Michael Collins (CMP)

Okay. I read back plus 00.692, plus 11713, and minus 00144. And you have a grid square for me?

Bruce McCandless (CAPCOM)

Columbia. This is Houston. Grid coordinates: Kilo 0.9, 6.3, on LAM 2. Over.

Michael Collins (CMP)

Kilo 0.9 and 6.3. Thank you. One of these grid squares is about as much as you can scan on a single pass.

Bruce McCandless (CAPCOM)

And for your information, Columbia, you're approaching the VHF line of site COMM limit with Tranquility Base. LOS will be at 38 minutes plus 25 seconds. Over.

Bruce McCandless (CAPCOM)

Roger. And we've had to disable the one way MSFN relay owing to a ground site reconfiguration down here. Over.

Bruce McCandless (CAPCOM)

This is Houston. Go ahead. Over.

Michael Collins (CMP)

Roger. I can't see them.

Bruce McCandless (CAPCOM)

Roger. I guess that takes care of the news for today, Mike.

Bruce McCandless (CAPCOM)

You might be interested in knowing, Mike, that we have gotten reflections back from the laser reflector ray they deployed, and we may be able to get some information out of that a little later.

Michael Collins (CMP)

Roger. I need a very precise position, because I can only do a decent job of scanning maybe one of those grid squares at a time. The area that we've been sweeping covers 10's and 20's and 30's of them.

Bruce McCandless (CAPCOM)

Roger. We understand. This is intended to be your last P22. We don't want to use up too much fuel in this effort. Over.

Michael Collins (CMP)

Roger. How's the fuel coming?

Bruce McCandless (CAPCOM)

Roger. There's no problem fuel wise. It's just that there seems to be a limit to the number of P22's and the number of grid squares you can search over.

Michael Collins (CMP)

Roger. Well, I'll continue this maneuver then to roll 82, pitch 218, yaw zero, if that's okay with you, and do a P52 in that attitude. And that'll be a sleep …

Bruce McCandless (CAPCOM)

Roger. That's fine with us. And P52 in that attitude.

Bruce McCandless (CAPCOM)

Roger. A P52 and then the sleep attitude.

Buzz Aldrin (LMP)

Houston, Tranquility Base. Go ahead.

Bruce McCandless (CAPCOM)

Roger. When you all have a free moment, I have your T8 through T12 block data. Over.

Buzz Aldrin (LMP)

Houston, Tranquility Base. Ready to copy.

Bruce McCandless (CAPCOM)

Roger, Tranquility. T8, 114 30 57; T9, 116 29 10; T10, 118 27 23; T11, 120 25 36; T12, 122 23 49. Readback. Over.

Buzz Aldrin (LMP)

Roger. T8, 114 30 57; T9, 116 29 10; T10, 118 27 23; T11, 120 25 36; T12, 122 23 49. Over.

Bruce McCandless (CAPCOM)

Readback correct. Houston out.

Michael Collins (CMP)

Houston, Columbia on high gain.

Neil Armstrong (CDR)

Houston, Tranquility Base.

Bruce McCandless (CAPCOM)

Columbia. Columbia, this is Houston. Over.

Michael Collins (CMP)

Columbia in the high gain.

Bruce McCandless (CAPCOM)

Roger. Reading you loud and clear on the high gain, Columbia.

Michael Collins (CMP)

Roger. Going to P52 attitude. You want a crew status report?

Michael Collins (CMP)

I say again, I am maneuvering to the P52 attitude, and do you want a crew status report?

Bruce McCandless (CAPCOM)

Roger. And go ahead with your crew status report.

Michael Collins (CMP)

Roger. No medication. Radiation 100.16.

Neil Armstrong (CDR)

Houston, Tranquility Base.

Neil Armstrong (CDR)

Roger. The weight of the RCU was 12 ounces. That was by itself without the bag, and the weight of the water from the CDR's PLSS was 12 1/2 ounces. That's reading zero with the bag on.

Bruce McCandless (CAPCOM)

This is Houston. We copy. And, for your information, the new LM weight after jettison of equipment including lithium hydroxide canister is 10837. Over.

Neil Armstrong (CDR)

Okay. 10837.

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Spoken on July 21, 1969, 6:15 a.m. UTC (50 years, 1 month ago). Link to this transcript range is: Tweet

Michael Collins (CMP)

Houston, Columbia. Did you copy the P52?

Bruce McCandless (CAPCOM)

Columbia, this is Houston. Affirmative.