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SCRUB: STS-115: Launch Day - September 8
by
Chris Bergin
on 07 Sep, 2006 23:02
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Shall we......
All updates into here:
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#1
by
mkirk
on 07 Sep, 2006 23:19
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Also since it was asked somewhere else, the countdown clock will pick up at the T-11 Hour mark @ 7:45 pm eastern time tonight. The hold at T-6 is now only 1 hour long and they will come out of that hold at 1:45 am eastern time tomorrow morning.
Mark Kirkman
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#2
by
psloss
on 07 Sep, 2006 23:21
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Couple of NASA TV notes for us armchair folks:
The Media Channel is going to run the live static feed (probably from the east camera site) at 9 pm Eastern tonight.
And NASA TV coverage begins at 5:30 am Eastern tomorrow morning.
Reference:
http://www.nasa.gov/multimedia/nasatv/MM_NTV_Breaking.html
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#3
by
Austin
on 08 Sep, 2006 00:02
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Countdown clock is running at 10:59:35
Next scheduled hold at 11:45pm EDT at 06:00:00. (2 hour duration)
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#4
by
psloss
on 08 Sep, 2006 00:12
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Austin - 7/9/2006 7:49 PM
Countdown clock is running at 10:59:35
Next scheduled hold at 11:45pm EDT at 06:00:00. (2 hour duration)
See Mark's post above -- they shortened the hold at T-6 hours to one hour. (12:45 am to 1:45 am Eastern)
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#5
by
mkirk
on 08 Sep, 2006 00:14
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Austin - 7/9/2006 6:49 PM
Countdown clock is running at 10:59:35
Next scheduled hold at 11:45pm EDT at 06:00:00. (2 hour duration)
Negative Ghostrider!!!
The hold starts at 12:45 Eastern and is now only 1 hour long.
Mark Kirkman
OOPS,
Sorry Philip you beet me to it.
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#6
by
Austin
on 08 Sep, 2006 00:40
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mkirk - 7/9/2006 5:01 PM
Austin - 7/9/2006 6:49 PM
Countdown clock is running at 10:59:35
Next scheduled hold at 11:45pm EDT at 06:00:00. (2 hour duration)
Negative Ghostrider!!!
The hold starts at 12:45 Eastern and is now only 1 hour long.
Mark Kirkman
OOPS,
Sorry Philip you beet me to it.
Affirmative, both!! (Mark/Phillip)
the "oops" was all mine!
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#7
by
DaveS
on 08 Sep, 2006 01:21
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psloss - 8/9/2006 1:08 AM
Couple of NASA TV notes for us armchair folks:
The Media Channel is going to run the live static feed (probably from the east camera site) at 9 pm Eastern tonight.
Seems like they have changed their minds. Watching the the media channel right now., and they're showing a replay of today's post-MMT meeting press conference.
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#8
by
psloss
on 08 Sep, 2006 02:03
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DaveS - 7/9/2006 9:08 PM
Seems like they have changed their minds. Watching the the media channel right now., and they're showing a replay of today's post-MMT meeting press conference.
Aye. And gone from the reference page, too. It was up at the time that tanking was supposed to start wee early Wednesday, so maybe in a few hours.
Still looks pretty impressive from that angle.
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#9
by
ianeck
on 08 Sep, 2006 02:16
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refresh my memory..what time is the MMT gathering for the go/no go to start tanking procedures?
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#10
by
DaveS
on 08 Sep, 2006 02:18
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At 12:35 am EDT.
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#11
by
Avron
on 08 Sep, 2006 02:32
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Just looking again at the tasks in this part of the count...
Activate the orbiter's fuel cells
Clear the blast danger area of all non-essential personnel
Switch Atlantis' purge air to gaseous nitrogen
When the fuel cells are activated, is it a short test or will they let them run for a while to get more data?
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#12
by
ianeck
on 08 Sep, 2006 02:34
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If I remember today's news conference correctly, I think they said the fuel cell would be run for an hour. Maybe I misunderstood?
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#13
by
ianeck
on 08 Sep, 2006 02:34
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ianeck - 7/9/2006 8:21 PM
If I remember today's news conference correctly, I think they said the fuel cell would be run for an hour. Maybe I misunderstood?
..sorry..fuel cells, plural. lol
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#14
by
joncz
on 08 Sep, 2006 02:54
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ianeck - 7/9/2006 10:21 PM
If I remember today's news conference correctly, I think they said the fuel cell would be run for an hour. Maybe I misunderstood?
I think the hour you're referring to there was the original design specification that required the fuel cell to run for an hour on two phases. The engineer (can't remember his name) was answering a reporter's question about the analysis that remained to be done. In short, the fuel cell was spec'd to run for at least an hour on two phases, but when they performed the initial acceptance testing 30 years ago, the motor temperature stabilized after about 26 minutes. As a result, they never ran the pump motor for the full hour and now they're having to extrapolate the effect of temperature on components of the motor and nearby in the accessory assembly.
The fuel cells are on from now until vehicle shutdown at the landing facility. They'll be running at low load while the Ground Support Equipment is plugged in, and transition to the internal cryo load at T-2:35.
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#15
by
ianeck
on 08 Sep, 2006 03:00
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thanks a bunch for the correction
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#16
by
Avron
on 08 Sep, 2006 03:07
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Any inputs as to how well the cells are doing.. any spikes.. issues/no-issues..?
Is cell one running now with 2 phases or three, when did they say they would pull the breaker on the 'A' phase?
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#17
by
Avron
on 08 Sep, 2006 04:22
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Austin - 7/9/2006 8:27 PM
mkirk - 7/9/2006 5:01 PM
Austin - 7/9/2006 6:49 PM
Countdown clock is running at 10:59:35
Next scheduled hold at 11:45pm EDT at 06:00:00. (2 hour duration)
Negative Ghostrider!!!
The hold starts at 12:45 Eastern and is now only 1 hour long.
Mark Kirkman
OOPS,
Sorry Philip you beet me to it.
Affirmative, both!! (Mark/Phillip)
the "oops" was all mine!
Ok... just to resync.. the clock is running and will run for another 39 mins.. but I note SFN... says its holding...
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#18
by
nathan.moeller
on 08 Sep, 2006 04:23
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What time will they start tanking if all looks well?
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#19
by
Avron
on 08 Sep, 2006 04:25
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nathan.moeller - 8/9/2006 12:10 AM
What time will they start tanking if all looks well?
Actual fill .. 10mins after comming out the hold at T-6
Edit:
from NASA HQ... for the last attempt:
Chilldown of propellant transfer lines (2:34 a.m.)
Begin loading the external tank with about 500,000 gallons of cryogenic propellants (about 2:44 a.m.)
T-6 was at 2:34am on the 6th...
