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. 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.”

That's correct. And those are all of the flight changes—flight plan changes we have. And Ken is coming on now and later sometime when we get PTC squared away, and it's convenient, I suppose you should read all these things back to make sure that we're squared away on them.