Spacelog Apollo 13

Aquarius, we need FORWARD OMNI.

FORWARD OMNI.

Say again, Jack.

FORWARD OMNI.

I am. Okay, Houston. If that call was an OMNI switch, I'm in FORWARD now.

Okay, Fred-o, how do I get the mission timer up? I got the mission timer cranked in.

You got it on?

I got the mission timer circuit breaker in.

Okay. We're going to probably need NUMERICS LIGHTING. There you go. You got it.

Aquarius, Houston. I think we've got a better way of getting your mission time up.

Go ahead with it.

Okay. We can do a VERB 55, ENTER, and then put an R₁, minus 00088. In R₂, minus 00059; R₃ minus 03274.

Watch the crapping attitude.

We're okay.

God damn. I wish you'd get to something I know.

Well, as soon as we get over here, we'll stop it with the TTCA.

Okay.

And, Aquarius; Houston. We've got you both on VOX.

Like to go what?

You want us on VOX, Jack?

We have you on VOX. We're reading you loud and clear and the clock took good.

Okay. Looks like we're on the FDA route there, Jack.

Okay, Jack. How do you read me on NORMAL VOICE now?

Reading you 5 square, Fred.

Okay.

And, Aquarius, we're ready for a VERB 74 when you can give it to us.

You got it.

Okay. And one other thing we noticed. When you pressurized the RCS, we got an increase in pressure in the ascent tanks, and so we want to have you verify that the ascent feeds are closed. In order to do that, on panel 11, close the ASCENT FEED 1 and 2 circuit breakers on—and cycle the Parker valves, and then open the ASCENT FEED circuit breakers on panel 11.

Completed, Houston.

And, Jack, Aquarius. What kind of return time is this maneuver given?

That puts you back in the water at 133 hours.

133, hey.

Affirm.

And that's an Atlantic landing site.

Atlantic landing?

Affirmative. That's the pad that we've given you, but we may change our mind later on. We want you to have this info for now. And that's a minimum —

Okay.

— minimum time return.

Aquarius, Houston. We've got to change the REFSMMAT to the one to which you're alined. So we'd like to have P00 and DATA and we'll ship that up to you.

Roger.

Okay, you got it, Jack.

Roger. Coming up.

Aquarius, could you give us DATA please?

AFT OMNI, Fred.

You're down in the mud again, Jack. It appears that some other circuit is feeding through on there with you.

Roger. AFT OMNI.

Aquarius, AFT OMNI.

Okay. You're down in the mud again, Jack. Lots of background static.

AFT OMNI, Aquarius.

Hello, Houston; Aquarius. How do you read?

Hello, there, Aquarius. Loud and clear. How me, now?

Okay, we're reading you loud and clear, Jack. I hope it stays this time.

Okay. We'd like to brief you on what our plan is. We're, at this time, water critical in the LM. So we'd like to use as little as possible. To do this, we're going to plan to make a free-return maneuver of 16 feet per second at 61 hours, which is 37 minutes from now. Then we're going to power down the PGNS, and then we'll—at 79 hours, we'll go ahead and make another abort maneuver to kick what we got. But we'd like to get that PGNS powered down as soon as possible. That would be after the midcourse and—so how do you feel about making a 16-foot-per-second burn in 37 minutes?

Well, we'll give it a try, Jack, if that's all we've got. That's a 16-foot-per-second DPS burn in 37 minutes?

Roger. We're working up a pad for it, but we'd want to know what you think about doing it at that time.

Well, we'll do it. Could you give us a little bit more time?

Okay, Jim. We'd like to get a suggested time from you. We can figure out a free-return maneuver for any time you want to give us, so if you'll give us the time you'd like to shoot for, we'll figure out a pad.

Okay, that sounds good. I think if we have a little bit more time; we want to do it right. Stand by 1.

Let's shoot for an hour if we can, Jack. How's that.

Okay, Jim. How about 61 hours and 30 minutes? That's an hour and 5 from now.

Okay. We'll do it and we want to be sure we talk back and forth now to make sure we get this burn off right.

Affirm.

Okay, in the interim, Jack, I looked around again and I saw that we have a radar and a landing-radar heater breaker in. Can I pull those out?

Affirmative. Pull them both out.

And now we want to ask you a question about alinements, and so forth. We wanted to know if you can see any stars out of the AOT. We also wanted to know if you could use the service module to cast a shadow on the LM windows and then look out the windows to see stars for a PS1 COAS alinement.

Okay, in this attitude, Jack, that we're pitching around, I cannot use the AOT to see stars. We—we're just not able to see them at all. Now we may be able to maneuver off in yaw or—and/or roll and see stars. Right now, we haven't been able to. The AOT is useless. The command module structure is just radiating too much light into the—into the telescope.

Okay, and how about using the service module to cast a shadow on the commander's window? If you do that, can you see stars for a COAS alinement?

We could give that a try, Jack, although I don't know how successful it will be. We tried to do it—The light shines off our quads which makes it difficult to see stars. We do have the Earth and the Moon, if that can be of assistance.

Another problem—Right now, Jack, I'm looking out the right window and it's pretty dark out that window but there are about a thousand or so false stars out here from—left over from some of the debris. It's hard to discern what's real and not real.

Okay. That's good information and during the time that we see you're continuing to pitch, if you ever get in a position where you think the AOT might be of some use, we'd like you to periodically look out of it and see if you can see some stars that would enable us to get a P52.

Okay, will do. And also, let me ask you a question. In this configuration, docked, we have to use the TTCA to control pitch and roll. And, just how much can we use that without really changing our trajectory? We only have 60 miles to play with.

Roger, we'll put that to them.

Okay, Jack, are you ready to go to work with me on the 2-hour DPS activation and contingency book, page 1?

Roger, we're ready to go.

Okay. Item one, we can—one through five, we can scratch off, as done. Is that correct?

Stand by 1, Fred.

Okay, Fred, let's go ahead. Step 1, page 1. Everybody's listening.

Okay, I've looked around, and I've essentially done steps 1 through 5 with the exception of floodlights and utility lights and I think we'll just do without those.

Roger. Your choice.

Okay, on EPS activation, we're through step—we're through that—bottom of that page. That's all done.

We concur, page 2.

Okay, in essence, we've circumvented step 4, and we're not sitting with all 4 aps—descent BATs on high-voltage taps, so I'll scratch off step 4.

Roger, and in step 5, we want to leave INVERTER 1 circuit breaker OPEN.

Roger. In step 5, we'll leave INVERTER 1 CB OPEN.

Omit step 6.

Okay, for the time being, our mission timer is the computer so, mission timer activation scratch off.