Ronald Evans (CAPCOM)

Tranquility Base, Houston.

Ronald Evans (CAPCOM)

Roger. For your P57 …, we did a little looking around, and it looks like Sirius and Rigel out at detent 6 would be real good on that. The Sun angle on Sirius is about 43 degrees, and on Rigel, it's about 55 degrees. Over.

Buzz Aldrin (LMP)

Roger, Houston. The only trouble is that the Sun is in number 5, the closed one. And it appears to also be close enough to detent 6 to shine on the far side of the cone. And it completely obscures detent 6. I'm—unable to use that at all.

Ronald Evans (CAPCOM)

Okay. We understand it now, and thank you.

Ronald Evans (CAPCOM)

Tranquility, Houston. For your information, the circuitry looks real fine on that ascent engine arm circuit breaker.

Buzz Aldrin (LMP)

Roger. I don't think I could get it out now if I wanted to.

Buzz Aldrin (LMP)

And it looks like in detent 6 I can pick up Venus right at the fringe, but I can't get anything else.

Neil Armstrong (CDR)

And by the way, Houston, our EVA antenna did retract.

Ronald Evans (CAPCOM)

Roger. Mighty fine. Thank you.

Ronald Evans (CAPCOM)

Roger. It looks like you're going to have to reposition the radar here. We suggest you may want to start your TIG minus 45 minute—that point in the checklist at about TIG minus 50. Over.

Buzz Aldrin (LMP)

Roger. Why do you think I need to move the radar?

Ronald Evans (CAPCOM)

Well, we thought that you probably wouldn't be able to get the star there.

Buzz Aldrin (LMP)

On the rear detent, the radar can be pointing plus X, and I'm—I'll be using right rear. That's okay.

Ronald Evans (CAPCOM)

Roger. That's fine then.

Ronald Evans (CAPCOM)

Tranquility Base, Houston. I have one more late checklist change there on the rendezvous radar position for lift off. Over. From page Surface 57.

Ronald Evans (CAPCOM)

Okay. On Surface 57 there on your VERB 21 NOUN 73 trunnion, leave it 180; the shaft we'd like 335. Over.

Buzz Aldrin (LMP)

Roger. Understand. Shaft 335.

Ronald Evans (CAPCOM)

Roger. And if the steerable doesn't quite hack it on lift off, looks like the forward OMNI is good for about 30 to 60 seconds after lift off. And then the aft OMNI antenna is good for the rest of the ascent. Over.

Buzz Aldrin (LMP)

Houston, we've got two angles here at 3 minutes in ascent. Would you confirm those? Pitch 134 and yaw minus 32. Over.

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Ronald Evans (CAPCOM)

Tranquility Base. Roger. We verify; those are correct.

Ronald Evans (CAPCOM)

Tranquility Base, Houston.

Ronald Evans (CAPCOM)

Roger. Eagle's looking real fine to us down here. We have a fairly high confidence that we know the position of the LM. However, it is possible that we may have a planes change, but the—In the worst case, it would be up to 30 feet per second. And, of course, we don't expect that at all.

Buzz Aldrin (LMP)

Houston, Tranquility Base. Since we've still got plenty of time I think I'll go ahead and recycle on this 604.

Ronald Evans (CAPCOM)

Tranquility. Roger. That's okay with us, and we assume that the primary canister is still aboard. Is this correct?

Buzz Aldrin (LMP)

We have one primary canister on board and one secondary. The other primary is—out in front of the Z—plus—Z pad. Over.

Ronald Evans (CAPCOM)

Roger. We copy. Thank you.

Neil Armstrong (CDR)

Ready for the blue bag —

Buzz Aldrin (LMP)

The PGNS looks consistent today.

Ronald Evans (CAPCOM)

Hey, that's affirmative, by gosh. Looking great.

Buzz Aldrin (LMP)

Houston, did you copy NOUN 05, and are you looking at 93? Over.

Ronald Evans (CAPCOM)

Tranquility Base. It's beautiful.

Buzz Aldrin (LMP)

I know where the star is; I'm not sure the PGNS knows where gravity is.

Buzz Aldrin (LMP)

Houston, these are your angles, not ours.

Buzz Aldrin (LMP)

Stand by for some change or modification in the angles.

Ronald Evans (CAPCOM)

Tranquility Base, Houston. Recommend 334, and that should just keep it out of the limit.

Michael Collins (CMP)

Houston, Columbia on OMNI D Delta. Over.

Ronald Evans (CAPCOM)

Columbia, Houston. Roger. Loud and clear. And if you would like to take it down, we have the latest position of Tranquility Base. Over.

Michael Collins (CMP)

Go ahead.

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Spoken on July 21, 1969, 4:59 p.m. UTC (55 years, 3 months ago). Link to this transcript range is: Tweet

Ronald Evans (CAPCOM)

Roger. It's just west—at west crater, Juliett 0.5, 7.7. Over.

Michael Collins (CMP)

Understand that it is just west of the crater Juliett 0.5 and 7.7. Is that correct?

Ronald Evans (CAPCOM)

Columbia, Houston. That is correct.

Ronald Evans (CAPCOM)

Tranquility Base, Houston.

Ronald Evans (CAPCOM)

Roger. Because of the lower load with the rendezvous radar off, we'd like to have battery 5 and 6 on the line now, 1 and 3 off. Over.

Ronald Evans (CAPCOM)

Columbia, Houston. You're still looking mighty fine to us.

Michael Collins (CMP)

Columbia is holding inertially at lift off attitude, my DAP is configured as per my procedures at a time of 124 02.

Ronald Evans (CAPCOM)

Columbia, Houston. Roger. We copy you.

Ronald Evans (CAPCOM)

Tranquility, Houston. Say again.

Neil Armstrong (CDR)

Houston, we were not calling.

Ronald Evans (CAPCOM)

Roger. Columbia, was that Bravo and Delta roll? Over.

Ronald Evans (CAPCOM)

Columbia and Tranquility, I'll give you a Mark at 20 minutes to go, and that's in about 20 seconds.

Ronald Evans (CAPCOM)

Tranquility Base, Houston.

Ronald Evans (CAPCOM)

Roger. Just a reminder here, we want to make sure you leave the rendezvous radar circuit breakers pulled. However, we want the rendezvous radar mode switch in LGC, Just as it is on Surface 59.

Ronald Evans (CAPCOM)

Tranquility Base, Houston.

Ronald Evans (CAPCOM)

Roger. Our guidance recommendation is PGNS, and you're cleared for takeoff.

Buzz Aldrin (LMP)

Roger. Understand. We're number 1 on the runway.

Neil Armstrong (CDR)

Houston, Tranquility. We're not sure that we got number 2 tank to fire. It's still showing a high pressure.

Ronald Evans (CAPCOM)

Roger. We confirm that. Try it again.

Buzz Aldrin (LMP)

Okay. We'll go to number 2 this time.

Buzz Aldrin (LMP)

Houston, looks like there's very little difference between the two.

Buzz Aldrin (LMP)

We've got number 2 reading 3050 and number 1 is reading—3000 and it drops down to 2990. So I'm not sure that it's really indicative that it didn't go. Over.

Ronald Evans (CAPCOM)

Roger. We copy and we agree.

Buzz Aldrin (LMP)

Okay. I assume we're—we're GO for lift off, and we'll proceed with the ascent feed.

Ronald Evans (CAPCOM)

Roger. That's correct, and we'll go ahead and watch tank 2. If it doesn't—tank 2 doesn't decrease, we'll tell you to close the ascent feeds and open the shutoffs. Over.

Buzz Aldrin (LMP)

Okay. Ascent feeds are open and shutoffs are closed.

Buzz Aldrin (LMP)

And I've got the cross feed on.