Over.

Roger. We'll start P23.

Houston, Apollo 8 with a PRD reading.

Go ahead.

Roger. At 4 hours 4 minutes, Commander is 0, CMP 0.64, LMP 0.02.

Got that. Copy left to right: 0, 0.64, and 0.02 at 4 hours and 4 minutes. Thank you.

Roger. At 04:53, it was 0.01, 0.64, 0.03, and negligible on the survey meter.

Roger. Thank you.

I have a beautiful view of the S-IVB and the earth here on one. I'll try and get a picture for you.

Hope so.

Apollo 8, Houston. We've got you about a minute away from the continuous vent open and 14 minutes away from the big dump, and we would like an estimate on your distance now if you can give it.

Stand by. Our distance is about 3000 feet we would estimate.

Thank you.

And we can see the vent.

Apollo 8. Houston. Say again.

We can see the vent.

Roger. Thank you.

Houston, Apollo 8.

Go ahead, Jim.

Boy, it's really hard to describe what this earth looks like. I'm looking out my center window, which is a round window, and the window is bigger than the earth is right now. I can clearly see the terminator. I can see most of South America, all the way up to Central America, Yucatan, and the peninsula of Florida. There is a big swirling motion just off the east coast, and then going on over toward the east, I can still see West Africa, which has a few clouds right now. We can see all the way down to Cape Horn in South America.

Good grief, that must be quite a view.

Yes. Tell the people in Tierra Del Fuego to put on their raincoats; looks like a storm is out there.

Roger. Will do. Do you care to give them a 24-hour forecast?

Houston, Apollo 8.

Apollo 8, Houston. Go ahead.