Spacelog Apollo 8

Hopefully, right after separation.

That sounds like a real good place. Okay. I'm sure we're going to discuss that one a little bit more, Bill. But right now those are the kind of things we're talking about doing. And on the high gain, there is still a lot of discussion about as to what—exactly what we saw and what it means. And I think it is a little too early to tell you anything about that one.

Roger. I think it's got X-ray eyes.

That's as good as some of the explanations.

Yes, I think that's what they hashed out on the ground, Ken.

Okay. I think we all agree that we don't want to try experimenting with it if we really don't know what it is we're looking at.

Roger. I've written down some numbers here that I hope will be helpful.

Okay. Fine.

And I'll give them to you in the debriefing.

Real fine.

I don't think it's any great big deal, because the antenna switching is not hard at all and the … is required to work; if it doesn't work as advertised, at least it works in a reasonable manner.

Ken, is it my imagination, or do you have the music running?

I'm sorry; say again.

Is it my imagination, or do you have the music running?

I think it's your imagination.

Uh-oh. Don't let the doctors hear that.

It's too late; he already heard you.

Apollo 8, Houston.

Go ahead, 8.

Roger. Just to make sure the urge to get red and blue filter shots of the moon haven't crept into this TV test. We have got red and blue filter shots of the moon, so you need not worry about that.

Okay. I don't think that would throw it away. I think we're trying to come up with something definitive so that postflight will have some real good data to compare with what we do on the ground for future work. I would like to have you go over and take a look at the battery Charlie, please.

I'm on my way.

Okay. Battery Charlie, that's about 36.8 volts.

Okay, 36.8. Thank you.

Roger.

Also with respect to the TV test, I would think that we could probably get a pretty good handle on the operation just by taking red and blue and polarizing shots of the earth independent of the TV, but within the same time frame or at about the same range we had the TV last time.

Okay. That's what—the second portion of this really is asking that we do this with the Hasselblad, and again we won't be using the red and blue filters so we have our baseline.

Taking a picture of the earth with the Hasselblad is no big deal because it does swing by the earth now and then. But trying to get the TV and the Hasselblad all pointed to the earth at the same time would really be tough.

Houston, Apollo 8.

Go ahead, 8.

Go ahead, 8.

We're going to hold up on the LiOH change for about a half an hour. The PCO₂ reading is low, and we don't want to wake up the CDR. It's right by his feet.

Apollo 8, Houston.

Go ahead, Houston.

Okay, Bill. We are coming up on the P52 and then the P23 sightings, and there is some concern that if we just go directly to P23 attitude that we are liable to overheat quad Charlie. So we would like to have you maneuver to place the minus X-axis towards the sun now. And I have some gimbal angles here for you. And if we take it over there and point the minus X at the sun between now and the time we have to start into the alignment, then the P23 business—we will tend to coldsoak Charlie, and then we will be able to go through the P23 operations without worrying about the temperatures.

Okay. Give me them.

Okay. Roll 183.3, pitch 136.7; yaw 13.5.

Right. 183 roll, 137 pitch, and 14 yaw.

Okay.

Actually, we worked out up here on Lovell's slide rule and got 183.25 roll.

Houston, you wanted to go to this coldsoak attitude prior to the P52, did you not?

Roger. The P23 that is coming up next—we will want to do a water dump as soon as we are through with that P23. We'll dump down to 30 percent, and this ought to be the last dump of the mission. Over.

Okay. You think that we will end up generating enough water to fill her up prior to entry.

Affirmative.

Okay. We are at that attitude you gave us, so we stopped the roll a little bit short. We're more like 150 degrees roll right now.

Okay, Bill. On that water dump, we expect to have 90 percent.

Houston, Apollo 8. Over.

Apollo 8, Houston. Over.

Apollo 8, Houston. Go.

Roger. We are done with the P52 and arranged for the P23. Was there any constraint you wanted, for length of time you wanted to stay in this attitude?

Negative, Bill. When you are finished with P23, we will go back into PTC.

Okay. We are going to maneuver for P23 now.

Roger. We are watching your tank pressures.

Okay. Thank you. We will do an optical first and then do the P23.

Apollo 8, Houston. We are handing over to Madrid in about 15 seconds. Over.

Roger. And good morning, Jerry, or good afternoon, or whatever it is.

Good morning, Jim. It's about 6:30 in the morning.

Apollo 8, Houston. How do you read?

Loud and clear. How us?

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Morning, Frank. Looks like we have lost the transducer on the primary radiator OUT temperature. We are showing an off scale high. The rest of the loop looks real fine, though. When you get a chance, would you take a look at it and see if you're in the same position. Over.

Which one is it?

Primary radiator OUT temperature.

Ours is showing 100 off scale high, also.

Houston, Apollo 8. Over.

Apollo 8, Houston. Go.

Apollo 8, Houston. Go.

Roger. About this RAD output temp: does your telemetry show that it happened all of a sudden?

That's affirmative, Bill.

Okay. I'm on malfunction 23, step 2. It looks to me like there is a small possibility we might be boiling, but I doubt it. So you just want to hop over to step 4 and consider that a closed case.

Apollo 8, Houston.

Go ahead, Houston.

Roger. Frank, all of your primary loop temperature readings look just fine. Your EVAP IN temperatures are normal and indicate you are getting normal mixing.

Okay. Thank you.

Apollo 8, Houston.

Go ahead, Houston. Apollo 8.

Roger. For the P23 attitude that you are in right now, your quad tank temperatures are better than we expected. We're still monitoring, and it's looking good.

Thank you. After we complete this, do you want us to return to the PTC attitude? Is that correct?

That is affirmative, Frank.

Would you have someone get up the gimbal angles for us to point the X-axis at the earth at the TV time, please?

Wilco.

Also, Jerry, I would like to know our range and velocity at TV time.

Roger, Frank. You want the range and velocity at TV time.