Spacelog Apollo 13

Okay. Understand; and do you want some sort of a PTC mode, Jack?

Affirmative. We'll take whatever PTC mode you can set up, Jim.

Okay. And since you know our approximate attitude, how about just getting me something to find you on the DSKY for a southerly plus X-direction.

Roger. Stand by 1.

And one other question, Houston. When you say power down the DSKY or the LGC, do you mean going into 06 or multiple circuit breaker?

Stand by on powering down the DSKY, Jim. We'll give you the procedure for that. The procedure that we —

Okay.

— the procedure that we have is listed in several places. It's in the Contingency checklist under “Power down” on page 1, second paragraph.

And we'll give you that word when we want you to do that. That's LGC only, not to power down the IMU. But we'd like to have you hold off on that until we send you the word. Over.

And, Aquarius, while we're working on this, we have a proposed flight plan update for your working and resting cycles. And—You ready to copy?

Okay. Do you want me to write this in the flight plan, per se, Jack?

You can probably write it on a piece of scratch paper. This is pretty easy.

Okay. Go ahead. We got a lot of scratch paper.

Okay, Jack. As I read that, the LMP is to go to sleep at 63:00 for about 6 hours. During that period, the CDR and CMP should try to get a bite to eat. I'm to awake at 69 hours. CDR and CMP sleep at 70 hours, and they are to awake at 76 hours. And we should plan on doing our P51, P52 at 76 hours or 76:30. At 78:30, we're going to load a P30 and aline AGS to PGNS. Second maneuver is to take place at 79:25:26.5 for ignition time. Then we're all to eat at 81 to 82 hours.

Okay. With a minor modification, your P51, P52 will be about 77 hours, and that's the period of darkness. And the commander and the CMP ought to eat around 68 to 69 hours, and you should eat between 69 to 70 hours just after you get up. We have left an hour in there where everybody is awake together to talk things over. Go ahead.

Okay. I'll eat after I wake up between 69 and 70.

All right we have additional —

— and I've got the correction to P —

Go ahead, Fred.

Yes. We got the word the P51, P52 is going to be done around 77 hours, while we're in darkness.

That's affirmative. And we have a work-rest cycle laid out for further on, which we can relay to you later.

Okay.

Okay. And, Houston, you have advice on what attitude you want me to go to.

Okay. That'll be the next bit of information. I'll get that for you, Jim.

Okay.

And, Aquarius, just to get you thinking in that direction, we've run a fairly thorough analysis, and we've found out that it's going to be cheaper to keep the LGC and the DSKY up and turn the inverter and the ball off. It's going to save us 1 amp and also some water, so it looks like what we're going to do. And we'll have to monitor the middle gimbal angle. And we'll get the procedure on that, and it'll also be an easier control mode where we'll be able to use the TTCA through the—through the DAP.

Aquarius, Houston. We've got a procedure for you. Ready to copy?

Ready to copy.

Okay. It's pretty easy. We see you've already got VERB 16 NOUN 20 called up there and so we want you to, in maneuver and PGNS ATTITUDE HOLD, use the TTCA. We want you to, on the commander's ball, pitch to 267.5 and yaw to minus 4.5. And when you do this in VERB 16 NOUN 20, on the DSKY, you ought to read plus 00120, plus 26750, and plus 00450. Go ahead.

Okay. We're to drive the commander's ball to a pitch of 267.5, yaw minus 4.5. And we should have in 16 20 at that time, plus 00120, plus 26750, plus 00450.

Houston, Aquarius.

Go ahead, Aquarius.

Roger. You didn't mention roll on the ball. Do you want roll zero?

The roll ought to be plus 1.2, Jim.

Houston, Aquarius.

Okay. Go ahead, Jack.

Okay. DPS, pericynthion plus 2 into the MPL, 079, 27, 4013, plus 08144, minus 00443, minus 00226, N/A, plus 00205, 08455, 4 plus 20, 268, 261, plus 08155, minus 00443, minus 021, 2187, N/A. GDA should be okay as is, which hopefully is pitch 5.85, yaw 6.74. Two-jet ullage for 10 seconds, the DPS throttle 10 percent for 5 seconds, 40 percent for 21 seconds, 100 percent for the rest of the burn. And this should put us into the water at 142 plus 47.

Okay, Fred. I have a correction in NOUN 81. DELTA-V_Z is minus 02226. Read back.