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#20
by
Avron
on 09 Sep, 2006 00:18
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dougb - 8/9/2006 8:03 PM
when does tanking start?
Normally 10 mins past T6 and counting
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#21
by
Avron
on 09 Sep, 2006 00:18
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psloss - 8/9/2006 7:47 PM
Avron - 8/9/2006 7:31 PM
First order of business post T-11 is to activate the fuel cells, so I hope we can get some positive feedback
That's definitely the case if that point hasn't occurred before (as was the case on Tuesday night), but I don't see that called out in the S0007 extended hold document after the scrub of the Wednesday attempt.
Can someone clarify whether the fuel cells have been turned off since they were activated on Tuesday night (obviously FC #1 was stop/started during the initial troubleshooting on Tuesday night) or have they been left on?
see.. S00E00.690 SHUTDOWN FUEL CELLS
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#22
by
psloss
on 09 Sep, 2006 00:19
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dougb - 8/9/2006 8:03 PM
when does tanking start?
Scheduled for T-6 hours and counting, but it's really whenever in that timeframe (for this attempt about 1:20 am EDT) that the team and vehicle are ready. I believe they've started "early" before and certainly they've started "late" -- chilldowns started about 60 minutes past the schedule for today's attempt. They have a three-hour hold at T-3 hours for catch up.
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#23
by
psloss
on 09 Sep, 2006 00:20
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Avron - 8/9/2006 8:05 PM
see.. S00E00.690 SHUTDOWN FUEL CELLS
Thanks...which document and revision?
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#24
by
Avron
on 09 Sep, 2006 00:26
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psloss - 8/9/2006 8:07 PM
Avron - 8/9/2006 8:05 PM
see.. S00E00.690 SHUTDOWN FUEL CELLS
Thanks...which document and revision?
Jim's link.. see L2.. now I must admit.. I find it not easy to read the text versions
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#25
by
Avron
on 09 Sep, 2006 00:34
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Here is a shot of F3L late in the day as the sun was going down
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#26
by
Austin
on 09 Sep, 2006 00:34
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Can someone verify the T - 06:00:00 scheduled hold duration? (1 or 2 hours)
Currently 4 hours remaining until the hold
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#27
by
Avron
on 09 Sep, 2006 00:38
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Austin - 8/9/2006 8:21 PM
Can someone verify the T - 06:00:00 scheduled hold duration? (1 or 2 hours)
Currently 4 hours remaining until the hold
Sorry cannot.. but note that the normal two items in the hold are:
no violations of launch commit criteria
clear pad
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#28
by
Austin
on 09 Sep, 2006 00:41
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Avron - 8/9/2006 5:25 PM
Austin - 8/9/2006 8:21 PM
Can someone verify the T - 06:00:00 scheduled hold duration? (1 or 2 hours)
Currently 4 hours remaining until the hold
Sorry cannot.. but note that the normal two items in the hold are:
no violations of launch commit criteria
clear pad
Ok thank you, sir.
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#29
by
psloss
on 09 Sep, 2006 00:42
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Avron - 8/9/2006 8:13 PM
psloss - 8/9/2006 8:07 PM
Avron - 8/9/2006 8:05 PM
see.. S00E00.690 SHUTDOWN FUEL CELLS
Thanks...which document and revision?
Jim's link.. see L2.. now I must admit.. I find it not easy to read the text versions
OK, I understand now; those are the text docs on NASA KSC (tougher format perhaps, but I like a little whitespace); in this case, specifically:
http://ftp.ksc.nasa.gov/shuttle/countdown/omi/s0007/S0007VL3.TXTit's in sequence 30...although there is this note:
FUEL CELL DEACTIVATION
----------------------
NOTE
PERFORM NEXT STEP IF
ESTIMATED HOLD PERIOD IS
GREATER THAN 96 HOURS OR
IF PRSD TANKS REQUIRE
TOP-OFF WITH FUEL CELLS
SHUTDOWN.
OMRS S00E00.690
Even though it's just trivia, I'm still curious given the fuel cell troubleshooting and the situation with fuel cell #1 whether there are any issues with restarting at least that one. (Mark's busy, but I had a question about the extended hold sequences...hopefully he'll be a little less busy after they launch tomorrow -- he said hopefully.)
Were you able to find the call out in Rev. F of the S0007 document for fuel cell activation? I see it in Rev. B on Page 9, but not in the same place (T-11 hours counting) in Rev. F.
Not a biggie, but still interesting...
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#30
by
psloss
on 09 Sep, 2006 00:48
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Austin - 8/9/2006 8:21 PM
Can someone verify the T - 06:00:00 scheduled hold duration? (1 or 2 hours)
Currently 4 hours remaining until the hold
I'm paraphrasing Mark, but I believe they shortened the hold at T-6 hours for today's (Friday's) attempt because (in part) some of the sequences performed Tuesday night into Wednesday morning between T-11 hours and T-6 hours did not need to be redone. That's probably true again tonight, which is why I'm guessing it's a one hour hold again.
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#31
by
Avron
on 09 Sep, 2006 01:10
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psloss - 8/9/2006 8:29 PM
Were you able to find the call out in Rev. F of the S0007 document for fuel cell activation? I see it in Rev. B on Page 9, but not in the same place (T-11 hours counting) in Rev. F.
Not a biggie, but still interesting...
Cannot find it as a stand alone..
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#32
by
DaveS
on 09 Sep, 2006 01:40
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psloss - 9/9/2006 2:35 AM
I'm paraphrasing Mark, but I believe they shortened the hold at T-6 hours for today's (Friday's) attempt because (in part) some of the sequences performed Tuesday night into Wednesday morning between T-11 hours and T-6 hours did not need to be redone. That's probably true again tonight, which is why I'm guessing it's a one hour hold again.
As far as I know, the MMT will meet at midnight EDT for the standard pre-tanking meeting with tanking shortly after 1 am EDT.
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#33
by
collectSPACE
on 09 Sep, 2006 01:47
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DaveS - 8/9/2006 8:27 PM
As far as I know, the MMT will meet at midnight EDT for the standard pre-tanking meeting with tanking shortly after 1 am EDT.
According to Rev. G of the STS-115 Countdown Highlights (a hand-out at the press site), MMT meeting will begin at 12:30am and fueling begins at 1:20am EDT with the resumption of the countdown at the T-6 hour mark.
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#34
by
shuttlefan
on 09 Sep, 2006 02:13
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collectspace - 8/9/2006 8:34 PM
DaveS - 8/9/2006 8:27 PM
As far as I know, the MMT will meet at midnight EDT for the standard pre-tanking meeting with tanking shortly after 1 am EDT.
According to Rev. G of the STS-115 Countdown Highlights (a hand-out at the press site), MMT meeting will begin at 12:30am and fueling begins at 1:20am EDT with the resumption of the countdown at the T-6 hour mark.
Has NASA released a x% probability of weather prohibiting tanking tonight?
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#35
by
Austin
on 09 Sep, 2006 02:16
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psloss - 8/9/2006 5:35 PM
Austin - 8/9/2006 8:21 PM
Can someone verify the T - 06:00:00 scheduled hold duration? (1 or 2 hours)
Currently 4 hours remaining until the hold
I'm paraphrasing Mark, but I believe they shortened the hold at T-6 hours for today's (Friday's) attempt because (in part) some of the sequences performed Tuesday night into Wednesday morning between T-11 hours and T-6 hours did not need to be redone. That's probably true again tonight, which is why I'm guessing it's a one hour hold again.
Thanks much
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#36
by
rdale
on 09 Sep, 2006 02:27
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shuttlefan - 8/9/2006 10:00 PM
Has NASA released a x% probability of weather prohibiting tanking tonight?
Pretty sure someone created a weather thread here?
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#37
by
Chris Bergin
on 09 Sep, 2006 02:29
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#38
by
strut
on 09 Sep, 2006 03:47
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Chris; Thanks for converting images to links on the forum earlier today, it loads up a lot quicker on my cellphone, monitoring the forum works there when I cannot get on online (that would be most all of the time I'm on KSC)
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#39
by
Avron
on 09 Sep, 2006 04:04
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Are we tracking any issues at this time? And do we know the state of the Failed ECO sensor, is it still in the wet state?
