Spacelog Apollo 11

Go ahead, Houston. Apollo 11 is ready to copy.

Apollo 11, this is Houston. Evasive maneuver SPS G&N: 63481, plus 095, minus 020; GETI 004 40 0100, plus 00051, plus all balls, plus 00190; roll is your option, pitch 213 357; NOUN 44 is NA; DELTA-VT is 00197 003 00152. The rest of the PAD is NA. No ullage. LM weight 33,290. Read back. Over.

Apollo 11, this is Houston. Standing by for your readback. Over.

11, Houston. Do you read? Over.

Apollo 11, this is Houston. Do you read? Over.

All of a sudden there, we heard a little click, and the signal strength began to start dropping off. Your transmissions were cut off very abruptly. How do you read now?

Roger. Loud and clear. We had a handover to Madrid about the time I was—I guess halfway through the PAD. If you could give me the last value you read, I'll pick up there. Over.

Okay. Start with DELTA-VZ. Over.

Roger. DELTA-VZ is plus 00190, roll your option, pitch 213 357, and NOUN 44 is NA. DELTA-VT 00197 003 00152. The rest of the PAD is NA, and no ullage. LM weight 33,290. Read back. Over.

Roger, Houston. Evasive maneuver SPS G&N: 63481, plus 095, minus 020 004 40 0100, plus 00051, plus all zeros, plus 00190, roll crew option, 213 357, NA, 00197 003 00152, no ullage, LM weight 33,290. Over.

Houston, Apollo 11.

Go ahead, 11.

We'd like to arm our logic switches.

Go ahead with the logic.

Okay. Mark logic 1 and 2 armed.

Houston, we're ready for LM ejection.

Roger. You're GO for LM ejection.

Thank you.

Houston, we are SEP. We have a CRYO PRESS light.

Roger. Copy. CRYO PRESS light.

Roger, 11. We recommend you turn the O₂ fans on manually and ensure that the O₂ heaters are in the AUTOMATIC position.

Roger. O₂ heaters are ON, and we're going to cycle the O₂ fans now.

Apollo 11, this ls Houston. Over.

Houston, Apollo 11.

Roger. In reference to your question on RCS usage: it looks like you are about 18, maybe 20 pounds below nominal at the present time. No problem at all. Over.

Right.

I wanted to be 18 or 20 pounds above nominal, babe.

Houston, Apollo 11. Could you confirm that pitch gimbal motor number 1 turned off? We just shut all four off, and we got a questionable indication on the ECS on pitch 1.

Roger. Stand by a second.

Houston, did you copy our residuals?

Apollo 11, this is Houston. Stand by, please.

Go ahead, Houston. Did you copy our residuals?

Roger. We got 00 and 0.2, it looks like.

We had 0.1 while ago. It's—just went to 0.2.

Okay.

That EMS DELTA-V counter is minus 4.0.

Minus 4.0. Roger.

And how about pitch gimbal 1? Can you confirm that OFF?

Can you stand by just a second on that? At the present time we cannot confirm it OFF. We saw a current drop indicating that several gimbal motors had gone off. We'll be back with you in just a second on it. Over.

Okay, If necessary, we can recycle it.

Apollo 11, this is Houston. If you'll go ahead and cycle pitch gimbal motor number 1 on and then off and give us a Mark, and we'll tell you what we see. Over.

Okay, fine. It's coming back on. Ready.

MARK.

Roger. We confirm that it is OFF.

Yes. We do likewise.

Houston, Apollo 11. We're starting our maneuver to observe the S-IVB slingshot.

Roger, 11. We've got an updated attitude for you on the slingshot observation.

Okay. Say the angles please.

Roger. Roll 002.5, pitch 289.3, yaw 357.5, and there's also an update—minor correction to your attitude for the P52. Over.

Roger. I have roll 002.5, pitch 289.3, and yaw 357.5. Over.

Roger. And for your P52 and optics calibration, it'll be roll 346.5, pitch 345.0, and yaw 007.8. Over.

Roger. 346.5, 345.0, and 007.8. Thank you.

Apollo 11, this is Houston. Over.

Roger. Go ahead, Houston. Apollo 11.

Roger. We're going to go ahead and enable the S-IVB for the slingshot maneuver. The LOX dump will start about 12 minutes from now. Over.

Okay, LOX dump about—I guess that'll make it about 01, huh?

Right. I'll try to give you a little closer update as we approach it.

Alright.

And, 11, for you information, the magnitude of midcourse correction number 1, if we burn, looks like about 17 feet per second. We're presently considering not burning it. This would make midcourse correction 2 tomorrow about 21.3. Over.

That sounds good to us.

Roger. You're looking good down here.

Well, we didn't have much time, Houston, to talk to you about our views out the window when we were preparing for LM ejection; but up to that time, we had the entire northern part of the lighted hemisphere visible including North America, North Atlantic, and Europe and Northern Africa. We could see that the weather was good all—just about everywhere. There was one cyclonic depression in Northern Canada, in the Athabaska—probably east of Athabaska area. Greenland was clear, and it appeared to be we were seeing just the icecap in Greenland. All North Atlantic was pretty good; and Europe and Northern Africa seemed to be clear. Most of the United States was clear. There was a low—looked like a front stretching from the center of the country up across north of the Great Lakes and into Newfoundland.

Roger. We copy.

I didn't know what I was looking at, but I sure did like it.

Okay. I guess the view must be pretty good from up there. We show you just roughly somewhere around 19,000 miles out now.

I didn't have much outside my window.

Houston, Apollo 11. We've completed our maneuver to, observe the slingshot attitude, but we don't see anything—no Earth and no S-IVB.

Roger. Stand by. In GET I have a LOX dump start time for you. It's supposed to start at 5 plus 03 plus 07, and stop at 5 plus 04 plus 55. Ullage burn starts at 5 plus 37 plus 47, stops at 5 plus 42 plus 27. Over.

11, Houston.

Go ahead, Houston.

Roger. We now recommend the following attitude: roll 307.0, pitch 354.0, yaw 019.5, and the LOX dump has already been enabled, so we can't hold it off any longer.

That's okay. Go ahead. We'll maneuver around to 307, 354, and 19 and a half. Thank you sir.

Roger.

11, Houston. It doesn't look to us like you'll be able to make it around to this observation attitude in 2 minutes. We recommend that you save the fuel. Over.

Okay, Houston. You got to us just a little late. Our maneuver's already begun, so it's going to cost us about the same amount of fuel to stop it, no matter where we stop it, and we may as well keep going.

Roger. Go ahead.

11, Houston. LOX dump initiated.

11, Houston. LOX dump has been terminated. Over.

Roger.

Roger. We still don't have …

Apollo 11, this is Houston. Over.

Go ahead.

Roger. If you'll give us ACCEPT and stay in P00, we'll set your trunnion bias to zero. And, I have a plan for balancing your oxygen CRYO's. Over.

You got it.

Roger.

Houston, Apollo 11. We've got the—what appears to be the S-IVB in sight—at—oh, I'd estimate a couple of miles away. It's at our number 5 window and the dump appears to be coming out of two radially opposite directions from the S-IVB.

Roger. They're continuing with the nonpropulsion vent from the liquid oxygen tank. It would be radially opposite, then. And boosters tell me it's the continuous vent system. They're also dumping a small amount of fuel at this time. We've got about 23-1/2 minutes or so until the APS burn. Over.

Roger.