Spacelog Apollo 11

Okay. Our NOUN 49 is reading: register 1, plus 08793; register 2, all balls.

Copy.

11, Houston. Guidance is looking at the NOUN 40—49 stuff. We'll be back with you momentarily. Over.

Okay, Charlie. Thank you. We'll just hold right here in the program.

Roger. We got the downlink now. Over.

Okay.

Hello, Apollo 11. Houston. We'd like you to reject the NOUN 49 stuff on the DSKY right now, Mike, and try it again. Over.

Okay. Will do.

Okay, Houston. Apollo 11. Here's another 49 for you. Are you getting it on the downlink?

Roger. We see it. Stand by.

Hello, Apollo 11. Houston. We recommend you accept the NOUN 49 display on the DSKY now. Over.

Okay. It looks like an awful big one. We noticed that you'd moved star number 2 to the tail end of the listing, and we should be marking first on star 40. Did that have anything to do with it?

Negative. We don't believe so, Apollo 11. We think that this is possibly due to some TLI dispersions, and it's probably satisfactory. So go ahead and accept this. It fits our criteria anyway that if you repeat the mark and you get an equivalent size to go ahead and accept it. And this is an equivalent size error. Over.

Okay. We'll do it.

And 11, Houston. Your state vector in the LM slots are—is good. Over.

Roger. Thank you.

Houston, Apollo 11. If you like this, we'll accept it as well.

Stand by.

Hello, Apollo 11. Houston. We recommend you accept the NOUN 49. Over.

Okay, Charlie. Thank you. We'll do that now.

Thank you.

And we're going to proceed on this one, too, Charlie.

Houston, Apollo 11. Another NOUN 49 for you.

Roger. We copy. Stand by.

Hello, Apollo 11. Houston. We'd like you to recycle and do this one over again. Over.

Houston, Apollo 11.

Go ahead, Apollo 11. Over.

Roger. Why don't you sing out when you think we've done enough battery charging on B.

Hello, Apollo 11. Houston. We'll be charging battery B up until the sleep period. We'll discontinue charging at that time. Also, at about 12 25 in the flight plan, we have battery A charge. That has been deleted. Over.

Roger. Understand. We'll charge until the sleep period on B and delete the battery A charge.

Affirmative.

And, Houston, Apollo 11. These AUTO optics maneuvers or P23's, AUTO maneuvers, don't seem to be going to the substellar point. Can you come up with the roll, pitch, and yaw angle for the substellar point on this star? It's our second star.

Roger. Stand by.

Hello, Apollo 11. Houston. Your angles in the flight plan we feel are still good, 198.6 130.7, 340.0. Just slightly off than those in the flight plan. Over.

Okay. We'll try that.

Charlie, state those three angles one more time. I'd like to confirm them before I maneuver.

Roger. Roll and pitch are slightly off than what's in the flight plan, 11. Roll is now 198.6, pitch is 1307. Over.

Roger. Roll 198.6, pitch 130.7, and yaw 34000.

Houston, Apollo 11. I think the problem here is that that attitude just is not too close to the substellar point. I'm having to maneuver quite a bit; and that's in progress now, so stand by for some marks.

Hello, Apollo 11. Houston. We've run the angles given in the flight plan for the P23 attitude through the machines down here, and they come up the same thing every time. We think everything's going correctly, Mike, and we're wondering if the nonsymmetrical horizon might by giving a problem. Over.

Yes, I'd say—It could be, Charlie. Stand by here. We'll get another mark for you.

Okay.

Houston, Apollo 11. NOUN 49 for you.

Roger. Copy.

Houston, Apollo 11. Star 40 has just disappeared now in the sextant. Could the trunnion angle 47—something be a little high?

Stand by.

Hello, Apollo 11. Houston. We'd like you to press on to star 44. Over.

Yes. Roger. All right. How many marks have you recorded on star 40?

Stand by, Mike.

Okay.

11, Houston. We copied two good marks. Over.

Houston, Apollo 11.

Go ahead. Over.

Roger. Forty-four is just not bright enough for this. There's a reddish glow filling the black area of the sextant, and the star is lost somewhere in there, and I cannot see it.

Roger. Stand by. We'll come up with another star. Over.

Yes. I'd appreciate that.

Hello, Apollo 11. Houston. We'd like you to go on to star 45. Over.

Okay.

And, Mike, we think these large DELTA-R's, NOUN 49, you're getting is really meaningful since it's been way before TLI since we had a state vector update; and we think it's normal. Over.

Okay. Could be, Charlie. Some of the early markings, I might not have had precisely the substellar point. I think as time goes by they've been coming more accurate but old Enif here is just flat invisible.

Roger.

And, Houston, Apollo 11. Understand that the same three gimbal angles you gave me should be valid for star 45 as well. Is that affirmative?

I'm believe that's right. Stand by one. Over.

Okay.

That is negative. Stand by one.

Okay. Because there's quite a difference between the gimbal angles you have and the gimbal angles the program wants, but with inaccurate state vector, I'm inclined not to believe the program.

Stand by.

Houston, Apollo 11. LMP is back on the line.

Roger. Copy.

Read you five-by.

Roger. Same, Buzz. And, 11, the angles for you are 1978 for roll, 1285 pitch, 3400 yaw.

Okay. Just as a matter of comparison, P23 for this star would like to go to 235.66, 154.31, and 31365. Over.

Roger. We copy, 11. We understand that the program can give you almost an infinite combination of angles in P23, and it's not too unreasonable. If you'll stand by, we'll look at these that we see on the DSKY. Over.

Okay. Then in the meantime I'll just go ahead and maneuver to yours. 197.8, 128.5, and 340.0.

Houston, Apollo 11.

Go ahead. Over.

Okay, Charlie. If the attitude you gave me on star number 45—The reticle is off, I'd say, a good 30 degrees in roll, and the star is not in sight. Over.

Roger. Stand by.

I think something's wrong with those attitudes.

Hello, Apollo 11. Houston. I wondered if you have AUTO optics selected. Over.

That's affirmative.

Roger. Looks like to us we need a PROCEED, Mike, to get the sextant pointed at the star. Over.

Okay. Stand by.

11, Houston. Those shaft and trunnion angles were exactly what we were computing on the ground. Over.

Okay. I'm going to trim up the attitude here and give it another try.

Okay. I have this star loud and clear now, Charlie, so I might as well do a bunch of marks on this one to get a good horizon count.

Roger. Stand by.

It still looks like I'm far from the substellar point. However, I'm off quite a hit in roll.

Roger. We'd like you to mark right where it is now, Mike, and we'd like two sets of marks on this. Over.

Okay. Fine. But the reticle is not parallel to the horizon. I'd have to move off quite a hit in order to get it parallel to that.