Ken Mattingly (CAPCOM)

Affirmative. And I'll have one, two, three PAD's to read to you.

Bill Anders (LMP)

Standby. Okay. You've got P00 in ACCEPT.

Ken Mattingly (CAPCOM)

Okay, thank you. And just a minute, I'll be with you on the PAD's. They'll be three maneuver PAD's, one of them MCC 4.

Bill Anders (LMP)

Houston, this is Apollo 8. We're ready to copy if you read.

Bill Anders (LMP)

Okay. I thought maybe we had lost COMM here for a second.

Ken Mattingly (CAPCOM)

Okay. Apollo 8, let me just read you midcourse correction number 4.

Ken Mattingly (CAPCOM)

Alright. Midcourse correction number 4: the RCS/G&N 62888 November Alfa November Alfa 060:59:54.30 minus 00012, minus 00011, plus 00012 031 008 323 November Alfa, plus 00618 00020 011 00020 17 2965 308 Alpha-Centauri, up 073, left 34. For the stars, it will be the primary Sirius, secondary Rigel, 129 155 010. Over.

Bill Anders (LMP)

Roger. MCC 4, RCS/G&N 62888 NA, NA 060:59:54.30, minus 00012, minus 00011, plus 00012 031 008 323, NA. Are you with me so far?

Bill Anders (LMP)

Plus 00618 00020 011 00020 17 2965 308 Alpha-Centauri, up 073, left 34, primary Sirius, secondary Rigel 129 155 010. Over.

Ken Mattingly (CAPCOM)

That's correct, Apollo 8.

Bill Anders (LMP)

And what else have you got?

Ken Mattingly (CAPCOM)

Okay. I've got one for pericynthian plus 2, and it's a minimum DELTA-V solution.

Ken Mattingly (CAPCOM)

Okay. That's pericynthian plus 2. RCS/G&N 62871 November Alfa, and stand by one. Okay. We'll pick up with a pitch trim and yaw trim of not applicable; time 071:07:22.16, minus 00468, plus 00254, plus 00181 173 101 027 November Alfa plus 00187 00563 515 00563 01 3169 198 044, down 044, left 45, plus 1100, minus 02500 12967 36198 137:01:53, primary Sirius, secondary Rigel 129:155:010, four jets plus X. This assumes execution of midcourse correction number 4 and uses the same alignment as midcourse correction 4. over.

Bill Anders (LMP)

Roger. Pericynthian plus 2, minimum DELTA-V RCS/G&N 62871, NA, NA. 071:07:22.16, minus 00468, plus 00254, plus 00181 173 101 027, NA, plus 00187 00563 515 00563 01 3169 198 044, down 044, left 45, plus 1100, minus 02500 12967 36198 137:01:53, primary Sirius, secondary Rigel, 1.29 155 010, four jets plus X, assumes MCC 4 with same alignment. Over.

Ken Mattingly (CAPCOM)

That is correct, Apollo 8.

Bill Anders (LMP)

Houston, Apollo 8. Confirm that boresight star and SPA are exactly the same number and not typographical error.

Ken Mattingly (CAPCOM)

Roger, Apollo 8. They are checking that. Apollo 8, the computer is yours. You can take it back.

Bill Anders (LMP)

Roger. Going to BLOCK.

Bill Anders (LMP)

Houston, this is Apollo 8. Do you copy?

Ken Mattingly (CAPCOM)

I do now loud and clear. I've got one more PAD for you, and the confirmation that those boresight star number and the pitch angle are correct at 44.

Ken Mattingly (CAPCOM)

Roger. And we are ready to do our P52 preferred alignment at this time. Are you ready?

Bill Anders (LMP)

Okay. We are ready to copy.

Ken Mattingly (CAPCOM)

Okay. This is a pericynthian plus 2 for a fast return. This will be SPS/G&N 62871, minus 161, plus 129 071:06:42.07, plus 45224, minus 06216, minus 18712 001 287 351, November Alfa plus 00187 49336 603 49118 112 038 296, earth up 010, right 37, plus 1475, plus 06500 13239 36913 106:09:23; primary star Sirius, secondary Rigel 129 155 010, no ullage, assumes execution of midcourse correction 4 and uses the same alignment. The time for MCC 5 for GERU determination—that's Golf Echo Romeo Uniform—this will be a GET of 83:02; use P37 NC-4, steps 1 through 10 and NC-8 steps 3 and 4. I say again, use P37 November Charlie 4 steps 1 through 10 and November Charlie steps 3 and 4; velocity 400K for corridor control chart 36507. Over.

Bill Anders (LMP)

Houston, Roger. This is Apollo 8. You copy?

Bill Anders (LMP)

Roger, Houston. This is Apollo. How you read?

Ken Mattingly (CAPCOM)

Okay. Loud and clear, Bill.

Bill Anders (LMP)

Okay, Ken. Pericynthian plus 2, fast return SPS/G&N 62871, minus 161, plus 129 071:06:42.07, plus 45224, minus 06216, minus 18712 001 28 603 49118 112 038 296 earth up 010, right 37, plus 1475, plus 06400 1323 936 913 106:09:23, primary Sirius, secondary Rigel 129 155 010, no ullage, assume MCC 4 same alignment, MCC 5 GERU determination GET 83:02 P37 NC-4 0 through 10 and copy NC-8, 3, and 4. Velocity at 400K 36507. Over.

Ken Mattingly (CAPCOM)

Okay, Apollo 8. That's correct with one exception: in the PAD format under longitude NOUN 61, that is plus 06500. Over.

Bill Anders (LMP)

Roger. That's what I have, plus 06500.

Ken Mattingly (CAPCOM)

Okay. That's correct, Apollo 8.

Bill Anders (LMP)

And we're ready to copy whatever else you have.

Ken Mattingly (CAPCOM)

Apollo 8, let's go back and confirm on your minimum DELTA-V pericynthian plus 2 that the pitch column is 101; that's the fifth block down.

Bill Anders (LMP)

Roger. Pitch. Roger, pitch 101.

Ken Mattingly (CAPCOM)

Okay. Thank you very much. And the item we have left to go is that we'd like to get with you on how you want to handle the problem with windows on REV 2.

Bill Anders (LMP)

Okay, Houston. Stand by on that, please.

Ken Mattingly (CAPCOM)

Roger.

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Spoken on Dec. 24, 1968, 1 a.m. UTC (56 years ago). Link to this transcript range is: Tweet

Bill Anders (LMP)

Houston, this is Apollo 8. We want you to come up with a suggested redline for RCS usage during lunar orbit, also, please.

Bill Anders (LMP)

And for your information, Houston, when the sun is shining on window 5, it's pretty hazy; window number 1 is a little bit better.