Ken Mattingly

That's negative, Jack. We haven't powered up any of the downlink at this time. You'll be doing this and the command module RCS pressurization both by yourself.

Ken Mattingly

Okay. Now, the next event is going to be the separation of the service module, and these are some LM steps, but so that you will know what is going on, I'll read them to you. The LM will do a LM plus-X of one-half foot per second. Then you'll be hitting the CM SM SEP on and up, on their command. As soon as we are free of the service module, the LM will do another LM minus-X for 0.5 feet per second. This is called the push-pull maneuver. I think it was described this afternoon.

Jack Swigert (CMP)

Yes, Ken. It was, I heard about it.

Ken Mattingly

Okay. I just wanted you to know that's the sequence you're in. Okay. At the completion of that, we go back to panel 8, and it's SEQUENTIAL, PYRO ARM, both of them, to SAFE.

Jack Swigert (CMP)

Okay. Panel 8: SEQ PYRO ARM, two, to SAFE.

Ken Mattingly

Okay. And following this, we take SEQUENTIAL, LOGIC, two, to OFF.

Jack Swigert (CMP)

Okay. LOGIC, two, to OFF.

Ken Mattingly

I'm sorry, Jack. I'll have to ask you to repeat that.

Jack Swigert (CMP)

Okay. Panel 8: SEQ LOGIC, two, to OFF. Are they ON now, Ken? I don't remember turning them—I guess that's part of one of the other sequences, huh? That we turned them ON?

Ken Mattingly

That's affirm. The reason we're turning the logic off, Jack, is a power savings. So we'll be turning them off, and I'll be getting them back on when we go to get off of the LM; and then turn them back off, then we'll be turning them on prior to entry. Just so you know what's coming.

Ken Mattingly

Okay. Then following this, the LM will pitch up to acquire the Moon—Excuse me, they're going to pitch up and acquire the service module and photograph, and they'll be using the ACA for rotations from now on. And you may see the LM out of window number 5 at the same time they pitch up to acquire it.

Jack Swigert (CMP)

Okay. The LM pitches up, acquires the service module and photographs it, and I should expect to find—might possibly see the service module out of window 5.

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Ken Mattingly

That's affirmative. Okay, now we're down to EI minus 3 hours, or the next time-event, and the LM starts a maneuver to what we call the Moon-view attitude. This maneuver is designed to place the command module optics pointing with zero zero at the Moon, and it will be flown to on the LM ball angle.

Jack Swigert (CMP)

Okay, the LM maneuvers to the Moon-viewing attitude which would place the Moon in the center of the command module optics with them at zero zero.

Ken Mattingly

That's affirmative. Okay, now we're going to panel 5, and it's circuit breaker G&N, COMPUTER, MAIN B, closed.

Jack Swigert (CMP)

Okay. Panel 5: CB G&N, COMPUTER, MAIN B, closed.

Ken Mattingly

That's affirmative. Now you're going to come up with a 37 ENTER 06 ENTER most likely on the computer. And what we want to do is to put the computer to standby; if you come up with a 37 06, you'll have to do an ENTER in order to get the code 62. If it's got 62 on it, you can do a PROCEED until the DSKY blanks. You might remember that the AC is still off at this time so you won't be getting the STANDBY status light, and your cue that the computer is indeed in standby is when the DSKY goes blank.

Jack Swigert (CMP)

Okay. You're saying that I will probably get a PROGRAM 06 with a VERB 37 ENTER flashing.

Ken Mattingly

I expect that you —

Ken Mattingly

I expect you are —

Ken Mattingly

Yes. We think that you're going to come up with a 37 06 already in the DSKY. If you do, do an ENTER and that should take you to the code 00062, which is the request for standby. And when you get that, hit PROCEED until the DSKY blanks. If you come up with something else, that's where we want to end up anyhow. With either, when you get the code 62 when it comes up, just do a PROCEED on it.

Jack Swigert (CMP)

Okay. Is there anything else I could get?

Ken Mattingly

I don't believe so, Jack. That's one that when you get to that step, if you do get something else, we will be standing by to see that you see. The whole scheme is to go to standby.

Jack Swigert (CMP)

Will you be getting it on downlink?

Ken Mattingly

No, sir. We don't have that powered up yet.

Jack Swigert (CMP)

Okay. I'll yell to Jim, and Jim will give you a call.

Ken Mattingly

Okay. The basic thing, Jack, is just to get the computer in standby to save power.

Ken Mattingly

And we need another battery B readout.

Jack Swigert (CMP)

Okay. He is on his way. Go ahead.

Ken Mattingly

Okay. Now, we're at EI minus 2 plus 30; we're going to panel 5: circuit breaker ESSENTIAL INSTRUMENTATION, MAIN A, closed.

Jack Swigert (CMP)

Okay, CB ESSENTIAL INSTRUMENTATION, MAIN A, closed.

Ken Mattingly

That's correct. Now circuit breaker G&N, IMU HEATER, MAIN A, closed.

Jack Swigert (CMP)

CB G&N, IMU HEATER, MAIN A, closed.

Ken Mattingly

That's correct. CB LM POWER-1 and -2, open.

Jack Swigert (CMP)

CB LM POWER-1 and -2, open.

Ken Mattingly

That's correct. CB G&N, COMPUTER, MAIN A, closed.

Jack Swigert (CMP)

CB G&N, COMPUTER, MAIN A, closed.

Ken Mattingly

Okay, Jack. And that's correct. I got it out of sequence. Would you put that COMPUTER, MAIN A, ahead of LM POWER?

Jack Swigert (CMP)

Okay, Ken. That's CB G&N, COMPUTER, MAIN A, closed, goes before CB LM POWER-1 and -2, open.

Ken Mattingly

That's correct. Jack, what we're doing is we've had the LM powering MAIN B, and we've had all these particular loads on it, and we're getting ready to secure LM power so we wanted to make sure that essential things like the computer, the platform, and all have dioded power supplies before we remove the LM power.

Jack Swigert (CMP)

Okay. Sounds good. Volts, 39.1; amps, 1.3.

Ken Mattingly

Okay. Thank you. All right, now panel 275: circuit breaker MAIN B, BATTERY BUS B, closed.

Jack Swigert (CMP)

Panel 275: CB MAIN B, BAT BUS B, closed.

Ken Mattingly

That's correct. Circuit breaker INVERTER POWER 1, 2, and 3, closed.

Jack Swigert (CMP)

CB INVERTER POWER 1, 2, and 3, closed.

Ken Mattingly

That's correct. On panel 5: circuit breaker BATTERY RELAY BUS, BATTERY A and B, closed.

Jack Swigert (CMP)

CB BAT RELAY BUS, BAT A and B, closed.

Ken Mattingly

That's correct. Circuit breaker INVERTER CONTROL 1, 2, and 3, closed.

Jack Swigert (CMP)

CB INVERTER CONTROL 1, 2, and 3, closed.

Ken Mattingly

That's correct. On panel 3: AC INVERTER 1, MAIN A.

Jack Swigert (CMP)

Okay. Panel 3: AC INVERTER 1 to MAIN A.

Ken Mattingly

That's correct. Now, AC INVERTER 1, AC BUS 1, ON.

Jack Swigert (CMP)

Okay. AC INVERTER 1 to AC BUS 1 to ON.

Ken Mattingly

That's correct. And we're going to also put AC INVERTER 1, AC BUS 2, ON.

Jack Swigert (CMP)

Okay. AC INVERTER 1 to AC BUS 2, ON.

Ken Mattingly

That's correct. Back to panel 5. Circuit breaker EPS SENSOR SIGNAL, AC 1 and 2, closed.

Jack Swigert (CMP)

Stand by, Ken. I'm going to switch OMNIs here. You got cut out.

Jack Swigert (CMP)

Okay. Could you repeat that, please?

Ken Mattingly

Okay. On panel 5: circuit breakers EPS SENSOR SIGNAL, AC 1 and 2, closed.

Jack Swigert (CMP)

Okay. CB EPS SENSOR SIGNAL, AC 1 and AC 2, closed.

Ken Mattingly

That's correct. Circuit breaker EPS SENSOR UNIT, AC 1 and 2, closed.

Jack Swigert (CMP)

Okay. CBS—CB EPS SENSOR UNIT, AC 1 and AC 2, closed.

Ken Mattingly

That's correct. And circuit breaker CAUTION/WARNING, MAIN A, closed.

Jack Swigert (CMP)

CB CAUTION/WARNING, MAIN A, closed.

Ken Mattingly

That's correct. On panel 3: AC INVERTER, AC BUS 1 and 2, RESET and back to the center.

Jack Swigert (CMP)

AC INVERTER, BUS 1 and 2, RESET then center.

Ken Mattingly

That's correct. On panel 225: circuit breaker FLIGHT BUS, MAIN A and MAIN B, closed.

Jack Swigert (CMP)

Okay, panel—Okay, CB, FLIGHT BUS, MAIN A and MAIN B, closed.

Ken Mattingly

That's correct. CB CTE, MAIN A and MAIN B, closed.

Jack Swigert (CMP)

CB CTE, MAIN A and MAIN B, closed.

Ken Mattingly

That's correct. On panel 4: TELCOM, GROUP 1, AC1.

Jack Swigert (CMP)

TELCOM, GROUP 1, to AC1.

Ken Mattingly

And TELCOM, GROUP 2, to AC2.

Jack Swigert (CMP)

TELCOM, GROUP 2, to AC2.

Ken Mattingly

That's correct. On panel 3: S-BAND NORMAL, TRANSPONDER, to PRIMARY.

Jack Swigert (CMP)

S-BAND NORMAL, TRANSPONDER, to PRIMARY.

Ken Mattingly

That's correct. We want to take POWER, SCE, to NORMAL.

Jack Swigert (CMP)

POWER, SCE, to NORMAL.

Ken Mattingly

All right, and POWER, PMP, to NORMAL.

Jack Swigert (CMP)

POWER, PMP, to NORMAL.

Ken Mattingly

That's correct, and UP TELEMETRY, COMMAND RESET to RESET and then NORMAL.

Jack Swigert (CMP)

UP TELEMETRY, COMMAND RESET to RESET, then NORMAL.

Ken Mattingly

Okay. On panel 2: UP TELEMETRY, CMC, to ACCEPT.

Jack Swigert (CMP)

UP TELEMETRY, CMC to ACCEPT.

Ken Mattingly

On panel 275: circuit breaker FLIGHT/POSTLANDING, MAIN A and MAIN B, closed.

Jack Swigert (CMP)

A panel 275: CB FLIGHT/POSTLANDING, MAIN A and MAIN B, close.

Ken Mattingly

That's correct. And configure for COMM on panels 6, 9, and 10.

Jack Swigert (CMP)

Okay, are you with me?

Ken Mattingly

All right. I assume you got that. Panel 5: circuit breaker IMU, MAIN A and MAIN B, closed.

Jack Swigert (CMP)

CB IMU, MAIN A and MAIN B, close.

Ken Mattingly

That's correct. Circuit breaker OPTICS, MAIN A and MAIN B, closed.

Jack Swigert (CMP)

Okay. CB OPTICS, MAIN A and MAIN B, close.

Ken Mattingly

That's correct. CB G&N, POWER, AC1 and AC2, closed.

Jack Swigert (CMP)

CB G&N, POWER, AC1 and AC2, close.

Ken Mattingly

That's correct, and the G&N POWER switch to AC2.

Jack Swigert (CMP)

Okay, G&N POWER switch to AC2.

Ken Mattingly

That's correct. Now we want to perform the CMC powerup per the CSM G&C checklist, G 2-2.

Jack Swigert (CMP)

Perform CMC powerup per the G&C checklist, page 2-2.

Ken Mattingly

That's correct. Perform the EMS check, step 32 of the entry book, page 1-4.

Jack Swigert (CMP)

Okay. Perform the EMS check per step 32 per the entry checklist, page 1-4.

Ken Mattingly

That's correct. Okay, now the ground is going to give you a P27 update, at EI minus 2 plus 15. That's a—that's a time that you need to be configured to accept up telemetry. And what they're going to give you on a P27 update will by a clock increment, a state vector; they'll give you a VERB 66; they'll give you two REFSMMATs, there'll be an actual and a preferred; and the entry target load. Now, if you'd like. to copy those, I can take it a little slower.

Jack Swigert (CMP)

No, I've got them. They are going to give me a clock DELTA, state vector, VERB 66, two REFSMMATs, and an entry target load.

Ken Mattingly

That's correct. Okay, and then we'll do —

Jack Swigert (CMP)

There isn't much else they could give me, is there, Ken?

Ken Mattingly

No, not very much. How about IMU powerup according to the G&C checklist, G/2-1.

Jack Swigert (CMP)

Okay. Perform IMU powerup per G&C checklist, page 2-1.

Ken Mattingly

That's correct. And while you are there, you can do the optics powerup on G/2-3.

Jack Swigert (CMP)

Perform the optics powerup per page 2-3.

Ken Mattingly

That's correct; and on panel 229: circuit breaker TIMERS, MAIN A, closed.

Jack Swigert (CMP)

Okay. Panel 229: CB TIMER, MAIN A, closed.

Ken Mattingly

That's correct. And the next thing you will do will be to set the mission timer and what we've done is to only turn on the mission timer on the MDC. And you'll probably have to wait here until they get through with the uplink so you can have the computer.

Jack Swigert (CMP)

Okay. Set it from the CMC, huh?

Ken Mattingly

That's affirm. Okay. Now, we are getting ready to start the alinement sequence, and are you familiar with the general sequence of events we're going to use, Jack?

Jack Swigert (CMP)

How do you mean? We are going to make an alinement on the Moon and on the Sun; other than that—I didn't get any—I wasn't on the headset when the general information was passed up, so if there was any more than that, I didn't get it.

Ken Mattingly

Okay. Basically, that is correct. Let me just run through it hand-waving-type for a minute, and then I'll read you the steps. I think it will make more sense. The scheme is that the LM can fly to a set of ball angles that will point your optics at the Moon. Now, at any time, in any attitude that we happen to be at, if you can look in the telescope and recognize star patterns sufficient that you believe you can make an alinement all on your own, that's the place we'd like to break off and let you go ahead and take over with your own alinement. However, we are giving you a procedure which will give you things we know you can see in the telescope without worrying about any reflections or anything of that nature, and it's not intended that this procedure has to be followed past the point where you know you've got good definition of star patterns in your telescope. If you need to go on, we'll maneuver, take a look at the Moon, we'll take a mark there, and then we'll maneuver with the LM/FDAI angles again and take a look at the Sun, and get yourself another mark on the Sun and that will complete the alinement. Now, the alinement scheme is that we are going to give you a set of angles that you can coarse aline the ball through when the LM is pointing you at the Moon. Now, this set of angles will agree with the REFSMMAT that you have in as a nominal REFSMMAT in you CMC. You can coarse aline to that, set a drift flag and REFSMMAT flag, and you'll have a good platform and we'll be within a couple of degrees of a good alinement. And, if we have to, we could break off at this point and go ahead with an entry; however, in an attempt to get a good platform, we are going to have you then do a P52 option 1, and what you are going to find in the option 1 slots is the entry REFSMMAT. You'll come up with the NOUN 22 values, and we intend to go ahead and coarse aline the ball to the entry REFSMMAT attitude, and then we'll go ahead and take marks through a normal P52 sequence. So that's the general scheme that we are going to use. If you think you have a handle on that, I will go ahead and read you the steps.

Jack Swigert (CMP)

Okay. Well, let me ask a question. The LM maneuvers to a set of Moon-viewing angles. Okay, at this time, I am going to do a P52, is that right? With the planet option?

Ken Mattingly

The first thing we are going to do is to coarse aline the platform and get it inertial, based on the REFSMMAT that you have in the present slot inside the CMC. We'll then go—and do a P52, option 4—Correction, option 1.

Jack Swigert (CMP)

Okay—That's after the LM gets established at the attitude. Jim says I'm here at the Moon-viewing attitude, I do a VERB 41 NOUN 20 to the set of angles that you're going to give me in the pad.

Ken Mattingly

That's affirmative —

Jack Swigert (CMP)

And then I enter the P52.

Jack Swigert (CMP)

Okay. Then enter the P52 and that's an option 3, right?

Ken Mattingly

The P52 will be done as an option 1. The only reason you have the other REFSMMAT inside the computer is that in order to set the REFSMMAT flag, you need some relative orientation.

Jack Swigert (CMP)

Okay. I see. I do a P52 option 1, and when do I set the REFSMMAT flag and the drift flag?

Ken Mattingly

That will be before entering P52. I am going to give you this procedure in detail.

Jack Swigert (CMP)

Okay. All right. Let's go at it. Maybe it'll all fall out and I won't have any questions. Go ahead.

Ken Mattingly

Okay. I'm ready to start reading again. We start with a VERB 41 NOUN 20.

Jack Swigert (CMP)

Okay. When the LM is in the Moon-viewing attitude, I do a VERB 41 NOUN 20, ENTER.

Ken Mattingly

That's right. And you'll put in the attitudes that you'll get from one of the pads, and this will be for the coarse aline angles when the LM is at the Moon-viewing attitude. Then when they're all squared away, I tell you they have the right attitude; we then pick up again with a VERB 40 NOUN 20, ENTER.

Jack Swigert (CMP)

Okay. VERB 40 NOUN 20, ENTER when Moon is—the LM is satisfied that they're at the Moon-viewing attitude.

Ken Mattingly

That's correct. Now we're going to set the REFSMMAT and drift flags according to the G&C checklist, page G/7-1, steps 3 and 4.

Jack Swigert (CMP)

Okay. Set the REFSMMAT flag for G&C 7-1, steps 3 and 4.

Ken Mattingly

That's correct. Now VERB 37, ENTER; 52, ENTER; option 1.

Jack Swigert (CMP)

VERB 37, ENTER; 52, ENTER; option 1.

Ken Mattingly

That's correct. And we'll do the coarse aline.

Jack Swigert (CMP)

Okay. Perform the coarse aline function.

Ken Mattingly

Okay. Now when it gets back to the mark routines, we want to take a mark on the Moon.

Jack Swigert (CMP)

Okay. Mark on the Moon with the crosshairs in the center. Is that right?

Ken Mattingly

That's affirmative. Okay. When that's complete, the LM will maneuver to the Sun-viewing angle for attitude. And when they get there, you take a mark on the Sun using the Sun filter and the telescope; and, again, we're marking on the center.

Jack Swigert (CMP)

Okay. Now, let me ask you a question. Is the first mark on the Moon made with the—are all these made with the telescope and not the sextant?

Ken Mattingly

If—I'm not sure right offhand what the angular size of the Moon is, Jack. If you can get it in the sextant; that's the best thing to do, but you may have to go into the telescope in order to define the center. Either one's acceptable.

Jack Swigert (CMP)

Okay. If I can define the center through the sextant, do it that way. And if I can't, use the telescope.

Ken Mattingly

That's affirmed. We know you're going to use the telescope on the Sun.

Ken Mattingly

Okay. You ready to press on?

Ken Mattingly

Okay. Just reminded we owe somebody a BAT B voltage.

Jack Swigert (CMP)

Okay, another volts and amps coming up.

Ken Mattingly

All right. Thank you. And this left us in P52 with two marks, and we'll go ahead and torque the NOUN 93s.

Jack Swigert (CMP)

Okay. … torque the NOUN 93s, after the two marks.

Ken Mattingly

Okay. So that gives us a good platform. Now the LM will maneuver to the jettison attitude, and the only thing of significance here is that you want to watch to make sure that the path they choose to go to the jettison attitude avoids gimbal lock on your own platform.

Jack Swigert (CMP)

Okay. The LM maneuvers to the jettison attitude and I just monitor the maneuver and yell at Jim if he gets near a gimbal lock.

Ken Mattingly

That's affirmed. Okay, and then the LM will go to a MAX deadband attitude hold in the jettison attitude.

Jack Swigert (CMP)

Okay. The LM goes to MAX deadband attitude hold.

Ken Mattingly

Okay. Now we're ready to go back to work. The next thing we'll do is to continue to powerup procedures. Do you have any further questions on that alinement, Jack?

Jack Swigert (CMP)

No. No. I think—I think it's all self-explanatory now.

Ken Mattingly

Okay. The one thing that everybody would like for you to understand is we certainly don't insist on using the Moon and the Earth; if you find you have good stars, why use them. However, this alinement is more than adequate to give us a good guided entry.

Jack Swigert (CMP)

Okay. If I get a set of good stars, do I start right out to a basic P51 and a P52 option 1?

Ken Mattingly

That's affirmative.

Ken Mattingly

Okay. Now, we're ready to go to work on panel 275. And it starts with a circuit breaker MAIN A —

Jack Swigert (CMP)

Wait—wait just a minute. Wait just a minute. I owe you some volts and amps.

Jack Swigert (CMP)

Okay. Volts are 39.4, amps, 1.25.

Ken Mattingly

Okay. I thought maybe, your meter was stuck before.

Ken Mattingly

All right. You ready to go back to 275? Have a circuit breaker MAIN A, BAT BUS A, closed.

Jack Swigert (CMP)

CB MAIN A, BAT BUS A, closed.

Ken Mattingly

That's correct. And circuit breaker MAIN B, BAT C, closed.

Jack Swigert (CMP)

CB MAIN Baker, BAT Charlie, closed.

Ken Mattingly

Okay. That's correct. Now we're up to EI minus 1 plus 30. And at this time, we're going to proceed with the closeout and hatch installation.

Jack Swigert (CMP)

Okay. Closeout and hatch installation at EI minus 01:30.

Ken Mattingly

That's right, Jack, and we're going to close the LM hatch, and we'll make the dump valve in the LM hatch closed.

Jack Swigert (CMP)

Understand you're going to close the dump valve, now on the LM hatch, right?

Jack Swigert (CMP)

Okay. This is a change from what we had understood previously.

Jack Swigert (CMP)

I'm—Personally, I'm happy to see it, but that's good.

Ken Mattingly

Okay. That's one vote on your side. Okay; and we're going to go ahead and do the—use the decal to perform the hatch installation, and we'll start on the hatch integrity check.

Jack Swigert (CMP)

Okay. Per the decal, perform the hatch installation and start on the hatch integrity check.

Jack Swigert (CMP)

Okay, Ken. One thing I think that—I don't know whether anybody—the decal don't take into account the fact that we still have the umbilicals connected. At what point in time should they be removed?

Ken Mattingly

Okay, Jack. That doesn't matter. We're going to be separating the tunnel upstream of those umbilicals, and you can leave them right there.

Jack Swigert (CMP)

Okay. Does it make any difference if we disengage—the LM—We have pulled the circuit breakers LM POWER-1 and -2, so if we choose to disconnect these umbilicals, there's no harm, right?

Ken Mattingly

That's right. No sweat. John Aaron's just saying that they may be hot. He's checking on it, so how about holding a decision on that and let me come back to you?

Ken Mattingly

Okay. And let me tell you what we're going to do since we told you a different story this afternoon on this tunnel. We're actually going to vent the tunnel down so that we end up with about 1-1/2 to 2 psi absolute in the tunnel. And this will give us a DELTA-P of 3. So we'll do our hatch integrity check at the same time we're venting the tunnel down.

Ken Mattingly

Okay. Now let me give you some plumbing switches here. Let's take the SURGE TANK OXYGEN valve to ON.

Ken Mattingly

All right. Take the MAIN REGs, two, OPEN.

Jack Swigert (CMP)

MAIN REGs, two, to OPEN.

Ken Mattingly

Okay. And the WATER AND GLYCOL TANK PRESSURE, the PRESSURE valve and the RELIEF valve to BOTH.

Jack Swigert (CMP)

Okay, WATER AND GLYCOL TANKS PRESSURE and RELIEF valve to BOTH.

Ken Mattingly

That's correct. And EMERGENCY CABIN PRESSURE valve to BOTH.

Jack Swigert (CMP)

EMERGENCY CABIN PRESSURE to BOTH.

Ken Mattingly

That's correct; and the SUIT DEMAND REGs to BOTH.

Jack Swigert (CMP)

SUIT DEMAND REGs to BOTH.

Ken Mattingly

That's correct. Okay, now we're going to panel 5: circuit breaker ECS TRANSDUCERs, PRESSURE GROUP 1 and 2, MAIN A and MAIN B. That's four circuit breakers, closed.

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Spoken on April 17, 1970, 1:53 a.m. UTC (51 years, 7 months ago). Link to this transcript range is: Tweet

Jack Swigert (CMP)

ECS TRANSDUCERs, GROUP 1 and 2, MAIN A and MAIN B, four, to close.

Ken Mattingly

That's correct. Okay, now. Circuit breaker ECS TRANSDUCER, TEMPERATURE, MAIN A and MAIN B, that's two of them, closed.

Jack Swigert (CMP)

CB ECS TRANSDUCER, TEMPERATURE, MAIN A and MAIN B, closed.

Ken Mattingly

That's correct. On panel 4: PRIMARY ECS GLYCOL PUMPS, one, to AC 1.

Jack Swigert (CMP)

Primary ECS GLYCOL PUMPS to 1, AC1.

Ken Mattingly

That's correct. Okay, then we'll finish going back to the tunnel vent, and verify the LM/CM DELTA-P and make sure it's been holding pressure. And we'll come back again and rehash all of the hatch integrity check and tunnel vent procedures with you. The next thing I want to read off is the EI minus 1 plus 20. We'll go to panel 7: BMAG number 1 POWER to WARM UP.

Jack Swigert (CMP)

BMAG number 1 POWER to WARM UP.

Ken Mattingly

That's correct. Then at EI minus 1 plus 10, we'll perform SCS powerup per checklist, page G/2-4.

Jack Swigert (CMP)

Okay. Perform SCS powerup per G&C checklist, page 2-4.

Ken Mattingly

That's correct. Okay, on panel 4: SUIT COMPRESSOR NUMBER 2 to AC1.

Jack Swigert (CMP)

SUIT COMPRESSOR 2 to IC1.

Ken Mattingly

That's correct. SPACECRAFT CONTROL to SCS.

Jack Swigert (CMP)

SPACECRAFT CONTROL to SCS.

Ken Mattingly

Okay. And your MANUAL ATTITUDE switches, as you desire. We're coming up on jettison of the LM, so that's just like separation.

Ken Mattingly

Okay. And we'll do a GDC aline.

Jack Swigert (CMP)

Okay. Perform a GDC aline.

Ken Mattingly

Okay. On panel 8: ROTATION CONTROL POWER, DIRECT, 1 and 2, MAIN A/MAIN B.

Jack Swigert (CMP)

Okay. These are circuit breakers, ROTATION CONTROL POWER, DIRECT, 1 and 2, MAIN A and MAIN B, closed.

Ken Mattingly

Okay, Jack. I was thinking switch. Let me verify that's a circuit breaker, too. I think we have to get both of them.

Jack Swigert (CMP)

Okay, there's those four circuit breakers over there, Ken. When you said panel 8, that's what I thought you were talking about. I don't think the circuit breakers are out right now, but why don't we just put—verify the circuit breakers and put the switches to MAIN A/MAIN B.

Ken Mattingly

Okay, that's correct, Jack. Okay, at EI minus 1 hour, we're going to be doing the LM jettison; so just prior to that, we want to do a P47.

Jack Swigert (CMP)

Okay, say at about 1 minute prior to LM jettison, huh?

Ken Mattingly

Yes, just something that's comfortable for you.

Ken Mattingly

All right, after we've? done that, we want to get panel 8, SEQUENTIAL, PYRO ARM, two of them, ON.

Jack Swigert (CMP)

Okay. I get a GO from MSFN for this?

Ken Mattingly

Okay, John says we can watch it.

Ken Mattingly

All right; the next thing is CSM/LM FINAL SEP, two of them, ON, up.

Jack Swigert (CMP)

CSM/LM FINAL SEP, two, ON.

Ken Mattingly

That's correct. Now we're going back to panel 8, and it's SEQUENTIAL, PYRO ARM, two of them, to SAFE.

Jack Swigert (CMP)

Okay. SEQ PYRO ARM, two, to SAFE.

Ken Mattingly

That's correct, and go back to P00.

Ken Mattingly

All right. And now it's time to configure for single ring.

Jack Swigert (CMP)

Okay. Configure for single ring RCS.

Ken Mattingly

That's right, and since you're still an hour from EI, I guess it wouldn't hurt to use MINIMUM IMPULSE or something like that rather than the DAP, at least not until you get closer down. We'll have the DAP loads for you later.

Ken Mattingly

Okay. And as soon as you've gotten yourself all set up with a good control mode, you want to maneuver to the entry attitude.

Jack Swigert (CMP)

Maneuver to entry attitude per the pad.

Ken Mattingly

That's correct. And we show EI minus 55, which really means when you get to the entry attitude, we have a sextant star check for you. And that will be on the pad.

Jack Swigert (CMP)

Okay. Perform a sextant star check.

Ken Mattingly

Okay. And I want to remind you to park the optics at 90 degrees of shaft.

Jack Swigert (CMP)

Okay. Say again why, Ken. I didn't understand that.