Spacelog Apollo 8

Yes, I agree.

You ought to give those guys a chance to go back to sleep and calibrate those things.

Apollo 8, Houston. We've just passed 25 percent and you can terminate your waste water dump, please.

Okay. Will do.

Believe it or not, our gage is 5 percent behind yours.

Yes, John said that he has been noticing that.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Yes. We are going to switch antennas from Madrid to Goldstone in about 3 minutes. You should hear the glitch.

Thank you.

Houston, Apollo 8.

Apollo 8, Houston. Over.

Roger. Just for information, would the perigee reading and NOUN 42 be such a big minus number for such a small burn? We are reading minus 03137 now.

Roger. Understand; NOUN 42 perigee reads minus 03137. Over.

Roger. We are going to PROGRAM 30 after you give us the target load, and I didn't think there would be that much of a change for such a small burn.

Apollo 8, Houston. Over.

Go ahead, Houston. Apollo 8.

Roger, Frank. We don't think there's any problem or any funnies in this perigee prediction of minus 03137. It's a Keplerian prediction, and it's not very accurate. Now we have taken your vector from the downlink and run it through a make-believe external DELTA-V maneuver down here, and we get precisely the correct answer. Over.

Roger. Understand that you figure just because of the conics solution that it comes up.

That's affirmative. The Kepler solution is just pretty gross.

Okay. I was just kind of curious. I could see differences when we were talking about LOI burns, but this being such a short one, I thought it wouldn't be that much difference. I understand.

Mike, this is Frank.

Go ahead.

You are monitoring and seeing if we get any inadvertent engine firing all the time, aren't you?

Well, we can't tell when you're in low bit rate. When you're in high bit rate, that's right.

Okay. If we crank up high bit rate and just have you take a checkout look at them?

Okay.

Apollo 8, Houston.

Go ahead.

Roger. Since you're on OMNI D (Dog) at this time, we're sort of 180 out of phase for the high-gain lock antennas. As soon as we can get high-gain lock, then we'll —

Okay. We will take the antennas and get on the high gain as soon as we can.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Apollo 8, Houston.

Go ahead.

Roger. We are going to be doing a ranging sequence; if we can eliminate voice for a couple of minutes, we would appreciate it.

Roger. We will.

Apollo 8, Houston. Over.

Go ahead, Houston.

Roger. Our ranging is complete, and we have been monitoring your thruster firings, and they show what appears to be very normal damp activities. Over.

Thank you. I guess it was associated with the water vent.

Apollo 8, Houston. Over.

Go ahead, Houston. Apollo 8.

And your manual attitude switches in RATE COMMAND.

Right.

Apollo 8, Houston.

MARK.

One minute to ignition. Over.

Roger. We concur.

Apollo 8, Houston.

MARK.

Twenty seconds to ignition.

Roger.

Houston, Apollo 8.

Go ahead, Jim.

Roger. We burned on time, 14 seconds, attitude nominal. Our residuals were plus 2 in VG_X, minus 1 in VG_Y nothing in VG_Z. Our EMS stopped about 6.2 and continued counting after the burn.

Roger. Understand 14 seconds, burn on time, nominal attitude, two-tenths X, one-tenth Y, and nothing—minus one-tenth Y, and nothing Z; and you put 6.2 on the EMS, and it continued to count after the burn. Is that affirmative?

No. We put the burn—we put the burn DELTA-V in the EMS, and after the burn, it was still counting.

Roger. Understand.

Still counting up.

Understand.

Okay, Houston. We transferred the state vector to the LM slot.

Roger, Jim. Thank you, and I still don't understand you on this EMS. Counted down from 5 to zero normally and then continued through zero in a negative way, and now it's reading minus 6.2? Is that affirmative?

Roger. That's right. It was counting up when we shut it off. Last time I saw it, it was 6.9. Now Frank just put it on AUTO again with the DELTA-V function switch in DELTA-V, and it jumped six-tenths. Then he tried the second time, and it stayed at zero so we really don't know what the story is.

Roger. Understand you.

Houston, this is Apollo 8.

Go ahead, Frank.

I guess you want us to resume PTC, right?

Stand by.

Apollo 8, Houston.

Go ahead.

We'd like you to resume the PTC attitude, pitch 010, yaw 045; and then come out of it again for your P23 that you're scheduled for about another hour and 10 minutes, in another hour and 10 minutes.

Roger.

Mike, this is Frank. Is this TV still scheduled for 104:50?

That's affirmative, Frank, if you can manage it.

Okay.

How's it going with the TV, Frank? Are we—can the networks count on having it on schedule? Over.

Yes, we can have it on schedule. We don't have much to do, but we'll perform for you.

Okay. We have a bunch of filter experts standing by if you need any advice.

Well, we're just going to have to just do it inside today because there are no good shots of the moon or the earth; the sun's too darn bright.

I think it's raining out there.

Yes, that's what we thought.

Houston, Apollo 8.

Apollo 8, Houston. Go ahead.

Roger. On this EMS, when I put it in DELTA-V, it was reading zero; then I switched to AUTO. Sometimes it will count to 19 or 20 feet per second. I guess that is what happened.

Roger. Understand when you put it to AUTO, it maybe will keep counting up to as much as 19 to 20 feet per second.

Just when you put it to AUTO; it will start counting on some occasion, by itself.

Mike, we're ready when you are.

We're ready.

Say again.

Yes, we're ready, Frank. We're all squared away and eagerly standing by.