Crew for this mission
Lee J. Archambault: Commander
Dominic A. (Tony) Antonelli: Pilot
Joseph M. Acaba: Mission Specialist
John L. Phillips: Mission Specialist
Steven R. Swanson: Mission Specialist
Richard R. Arnold: Mission Specialist
Koichi Wakata: ISS Flight Engineer Expedition 18 (launch)
Sandra Magnus: ISS Flight Engineer Expedition 18 (return)
Thorny From , joined Dec 1969, posts, RR: Reply 9, posted (4 years 9 months 3 weeks 4 days 19 hours ago) and read 7999 times:
Quoting TheSonntag (Reply 7): How long can they postpone until the schedule gets harmed?
If they don't launch by mid-March (when they have to stand down to let a Soyuz fly to the Station), there will be a domino effect on subsequent launches.
If they delay until April or later, that will be a serious schedule problem, and could force cancellation of one of the last Shuttle missions if the Shuttle program isn't extended beyond 2010.
Quoting Glidepath73 (Reply 8): Have heard, that debris from the odd satellite collision a week ago could endanger any shuttle launch in the future.
How serious is that problem really?
Increased threat of MMOD (micrometeoroid/orbital debris) impacts, which weren't low before the collision. Spacewalks are now a little more dangerous, and spacewalks are the one thing in spaceflight that are more dangerous than they look.
Nasa now seems to target March 12th as a planned date, but nothing has been decided yet. They wording implies that they want to prepare people for delays of the next missions, as well... Writing "we are not in a rush" (which is, of course, important) seems a bit unbelievable, with that in mind...
But go-fever would be the worst thing imaginable...
Nomadd22 From United States of America, joined Feb 2008, 1700 posts, RR: 0 Reply 14, posted (4 years 9 months 1 week 5 days 14 hours ago) and read 7246 times:
Nice to see em advance the date for a change.
I don't know if they've decided to let the Starboard SARJ run full out yet, but it will be nice to see the station looking balanced when S6 is on. I gather they'll probably just duct tape the extra race to the truss in case they need it someday, and probably not change out the damaged one if things keep going smoothly. I know they're also considering moving to the already installed spare race and keeping the used one for backup.
Thorny From , joined Dec 1969, posts, RR: Reply 16, posted (4 years 9 months 1 week 5 days 13 hours ago) and read 7233 times:
Quoting TheSonntag (Reply 15): I just hope this launch is not rushed. Since they are all professionals, I highly doubt that, but this seems to be kind of go-fever again, as there is getting pressure on the schedule...
Delaying the launch a month to study a problem is "go fever"?
Thorny From , joined Dec 1969, posts, RR: Reply 18, posted (4 years 9 months 1 week 5 days 13 hours ago) and read 7222 times:
Quoting TheSonntag (Reply 17): Of course not, but it seems that apart from that, they now try to continue very fast... I am no expert, though. My concern is just that they now run into schedule issues if they do not launch soon.
Why wait? Discovery herself has been ready to fly for over a month now while engineers ran tests on the little Flow Control Valves to make sure they didn't have cracks in them. Once the engineers say, "Okay, we're comfortable with this" and management said, "Okay, let's go fly..." it is essentially just a matter of starting the countdown.
NASA reportedly came very close to going ahead with the launch late last month, but decided to err on the side of caution and run another batch of tests on the FCVs. Those results came back this week.
Well, launch times advanced about 25 minutes each day, so a one-day delay would be 23 hours and 35 minutes.
But I'm thinking this will be at least a two-day delay, due to ET draining and pad-safing needed before they can fix whatever leaked (which seems to be either on the pad's LH2 vent arm or at its attach point on the Tank) assuming they can find it quickly and the fix is not too involved.
Weather forecast was 90% 'go' for Thursday and 80% 'go' for Friday, last I heard.
25 TheSonntag: Is this something which happened before, or could this be a serious issue?
26 Thorny: I've not heard of it, but with 124 previous launch campaigns, I wouldn't be surprised if it has happened before. My guess is it isn't a major problem
27 Thorny: Launch now No Earlier Than (NET) Sunday, March 15th.
28 TheSonntag: Will this threaten the schedule of the remaining missions, or is it still a manageable delay?
29 Thorny: If they launch Sunday or Monday, it is manageable. If they delay to April (and I think this likely) then we have a domino effect. If 119 slips to Apr
30 Mir: How long do they have to launch before they run up against the Soyuz schedule? -Mir
31 Thorny: March 17. But they lose mission days (and spacewalks) for every day after March 13.
32 Alessandro: ISS needs to be pushed by the spaceshuttle, does this mean that they have recalculate the orbit path if the spaceshuttle ride is postponed until next
33 Thorny: NASA is proceeding with plans for launch on Sunday, March 15. Liftoff is scheduled for 7:43pm EDT. Here is a link to a photo of the gaseous hydrogen v
34 Nomadd22: They suspect a slug of liquid H2 got into the line and blew a seal. I'd guess a little slower rate when they get near full to prevent it next time. ht
35 Alessandro: Swedish tabloids claim a 12% failure risk, I wonder if all 9 remaining missions with the spaceshuttle will be flown?
36 Thorny: That's the number NASA has said recently, although there is some question as to its validity and whether that number was politically motivated (to in
37 ZANL188: Easy for the tabloids to throw out a number and walk away but it's not that simple. What do they mean by "failure". Mission failure where crew and ve
38 ZANL188: We're are now past the point the point where the leak occured on the first attempt. No sign of reccurence observed. Leak appears to be fixed...
39 Nomadd22: Perhaps Thorny should warn his NASA contacts. I'm sure they'll take the tabloid's word and immediately cancel all remaining missions, go home and watc
40 ZANL188: Crew enroute to pad.... Ice team found a sleeping bat on the tank, on the far side from shuttle. No constraint to launch.