Section 4: Earth Orbit and Systems Checkout

Young: Evaluation of Insertion Parameters; I forget what the numbers were, but they were good. Post-Insertion Systems Configuration Checks - IÂ’d say that was nominal.

Duke: I thought it went very smooth, smoother than in the simulator.

Young: ORDEAL. No problem to unstow. Optics Cover Jettison (Debris). Want to say something about that Ken?

Mattingly: Once again, I heard the sextant cover go off, but I did not hear the telescope cover go. Like everyone else that has looked through there, I looked and didnÂ’t see a thing in the telescope and I was concerned about what to do next. In fact, we talked about it. What was the best thing bo do? I didnÂ’t think the cover had gone. While we were playing around we came across a star pattern that was bright enough to see and it was an excellent telescope. There was no debris that you could see from it. COAS and horizon check. Right where it is supposed to be at 31.7 degrees or whatever. It was right on the line.

Young: Unstowage, did you have any problems with that?

Mattingly: No, except itÂ’s so much easier in zero 'g' than it is in one 'g'. All those things would come out for a change.

Young: Where itÂ’d take you a week in one g to flip over and get the COAS you can do it in milliseconds, with a pressure suit on in zero g.

Duke: Canaries had an antenna problem on the first time by and they dropped the uplink for awhile.

Young: They dropped the uplink and we missed getting a ...

Duke: Did we?

Mattingly: Yes sir.

Young: It was the Pyro arm one time that we missed because when they were coming up they dropped someone.

Duke: That was the second time by.

Mattingly: I guess the first place we checked the BMAG GDC drift was during this Earth orbit period.

Duke: Right.

Mattingly: They were running pretty high, I checked both BMAGs, I got BMAG package number 1, post-TLI and BMAG package number 2 pre-TLI and they were running like 6 degrees an hour. Just roughly, approximately, in all axes. And the reason thatÂ’s significant to me is that they changed during the mission.

Young: They were different they didnÂ’t maintain the same drift. If youÂ’re really serious about using that thing for backup, at the time you use it you ought to know what drift you can expect out of it. TLI Preparation, a piece of cake.

Duke: Yes, we had - they changed a few numbers on us. On the yaw and the ORDEAL, and we were - there was some concern on the APS module, but. itworked throughout.

Young: We had all the procedures ready to go if we did have to fly it in roll. I am sure glad we didnÂ’t. Subjective Reaction to Weightlessness. really neat. Beats work.

Duke: For the first rest period I had that fullness in the head that a lot of people have experienced. More of a pulsing in the temples, really than a fullness in the head.

Young: I tried to outguess it by standing on my head for five minutes a night a couple of weeks before launch. Standing on your head is a heck of a lot harder. ThatÂ’s an overkill, but this is nice.

Mattingly: I really think going out and flying those airplanes helped us.

Young: Oh, yes, I highly recommend that.

Mattingly: And. I flew every day except one. I donÂ’t know if that helped, but I bet it didnÂ’t hurt.

Young: Yes, rate of roll in particular, itÂ’s got to help. It tightens up your eardrums.

Mattingly: I think that was a good thing to do.

Young: You ought to approach it with the idea that youÂ’re going in there and make yourself as uncomfortable as you can stand. Do rate of roll until you canÂ’t stand it anymore.