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#300
by
DaveS
on 24 Aug, 2006 22:16
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All the SRB overpressure water bags have now been installed:
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#301
by
anik
on 25 Aug, 2006 09:25
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#302
by
Wisi
on 25 Aug, 2006 09:42
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What does PDRS mean? something robotics-related obviously... BTW do you have any abbreviation-explanation-thread here or do you know a site somewhere? I don't want to ask all the time...
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#303
by
anik
on 25 Aug, 2006 10:00
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Wisi - 25/8/2006 1:29 PM
What does PDRS mean? something robotics-related obviously...
PDRS = Payload Deployment and Retrieval System
Wisi - 25/8/2006 1:29 PM
BTW do you have any abbreviation-explanation-thread here or do you know a site somewhere? I don't want to ask all the time...
http://forum.nasaspaceflight.com/random-quotes/view-acronyms.asp
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#304
by
Chris Bergin
on 25 Aug, 2006 11:55
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This will run for today, then on Saturday we'll open the launch day thread (given we'll be heavily into the count).
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#305
by
DaveS
on 25 Aug, 2006 12:24
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#306
by
Avron
on 25 Aug, 2006 14:10
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Hold comming up... or are we holding already.. think this is the 4 hour hold that is now 8 hours
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#307
by
DaveS
on 25 Aug, 2006 14:22
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#308
by
Avron
on 25 Aug, 2006 14:39
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#309
by
Mark Nguyen
on 25 Aug, 2006 15:59
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Perhaps this isn't the best place to be asking this, but what's the point of a built-in hold? Launch-related ctivities are scheduled during all of these holds, according to NASA's Countdown 101 page. Why have holds at all?
Mark
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#310
by
MKremer
on 25 Aug, 2006 16:07
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There are some things that need to be done in a certain order, but some can't be done within a specific time period (the time to complete or check them can vary widely depending on conditions or hardware involved) so holds are scheduled to allow those to be done, plus any catchup work or extra diagnostics/tests/fixes needed before the count resumes.
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#311
by
Jim
on 25 Aug, 2006 16:15
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This was a way of standardizing the countdown. The holds can be extended or contracted depending on mission requirements. The basic tasks for the count always occur at the same T time and this does affect the way the countdown procedure is written. When missions had a Spacehab or a EDO pallet onboard, certain holds would be extended to allow loading of experiments in the Hab module or extra reactants added to the EDO pallet. Other proecedures are run concurrent to the countdown procedure. The controlling document wasn't the countdown procedure but rater the countdown schedule.
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#312
by
psloss
on 25 Aug, 2006 17:58
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Hopefully they got through most of the PRSD loading already...looks like the afternoon nasties have arrived...
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#313
by
Mark Dave
on 25 Aug, 2006 18:16
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How does Sunday look for launch?
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#314
by
Avron
on 25 Aug, 2006 18:19
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That weather does not look good.... Sunday 40% chance of nasties comming in...
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#315
by
Mark Dave
on 25 Aug, 2006 18:25
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Then what of the rest of the week? I hope something good.
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#316
by
psloss
on 25 Aug, 2006 18:26
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Avron - 25/8/2006 2:06 PM
That weather does not look good.... Sunday 40% chance of nasties comming in...
It's much better now:
(Seriously, it's only a factor for keeping up with the timeline...the weather pattern is supposed to change favorably by launch time.)
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#317
by
Austin
on 25 Aug, 2006 19:04
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Avron - 25/8/2006 11:06 AM
That weather does not look good.... Sunday 40% chance of nasties comming in...
The reports I'm looking at are still showing only 30% chance of precip at launch time. Again, if you've lived in Florida, you know that the weather can go from good to bad, and vice verca very quickly. It all comes down to what mood Mother Nature's in around the 4 o'clock hour eastern time Sunday.
We also look good for Monday and Tuesday's forecast. I really don't think that weather is going to be a show-stopper.
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#318
by
mkirk
on 25 Aug, 2006 19:04
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The O2 portion of the PRSD load is complete. H2 still needs to be done. There is plenty of hold time available at T-19 hours (10) to pick up once the weather here improves. Wx definately sucks right now!
Mark Kirkman
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#319
by
Jim
on 25 Aug, 2006 19:12
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mkirk - 25/8/2006 2:51 PM
The O2 portion of the PRSD load is complete. H2 still needs to be done. There is plenty of hold time available at T-19 hours (10) to pick up once the weather here improves. Wx definately sucks right now!
Mark Kirkman
Mark, where are you at, right now?
Similar documents are at L2 section already for a long time...
Similar documents are at L2 section already for a long time...