Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Frank Borman (CDR)

Go ahead, Houston. Apollo 8 here.

Mike Collins (CAPCOM)

Roger. We have been having a little antenna problem on the ground here. We are reading you now with a lot of noise in the background. How me?

Frank Borman (CDR)

Loud and clear, Michael.

Mike Collins (CAPCOM)

Roger. Frank, we are still trying to get a little bit better COMM here. Stand by; you're unreadable.

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Frank Borman (CDR)

Loud and clear, Houston. Apollo 8.

Mike Collins (CAPCOM)

I understand you are reading us loud and clear; we are barely reading you. Would you go to P00 in ACCEPT, please? We are going to send you a P27 update.

Frank Borman (CDR)

Roger. Going to P00 and to ACCEPT, Houston.

Frank Borman (CDR)

We are in P00 and ACCEPT.

Mike Collins (CAPCOM)

Apollo 8, Houston. You are not readable. We are going to delay the P27 until we get a little bit better lock on you.

Mike Collins (CAPCOM)

As long as you're reading me okay, Frank, I'll bring you up to date on a couple of things. The P27 which we will be sending you is a state vector update going to the LM slot, and we'd like to—as per plan—to transfer that to the CSM slot by a VERB 47 ENTER, and we would like to just remind you that prior to doing your VERB 47 ENTER manually select P00 and wait for the computer activity light to go out. Did you copy? Over.

Frank Borman (CDR)

Roger. Roger. We copy.

Mike Collins (CAPCOM)

Okay, Frank. Are you still reading me loud and clear? Over.

Frank Borman (CDR)

Roger. Loud and clear.

Mike Collins (CAPCOM)

Alright. I'll go ahead with a map update when you're ready to copy.

Frank Borman (CDR)

Okay. Can you hold off a minute?

Mike Collins (CAPCOM)

Apollo 8, this is Houston. How are you reading now?

Frank Borman (CDR)

Go ahead, Houston. This is Apollo 8.

Mike Collins (CAPCOM)

Apollo 8, this is Houston with a map update. Are you ready to copy?

Mike Collins (CAPCOM)

Roger. Apollo 8, Houston. Your map update for REV 4/5: LOS 76:59:59, sunrise 77:09:06, prime meridian 77:15:47, AOS 77:45:50, sunset 78:22:03; IP-1 position time for control point 2, 77:29:42; IP-1 time closest approach for target B-1, 78:10:25. Over.

Frank Borman (CDR)

We'll have to get that data later on.

Mike Collins (CAPCOM)

We'll try it again later, Frank.

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Bill Anders (LMP)

Do you want to take this NAV sighting?

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Bill Anders (LMP)

Roger, Houston. How do you read?

Mike Collins (CAPCOM)

Reading you a lot better, Bill. How are you reading me?

Bill Anders (LMP)

I'm reading you five—loud and clear, and you copying our low bit data to record these tracking passes? Over.

Mike Collins (CAPCOM)

That is affirmative. We are getting low bit data now.

Bill Anders (LMP)

Okay. I've played—run the tape recorder back to the beginning. We have quite a bit of high bit, so all you'll have to do is start recording when you are ready.

Mike Collins (CAPCOM)

Roger. Stand by one, Bill.

Mike Collins (CAPCOM)

Apollo 8, Houston. Stand by one on the tape recorder dump. We would like you to look at your steam pressure. We think that the primary evaporator may have dried out, and if the steam pressure shows off-scale low, would you please close the back pressure valve and reservice the evaporator? Over.

Mike Collins (CAPCOM)

Apollo 8, Houston. We are ready to send you the P27 LM state vector update when you are ready. Over.

Frank Borman (CDR)

You will have to wait until this tracking exercise is over with, Mike.

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Were you calling? Over.

Bill Anders (LMP)

Roger. You can go ahead now and give you computer and get the updates, and let's get going on the PAD messages.

Bill Anders (LMP)

It is in P00 and ACCEPT.

Bill Anders (LMP)

Okay, Houston. Are you ready to talk about the water boiler problem?

Mike Collins (CAPCOM)

Roger. We copy you in P00 and ACCEPT, and we are sending you a P27 LM state vector. On the water boiler, it looks to us like the evaporator has been reserviced. How does it look to you? Over.

Bill Anders (LMP)

Roger. I reserviced it, put it to AUTO—H2O flow to AUTO; and the steam pressure went to zero again. So I tried reservicing it the second time for 1 minute, and again no results. I'm in the present process of closing the back pressure valve manually. Over.

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Mike Collins (CAPCOM)

Roger. Understand you tried to reservice it twice, both times steam pressure has gone to zero, and now you are closing the back pressure valve manually.

Bill Anders (LMP)

Roger. Each time I have reserviced it, the steam pressure came up to about 0.07 to 0.1; but as soon as the steam and water were put to AUTO, the steam pressure went right back down again.

Mike Collins (CAPCOM)

Roger. We copy, and we are reading you loud and clear now, Bill. On your map update, did you copy that that I gave you previously?

Jim Lovell (CMP)

Negative. We have not copied it yet.

Mike Collins (CAPCOM)

Okay. I have it for you again when you are ready to copy.

Mike Collins (CAPCOM)

This is a map update for REV's 4/5: LOS 76:59:59, sunrise 77:09:06, prime meridian 77:15:47, AOS 77:45:50, sunset 78:22:03; remarks: IP-1, acquisition time for CP2 is 77:29:42, IP-1 time closest approach for target B-1 78:10:25. Over.

Mike Collins (CAPCOM)

That's right, and the prime meridian time is 77:15:47, and you got your computer back. We've got a good P27 update.

Frank Borman (CDR)

Okay. We will go to P00 and TRANSFER.

Frank Borman (CDR)

Houston, do you have a TEI 5 for us?

Mike Collins (CAPCOM)

We are working on it now, Frank. Have it for you momentarily.

Mike Collins (CAPCOM)

Roger. On your back pressure valve, we would like to know how long after you closed the back pressure valve the first time—how long it was from the time you closed it until the time you started the reservicing? We would like for you to wait about 15 minutes to prevent any ice from forming due to flash freezing. Over.

Bill Anders (LMP)

Okay. I started immediately to reservice it.

Mike Collins (CAPCOM)

Apollo 8, Houston. We show that you closed it this last time about 4 minutes ago, so we would like you to wait another 15 minutes and then try to reservice it again at that time and then go to AUTO. Over.

Mike Collins (CAPCOM)

Roger. Thank you. The TEI 4 PAD which you have is still valid. We will have a TEI 5 PAD for you shortly.

Bill Anders (LMP)

Roger. Be advised we are presently in steam pressure MANUAL, and we're in H2O flow AUTO, and are now in H2O flow OFF, as of about 5 seconds ago.

Mike Collins (CAPCOM)

Roger. We copy that, Bill. And we confirm that's a good configuration.

Bill Anders (LMP)

Right now, I've got the H2 flow OFF. Do we stay that way?

Mike Collins (CAPCOM)

Apollo 8, Houston. On your television update, we propose that you start the TV at the flight plan time of 85 hours 37 minutes and simply extend the stop time a few minutes. You're currently scheduled to stop at 86 hours, and we would like to keep it going until the terminator, which should be approximately 86:14. Over.

Mike Collins (CAPCOM)

Frank, I know you are busy up there. We've got the daily news for you whenever and if ever you'd like to hear it.

Mike Collins (CAPCOM)

Apollo 8, this is Houston.

Mike Collins (CAPCOM)

I have the TEI 5 PAD for you whenever you are ready to copy.

Mike Collins (CAPCOM)

Okay. TEI 5, SPS/G&N: 47 correction—45701, minus 043, plus 116 079:21:26.03. Are you with me so far?

Mike Collins (CAPCOM)

Plus 31171, minus 00767, minus 00214 180 017 001, not applicable, plus 00188 31181 259 31003. Are you with me? Over.

Mike Collins (CAPCOM)

Roger. 40 2711 398 033, down 043, left 23, plus 0832 minus 16500 12956 36208 146:39:44; north set of stars remain Sirius and Rigel; roll, pitch, and yaw remain same angles: 129 155 010, ullage remains two quads for 20 seconds, quads B and D; horizon on 4-degree line at TIG minus 3 minutes. Over.

Frank Borman (CDR)

Roger. Here we go: TEI 5, SPS/G&N 45701, minus 043, plus 116 079:21:26.03, plus 31171, minus 00767, minus 00214 180 017 001, NA, plus 00188 31181 259 31003 40 2711 398 033, down 043, left 23, plus 0832, minus 16500, plus 12956 36208 146:39:44. Set stars are the same; ullage—we'd like—do you have any objection to using four quads for 15 seconds?

Mike Collins (CAPCOM)

No objection to four-quad ullage, Apollo 8.

Frank Borman (CDR)

Okay. We'd like to just go ahead and use four quads all times, unless we get a lot shorter on fuel than we are now.

Frank Borman (CDR)

And is that 15 seconds?

Mike Collins (CAPCOM)

Affirmative: 15 seconds, four quads.

Frank Borman (CDR)

Thank you, and horizon is 4 degrees at minus —

Mike Collins (CAPCOM)

That readback is correct, Frank, and we'd like to advise that the voice quality on that high bit rate is excellent. Over.

Frank Borman (CDR)

Thank you. Mike, it's four quads for 15 seconds. Is that right?

Mike Collins (CAPCOM)

That is affirmative, Apollo 8: four quads for 15 seconds.

Frank Borman (CDR)

Go ahead, Houston. Apollo 8.

Mike Collins (CAPCOM)

Roger for Bill. He can go ahead and do his standard reservice on the water now. It's looking good.

Frank Borman (CDR)

Okay. You want us to reservice it now?

Mike Collins (CAPCOM)

That's affirmative, and upon completion, go back to AUTO.

Mike Collins (CAPCOM)

Roger. We are still dumping your tapes. The voice quality on high bit is coming through superb, and you are GO for the next rev. And we would like to get a brief status report on your rest between 60 hours and LOI 1, just to fill in some information for us.

Frank Borman (CDR)

We only got a couple hours rest.

Frank Borman (CDR)

We're tired right now, but we will have to wait until TEI before we get back to the regular cycle.

Mike Collins (CAPCOM)

Alright. I suspect you're right.

Bill Anders (LMP)

Okay, Houston. The water boiler has been reserviced, back pressure valve CLOSED for 1 minute, water ON for 2, and it's now steam pressure AUTO, H2O flow AUTO.

Bill Anders (LMP)

If we have a problem, a similar problem, again on the back side in the sunlight, might be a good idea to crank the secondary loop until we have AOS. What do you think about that?

Jim Lovell (CMP)

Go ahead, Houston. Apollo 8.

Mike Collins (CAPCOM)

Roger, Jim. In regard to your evaporator, we feel that if you do have a similar problem next time on the back side in sunlight, check the evaporator outlet temperature, and if it gets above 60, we concur that it would be a good idea to bring up the secondary loop. Over.

Mike Collins (CAPCOM)

Apollo 8, Houston. When we say bring up the secondary loop, we mean bring up the evaporator only on the secondary loop. Copy?

Bill Anders (LMP)

Houston, Apollo 8. We got time for a little news?

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

Bill Anders (LMP)

I say how about a little bit of that news you promised?

Mike Collins (CAPCOM)

Roger. We got the Interstellar Times here, the December 24 edition. Your TV program was a big success. It was viewed this morning by most of the nations of your neighboring planet; the earth. It was carried live all over Europe, including even Moscow and East Berlin, also in Japan and all of North and Central America and parts of South America. We don't know yet how extensive the coverage was in Africa. Are you copying me all right? Over.

Frank Borman (CDR)

You are loud and clear.

Mike Collins (CAPCOM)

Good. San Diego welcomed home today the Pueblo crew in a big ceremony. They had a pretty rough time of it in the Korean prison. Christmas cease-fire is in effect in Viet Nam, with only sporadic outbreaks of fighting. And if you haven't done your Christmas shopping by now, you better forget it.

Mike Collins (CAPCOM)

A couple of Oilers made the All-Star team, Webster and Farr.

Mike Collins (CAPCOM)

And that's about all our news. How about your news?

Frank Borman (CDR)

Well, we'll be looking forward to a big burn here shortly.

Jim Lovell (CMP)

Mike, I think I can say it without contradiction, it's been a mighty long dry spell up here.

Mike Collins (CAPCOM)

I guess you can say anything you like without contradiction.

Frank Borman (CDR)

When can we dump water, Houston?

Frank Borman (CDR)

When can we dump water?

Mike Collins (CAPCOM)

We will get you the number after a while on your water dump. It looks like the quantity isn't increasing very slightly, and we're considering not only the quantity in regard to the dump, but also its effects on the trajectory relative to TEI and so forth, but we will have a good answer for you shortly.

Frank Borman (CDR)

We are not just thinking about the waste water tank: we're thinking about some other kind of water that has to get dumped out of the spacecraft, slightly used water.

Mike Collins (CAPCOM)

Roger. We have about three and a half minutes to LOS. We give you back the DSE under your control, and in regard to your water dump, we are tentatively predicting a waste water tank dump at about 80 hours GET and any other dumps are at your discretion, any time you would like to make them.

Mike Collins (CAPCOM)

People listening to the high bit rate down here say it's like sitting in your living room listening to good hi-fi.

Frank Borman (CDR)

Sounds like a good idea.

Mike Collins (CAPCOM)

Apollo 8, Houston. Coming up on 2 minutes to LOS. We got a good reservice on the primary evaporator, and everything is still looking very good down here.

Mike Collins (CAPCOM)

Apollo 8, Houston. One minute to LOS. Are you still reading us loud and clear?

Frank Borman (CDR)

Loud and clear. Loud and clear.

Mike Collins (CAPCOM)

Okay, fine. We've been noticing a little bit of increase in our background noise as you approach backside.

Frank Borman (CDR)

Roger. We had to go off the high gain. That's why.

Mike Collins (CAPCOM)

Have a good backside; we'll see you next time around.

Mike Collins (CAPCOM)

Apollo 8, this is Houston. Over.

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Spoken on Dec. 24, 1968, 5:10 p.m. UTC (55 years, 10 months ago). Link to this transcript range is: Tweet

Bill Anders (LMP)

Houston, Apollo 8. Go ahead.

Mike Collins (CAPCOM)

Roger. Read you loud and clear. Welcome back.

Bill Anders (LMP)

Roger. Looks like the evaporator—looks like the evaporator is holding okay, or at least it is trying to. It dropped the temperature down to about 32, and now it's come back up again and stabilized at about 42 degrees.

Jim Lovell (CMP)

Roger. Houston, this is Apollo 8. What we are doing on the control point tracking—I managed to look for a CP-1 at the same time we were trying to do a CP-2 on this rev. I picked up two marks which are just as small, but more easily recognizable, than the ones that were given to me. I know that I can repeat the process and pick the same small point on the next rev. Now I can try to look for the control points that are written down, but I think that I have better control over the ones that we have.

Mike Collins (CAPCOM)

Roger, Jim. Understand. We'll check that for you.

Jim Lovell (CMP)

Roger. One more point: the control point times which you have given me are a little bit off, and I can notice by comparing these maps that these maps are not too well aligned either.

Mike Collins (CAPCOM)

Roger. These two small points that you can repeat your marks on: will you be able to identify those precisely on a map? Over.

Jim Lovell (CMP)

That's affirmative; that is why I picked them. They are both—they're both very prominent features, and they are both very small craters about the same size as the ones we are looking for, but I can pinpoint them on a map.

Mike Collins (CAPCOM)

Apollo 8, Houston. Over.

Jim Lovell (CMP)

Roger. One more comment: as it offered a lot of controversy at data priority meetings, it looks like 10 degrees pitch up is the best attitude to obtain the horizon so that you can follow the landmark down through the scanning telescope. If you pitch down any more, full up trunnion will not get the horizon, and the horizon is a great help in leading yourself into the control point.

Mike Collins (CAPCOM)

Jim, we concur with your use of the two small craters which you can repeatedly mark on and find on the map; and also if you will give us your new latitudes and longitudes, we can compute for you a time of closest approach to those points with the spacecraft 10 degrees pitched-up. Over.

Jim Lovell (CMP)

Roger, Houston. CP-1 latitude minus 606269, longitude over 2, minus 78954, altitude plus 00152; for CP-2 latitude minus 09638, longitude over 2, plus 81691, altitude minus 00007. I tried to get CP-3 at the same pass, but I let it go by to get set up for this first track at the landing site.

Mike Collins (CAPCOM)

Roger, Houston. CP-1: would you say again the latitude, and on CP-2, say again the longitude CP-2, please?

Jim Lovell (CMP)

Roger. CP-1 latitude minus 06269; that is the latitude; and for longitude over 2 for CP-2, plus 81691.

Mike Collins (CAPCOM)

Okay. We copied them. Thank you.

Jim Lovell (CMP)

And it appears that resolve medium is a very good combination to track.

Mike Collins (CAPCOM)

Roger. I understand. Resolve medium.

Jim Lovell (CMP)

And it appears so far, Houston, that no spacecraft pitch motion is required to get five marks on the target in plenty of time.

Mike Collins (CAPCOM)

Roger. I understand you require no spacecraft motion to get five marks.

Mike Collins (CAPCOM)

Roger. I am about 15 minutes early with the TEI fix update and the map update. I will have them here whenever it's convenient for you to copy.

Bill Anders (LMP)

Okay. Just a little bit, Mike.

Mike Collins (CAPCOM)

Roger. We would like to ask you to stop using AUTO OPTICS on the pseudo landing site. It's necessary that we send you up a P27 to update the RLS values stored in the computer. Over.

Jim Lovell (CMP)

Roger. I found … I went to MANUAL OPTICS on B-1.

Mike Collins (CAPCOM)

Apollo 8, Houston. Over.