Spacelog Apollo 13

Going down to 127:11, cross out “Verify DSE ON.” Beneath that a ways, cross out “127:14:20, start visual observations of Fra Mauro.”

All right.

Beneath that, cross out “Continue visual observations,” and cross out “Stop observations.” And beneath that, cross out “Photo target 56 on track f:8, 250, infinity, 5,” et cetera, to the end of that line. Cross out the “5.6” beneath that and the penned-in “E15.”

Okay.

Over in the margin, to the left of all that, make a comment: “Delete visual only.”

Where was that, Vance? I didn't get that last one.

Okay. That's still on page 30, on the left-hand side. In the time—in the margin at the left where you have times, just pen in beneath the “127:10” the following: “Delete visual only.” That's only a comment.

Okay. All right.

Okay. Going to page 34.

Okay.

About—on the left-hand side about almost halfway down beneath the “VERB 49, maneuver to TOPO target 54A,” make the comment “Target 54A is optional.”

All right. Got it.

And, next, page 35, on the right-hand side. Everything from “Spacecraft control, CMC, AUTO, verify” on down should be given the comment “Zodiacal light photos optional.”

All right.

And, well, where you have the block in the middle of the page that says—the small block that says “Zodiacal light photos,” just put “Optional” in that title, too.

Okay.

And, next, page 36, on the left-hand side.

Okay, go ahead.

Okay. First a comment. In the middle of the page is where the zodiacal light stuff ends, just under VERB 48. And then, if you'll go down to the bottom of the page, cross out the line “Photo target 12 on track,” et cetera, and cross out the “E5” that is below that line.

Okay, Vance, can I break in a minute?

Sure.

We have the CRYO PRESSURE light on now. The H₂ has hit its lower bound, so do you want us to go back to AUTO on the H₂ HEATER 1?

Stand by.

13, Houston.

All right, go ahead.

They request that you leave that switch in the AUTO position until you go to bed tonight. Stand by. I mean in the ON position. I'll repeat that again. In the OFF position until you go to bed tonight for reasons that you have a 3-percent imbalance, and they'd like to get that more even. So, just before turning in, we'll change the switch to AUTO.

Okay.

Okay, Vance, continue.

Okay —

Before we get away, would you ask FAO—something I didn't get briefed on—what the penned-in E5 and those letters and numbers mean?

Okay. Just 1 minute.

Okay, we'll have comments on that for you in just a second.

Okay.

Apollo 13, Houston.

Okay, Vance, I'm ready to continue. I'm ready. Go ahead.

Okay, new subject. Like to break in to say that request you re-initialize the PTT—PTC. For some reason, it's gone up to 18 degrees in pitch and yaw both. We don't quite understand this. All we can think of is—start it again. Over.

Okay. We'll go back.

Okay. We are at the—the end of the changes in the solo book, and I have two pages of changes in the flight plan. Those are pages 3-122 and 3-125. While you're looking that up, we'll put Ken on to answer your question.

Okay. I'll start back—let me start back re-initializing PTC here.

Okay.

Okay, Vance, I'm on 3-122 of the flight plan.

Okay. Okay, about—at time 156:50 on the right—well, on the right-hand half of the page, there's a line which states “Visual target 16, south, 180 plus 1:11, Gassendi, f:15.” Request you cross out that line.

Okay, we'll cross them out.

That's all on 3-122. Next change is 3-125.

Okay, I'm looking at 125.

Okay, starting from the top of the page, cross out the first five lines, which are “Set up camera for contamination and photography, Betelgeuse, CM4/EL/80,” et cetera, “MAG T,” et cetera, “Install window shades.”

I've got them crossed.

Okay, then jump down to just about 159:28. Cross out “Maneuver to contamination field photography attitude,” and all other lines below that through “Enable thrusters A3, C4, B3,” et cetera.

Okay, so we start with “Maneuver to contamination field photography,” and we cross out everything down to and including “Enable thrusters A3, C4, B3, and D4.”

Yes, sir. Understand you have a question.

Yes. I guess I didn't understand what the letter and the number was behind some of these photo targets.

Okay —

Does that refer to the pages?

Yes, sir. That's the map. Each fold is lettered in the lower—or upper right-hand corner if you work your way from east to west and the charts are labeled D, E, and F and the solo stuff will all be the D and E, and they change with the plane change 1. That's the time they change the two maps.

Okay. I got it. Thank you.

Yes, sir. You're doing good work, hey.

Well, I had a good prime crewman that taught me all I know.

Don't run out.

Hey, when FIDO gets a good hack on our trajectory, will you let us know?

How long you willing to wait?

He's looking at his calendar, if that means anything.

(Laughter) All right.

Okay. I'm back at the attitude here, and I'll wait for rates to damps and you let me know when we're stable again.

13, Houston.

Go ahead, Vance.

Roger. Just a reminder you have to disable Charlie and Delta here as you've done in the past. Over.

Okay. I was kind of holding off on this. We're dumping a little waste water now.

Okay, Vance. We've got quad C and B disabled.

Apollo 13, Houston.

Go ahead.

It may be awhile before your rates are settled down. We're still observing fairly high rates and deadbanding. Over.

Apollo 13, Houston.

Go ahead, Vance.

Okay. We've got about three items. First one is, all of your P23 batch—two marks have been evaluated and—Hey, congratulations. Looks real good; they're very happy with it. You're down to 4 arc-minutes on the substellar-point aspect of it, and that's the first thing to mention. The second is, unless you see a need, I don't see any need for you to read back the information we gave you on the solo book and so forth. Do you concur?

Roger. I think I got it. I remembered a lot of it, and so I think with what you gave me and what I remember, I'm pretty sure we got it right.

Okay, and the third item, I was just about to call that your rates were stabilized to start the PTC, but it looks like they're jiggling around again from a dump, so we'll stand by some more.

Okay.

No secrets around here.

Say again. Hey, that's right.

I said there's no secrets around here.

Yes. Big Brother is watching.

13 —

I can just see EECOM telling FIDO.

Yes. You really have to watch that pair, all right. By the way, we have a maneuver pad for you, a fly-by pad, whenever you're ready to copy.

Okay. Stand by.

Go ahead, Vance.

Our pad as follows: fly-by, SPS/G&N; 63385; plus 0.97, minus 0.23; 072:24:33.08; plus 0212.7, minus 0141.7, minus 0254.8; 148, 316, 050; NA, plus 0022.5; 0360.9, 0:53, 0356.3; 33, 352.7, 15.0; NA, NA, NA; minus 23.26, minus 165.00; 1147.7, 36172; 166:54:02; set stars 31, 23; roll is 288, pitch 205, yaw 034; no ullage; SPS docked; and LM weight, 33499.

Roger. That's correct. Want to verify under NOUN 81 that DELTA-V_X is plus 02127. You cut out right there.

Roger. DELTA-V_X is 02127.

Roger. And your rates are low. Looks like you can start the PTC.

Okay. In work.

Okay. And when the computer is available, request P00 and ACCEPT and we'll ship you your state vector.