Spacelog Apollo 13

Copy it down.

Okay, Jim. I think I'm reading Jack, now. But what we want him to do is to give us a command reset. And then power down the CMC, power down the IMU, turn the IMU heater off, leave battery A on. Over.

That's just about 80—in fact, 82 hours out of the two primary cartridges. That's two guys. 44 is what LC8 got. That would be 88 hours. We got a secondary. You're right. We're listening.

Odyssey, Houston.

They can stand it—Go ahead?

Yes, Jack. Did you copy down about the CMC IMU?

Yes, Jack. I read it back twice to you. Command reset, which I've done. I'm about to power down the IMU, power down the CMC, turn the IMU heaters off, leave BAT A on.

That's affirm. Thank you.

Okay. I just got a MASTER ALARM and MAIN BUS A UNDERVOLT. And I'm starting to power down, now. —

We've lost—The only advantage to doing it early; if we can power back—the LM back down. The only advantage doing it early is you can do a big burn now and a midcourse and then power the LM down. Otherwise, we got to keep the LM powered up clear until we get around the Moon. Plus it would be inside on the burn. I just hope the G&N hangs up on—hangs in on this one—I'd sure hate to do that one manual.

Oh boy.

Odyssey, Houston. Couple circuit breakers for you. On panel 276, on our INSTRUMENTATION POWER CONTROL, open CB number 3 and number 4.

Okay, Houston. Panel 276, INSTRUMENTATION out and reset —

— a lot of light.

— CB-3 and CB-4 are open.

What?

That's affirmative, Odyssey. And also get your SCS electronics package and power off, and your FDAI POWER/GPI off, and your AUTO jet SELECT, all 16 off.

Okay. Well, wait a second. Let me—Let me get the CMC power down.

Roger, Jack.

I wonder how much that's going to bring this up, here.

Jack, while he's doing that, copy down what you just said again. I want to write it down.

Aquarius, we need to get your sublimator powered up, Activation page 20 and Activation page 21, step 3. Over.

Roger. Activation page 20 and Activation page 21, step 3, sublimator.

Roger.

That's Activation, page 20? Okay, Jack. Now I have to power down IMU. I have no control at all. I'm going to turn my 16 jets off, Say again the other things you wanted?

Okay, Jack. We'd like you to turn off your O₂ tank 2 heaters and fans. Correction—tank 1. Turn the fans and heaters off.

Okay. And, Jack, can we turn on the FDAI circuit breakers so we could have a ball to see if we go to gimbal lock or not?

Stand by.

Houston, he's going to give a 16 NOUN 20, Jack. And, okay, I've got O₂ heaters and fans off in tank 1.

And, Jack, let me know if you get close to gimbal lock, would you?

Jim, we don't want you to power down the ball in the LM. We wanted you to power down the ball in the CSM.

Jack, they haven't powered down —

Jack, we don't have the balls powered up in the LM.

I have the CMC and IMU in the command module is powered down. The heaters are out.

And the EVAP flow valve, that's open now, and I've undone my suit hoses here and opened up the suit flow valves; so, we got air flowing in the LM now.

Okay, Jack. Will you say again the SCS items you wanted me to power down?

Okay, Houston. Do you read Odyssey?

Hello, Houston. How do you read?

His gimbal lock and ours are different, Jim.

Apollo 13, Houston. Say again, please. You were cut out.

Okay, Jack. Do you want me to proceed by the SCS powerdown checklist? I did not copy the SCS items you wanted me to power down.

Okay, Odyssey. We want to go SCS ELECTRONICS POWER, OFF.

Okay. It's done.

FDAI POWER/GPI, OFF. AUTO jet SELECT, 16 —

That's done.

— OFF. And all your ROTATIONAL CONTROL POWER, OFF.

It's done. ROTATION CONTROL POWER, DIRECT, and AUTO …, OFF.

Okay, Jack. Tell me there. We need to know when we're getting close to gimbal lock in the LM. We have no balls right now.

Okay. We want you to power up your eight-ball. We want you to get your RCS heaters on. Pressurize the RCS and open up the MAIN SOVs. Over.

Okay.

Where would you like …?

…

Oh.

We don't want to lose COMM with him.

I'm watching it.

Aquarius, Houston. Stand by on opening your circuit breakers for displays. We're going to let you know what they are, and I have some gyro torquing angles for you.

Okay. What page is that there gyro torquing?

Okay. What page is the, do we write the gyro torquing angles on there, Jack?

Stand by.

Okay. We're there now, Jim. Jim's got it. Go ahead with the gyro torquing angles.

Okay. We'd like you to proceed with the fine aline and your gyro torquing angles are X plus 003.30, Y plus 024.80, Z minus 015.10. Over.

Okay. I read your gyro torquing angles as plus 003.30, Y is plus 023, I only have four numbers for Y; you'll have to give that one to me again, and Z is minus 015.10. Read Y again, please.

Okay, Jim. X and Z are correct and Y is plus 024.80.

Okay. We read Y as plus 024.80. We'll proceed on Activation 40 to fine aline the platform.

Aquarius, Houston. Can you see any stars out the LM window?

We'll have to wipe them off, Jack. They're coated with water right now.

Can I get a towel?

Yes.

Roger. As soon as you get a chance to—on your position—to take a look, we'd like to know if you can see stars for alinement purposes.

Okay. Jim's going to be in trouble in our present attitude out his side. The Sun's there.

Wait 1.

What have you got? How much you got left in battery A? Okay. I wish I knew what the hell they were thinking right now … —

They're talking about powering down and doing a P51 here?

No. They were just thinking about P52 —

Aquarius, Houston. Negative on the P51. We want to stay just like we are, but we'd like to be able to correlate what you're doing with some simulator work we're going to crank up. And so if you can give us information as to what stars you can see out the window, we can make that correlation.

Would you say one more time? Give me the top two. The top two.

Jim, what we want you to do is go with your current fine aline and disregard the P51. What we're attempting to do is to crank up some LMS simulations to correlate what we can get out your window with what we can get out the LMS window to see if that will help us any. So when you can see some stars, if you can, you think you can recognize them and recognize constellations, please let us know.

Okay. We'll check. Stand by.

Okay. Watch the —

I'm just glad …

Okay, stand by.

Okay. Here, unplug this.

Aquarius, Houston. We notice that the O₂ pressure in the ASCENT TANK O₂ is a little high, so we want to use some of it. So close DESCENT O₂ and open ASCENT O₂, tank 2. Over.

Okay, Jack. Switch now on ASCENT number 2 O₂ tank, DESCENT O₂ is closed.

Roger, Fred.

… that?

Okay, Houston; Aquarius. How do you read?

Reading you 5 square, Jim. Go ahead.

Okay. I'm looking out of Fred's window. I see a lot of particles out there, but a lot of that stuff is still drifting away from us, so a lot of it is flashing in the local vicinity, and I don't recognize any constellations right now, in this particular attitude.

Okay, Jim. If that status changes, please let us know.

Roger. We're continuing to drift. Okay, get your TTCAs to roll.

TTCA …

And, Aquarius; Houston. I've got some circuit breakers you can open to power down displays. In addition, I have a P30 maneuver pad. Over.

Roger. Stand by, Houston. Get the CS—get the pad book.

Get the LM data—get the LM book.

And, say—We're getting the pad book now, Jack—and say the boost on powered up?