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Ronald Evans (CAPCOM)
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Tranquility, Houston. I have your LM ascent and CSI data PAD's when you are ready to copy.
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Ronald Evans (CAPCOM)
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Roger. LM ascent PAD: TIG 124 22 00 00 00 NOUN 76 55349 00322, plus 0017; DEDA 47, plus 37104, minus 70470, plus 58604, plus 56936. Your LM weight 10837. Your T14 126, plus 20, plus 12. Over.
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Ronald Evans (CAPCOM)
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Roger. Your crossrange for NOUN 76—By the way, we may update this later, but now it is plus 0017. Over.
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Neil Armstrong (CDR)
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Roger. Readback follows. TIG 124 22 0000 55349 00322, plus 0017, plus 37104, minus 70470, plus 58604, plus 56936. LM weight 10837. T14, 126 20 12. Go.
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Ronald Evans (CAPCOM)
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Roger. CSI PAD. TIG of CSI 125 19 3470; TIG of TPI 126 57 0000; NOUN 81, 0532 plus 0000; FDAI NA; DEDA 373 03196; DEDA 275 04170; NOUN 86 plus 0532, plus 0000, plus 0012. Tranquility readback.
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Neil Armstrong (CDR)
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CSI Apollo PAD follows. TIG 125 19 3470; TIG of TPI 126 57 0000; NOUN 81, 0532, plus all zeroes, 373 03196 275 04170; NOUN 86 plus 0532, plus 0000, plus 0012. Go.
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Ronald Evans (CAPCOM)
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Tranquility Base, Houston. Your readback is correct. And, Tranquility, no need for any GYRO compensation. It's GO.
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Ronald Evans (CAPCOM)
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Columbia, Houston in the blind. Request high gain. Pitch minus 30, yaw plus 170. Over.
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Ronald Evans (CAPCOM)
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Roger, Columbia. We still need to finish your uplink there, and then I have your CSI and TPI times and also the lift off.
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Ronald Evans (CAPCOM)
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Roger. LM ascent lift off time: 124 22 0000. Your CSI TIG, say again CSI TIG: 125 19 3470. Your TIG of TPI: 126 57 0000. And the LM's NOUN 81 values for CSI: 0532—that's 53.2 for DELTA VX, DELTA VY all zeros. Columbia, Houston. Over.
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Michael Collins (CMP)
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Roger. I readback lift off TIG 124 22 even, CSI 125 19 3470, TPI 126 57 even, the LM's NOUN 81 for CSI 53.2 DELTA VX. Over.
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Ronald Evans (CAPCOM)
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Columbia, Houston. The computer is yours, and you can do your VERB 45 ENTER now.
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Ronald Evans (CAPCOM)
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Columbia, Houston. About 3 minutes to LOS, and I have your consumables update.
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Ronald Evans (CAPCOM)
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Roger. At 123 plus 00, RCS total minus 7 percent, Alfa minus 12 percent, Bravo plus 4.5, Charlie minus 7, Delta minus 6.5. Your hydrogen total minus 1.4 pounds, oxygen—oxygen plus 1.7. Over.
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Michael Collins (CMP)
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Whoever figured those hydrogens and oxygens out a couple of days ago must have known what he was doing.
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Jim Lovell
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Eagle and Columbia, this is the backup crew. Our congratulations for yesterday's performance, and our prayers are with you for the rendezvous. Over.
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Neil Armstrong (CDR)
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And, Houston, Tranquility Base is going to give you a few comments with regard to the geology question of last night. We are landed in a relatively smooth crater field of elongate secondary—circular secondary craters, most of which have rims irrespective of their—raised rims irrespective of their size. That's not universally true. There are—There are a few of the smaller craters around which do not have a discernible rim. The ground mass throughout the area is a very fine sand to a silt. I'd say the thing that would be most like it on Earth is powdered graphite. Immersed in this ground mass are a wide variety of rock shapes, sizes, textures, rounded and angular, many with varying consistencies. As I said, I've seen plain—what looked to be plain basalt and vesicular basalt. Others with no crystals, some with small white phenocrysts, maybe one to less than 5 percent. And the bould—we are in a boulder field where the boulders range generally up to 2 feet with a few larger than that. Now, some of the boulders are lying on top of the surface, some are partially exposed, and some are just barely exposed. And in our traverse around on the surface and particularly working with the scoop, we've run into boulders below the surface—it was probably buried under several inches of the ground mass.
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Neil Armstrong (CDR)
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I suspect this boulder field may have some of its origin with this large sharp edged rocky rim crater that we passed over at final descent. Now yesterday I said that was about the size of a football field, and I have to admit it was a little—little hard to measure coming in. But I thought that it might just fit in the Astrodome as we came by it. And the rocks in the vicinity of the—of this rocky rim crater are much larger than these in this area. Some are 10 feet or so and perhaps bigger, and they are very thickly populated out to about one crater diameter beyond the crater rim. Beyond that, there is some diminishing, and even out in this area the blocks seem to run out in rows with irregular patterns, and then there are paths between them where there are considerably less surface evidence of hard rocks. Over.
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Ronald Evans (CAPCOM)
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And, Tranquility Base, we're through with the ranging. You can take your S band function switch to OFF RESET.
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Ronald Evans (CAPCOM)
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Okay. At 123 plus 00, RCS Alfa 78—78 percent PQMD, Bravo is 76 percent PQMD, descent O2 is 62 percent—62 percent. Descent ampere hours are 590, 590 remaining, ascent ampere hours are 574, 574 remaining. Over.
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Ronald Evans (CAPCOM)
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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.
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Buzz Aldrin (LMP)
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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.
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Ronald Evans (CAPCOM)
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Tranquility, Houston. For your information, the circuitry looks real fine on that ascent engine arm circuit breaker.
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Buzz Aldrin (LMP)
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And it looks like in detent 6 I can pick up Venus right at the fringe, but I can't get anything else.
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Ronald Evans (CAPCOM)
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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.
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Buzz Aldrin (LMP)
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On the rear detent, the radar can be pointing plus X, and I'm—I'll be using right rear. That's okay.
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Ronald Evans (CAPCOM)
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Tranquility Base, Houston. I have one more late checklist change there on the rendezvous radar position for lift off. Over. From page Surface 57.
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Ronald Evans (CAPCOM)
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Okay. On Surface 57 there on your VERB 21 NOUN 73 trunnion, leave it 180; the shaft we'd like 335. Over.
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Ronald Evans (CAPCOM)
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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.
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Buzz Aldrin (LMP)
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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)
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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.
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Buzz Aldrin (LMP)
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Houston, Tranquility Base. Since we've still got plenty of time I think I'll go ahead and recycle on this 604.
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Ronald Evans (CAPCOM)
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Tranquility. Roger. That's okay with us, and we assume that the primary canister is still aboard. Is this correct?
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Buzz Aldrin (LMP)
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We have one primary canister on board and one secondary. The other primary is—out in front of the Z—plus—Z pad. Over.
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Ronald Evans (CAPCOM)
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Tranquility Base, Houston. Recommend 334, and that should just keep it out of the limit.
Spoken on July 21, 1969, 4:29 p.m. UTC (55 years, 3 months ago). Link to this transcript range is: Tweet
