SCRUB: STS-122 Launch Day (Attempt 2) - Dec 9

• #20 by Ford Mustang on 08 Dec, 2007 20:23

• ---

  
• #21 by psloss on 08 Dec, 2007 20:24
• Quote

  DaveS - 8/12/2007  4:19 PM
  
  

  Quote

  Avron - 8/12/2007  10:16 PM
  
  Rule only applies to LH2 ECO and not LO2?? i.e. LO2 can do weired stuff as long as we have four good tests on LH2 ECO?? and does that exclude all ECO's used for fueling??

  If any ECO sensors act up, it's an immediate scrub.

  Right -- that would be new behavior, too.  (No recent history of LOX low-level sensors failing, if not long-term history.)
  
• #22 by psloss on 08 Dec, 2007 20:25
• The main shuttle page on the NASA.gov portal also reporting the plan now.
  http://www.nasa.gov/mission_pages/shuttle/main/
  
  

  Quote

  A post MMT news conference on NASA TV is set for approximately 4:30 p.m. EST. The participants will be Wayne Hale, Space Shuttle Program manager, LeRoy Cain, MMT chairman, Doug Lyons, STS-122 launch director, and U.S Air Force Captain Chris Lovett, 45th Weather Squadron.

  
  (The time is obsolete, but the participants aren't.)
  
• #23 by Norm Hartnett on 08 Dec, 2007 20:26
• Quote

  DaveS - 8/12/2007  12:55 PM
  
  

  Quote

  Chris Bergin - 8/12/2007  9:53 PM
  
  Presser poker time.
  
  I'll see your 4pm and raise you to 4:15pm NET.

  Now NET 4:30 pm EST.

  
  I'll raise PAO's 4:45 to 5:00.
  
  Rats, busted.
• #24 by psloss on 08 Dec, 2007 20:35
• They've dropped the NET; 4:45 pm Eastern for the briefing.
• #25 by Space Shrew on 08 Dec, 2007 20:36
• If we do go tomorrow, NASA TV will do tanking commentry - starting at 6:00am EST (11:00am GMT)
  according to NASA STS 122 schedule.
• #26 by makims on 08 Dec, 2007 20:41
• Now target for 4:45 EST without NET.
• #27 by ntschke on 08 Dec, 2007 20:41
• If tanking coverage starts at 6am, how quickly (realisticly) will we find out about issues with the sensors?
• #28 by psloss on 08 Dec, 2007 20:46
• Briefing started and Wayne Hale has the mic.
• #29 by psloss on 08 Dec, 2007 20:47
• "The decision has been made to go forward and we will proceed to tanking tomorrow."
• #30 by psloss on 08 Dec, 2007 20:50
• Quote

  ntschke - 8/12/2007  4:41 PM
  
  If tanking coverage starts at 6am, how quickly (realisticly) will we find out about issues with the sensors?

  Probably wouldn't be too long of a response time (although I'd predict you'll see something here before PAO says).
  
  If I understand correctly, the sensor circuit issues didn't occur immediately after the checks started on Thursday.  (It was about 15 minutes after fast fill on the LH2 side.)
  
  If the circuits are behaving normally, not sure how many minutes/hours before the different projects (ET, MPS, etc.) might indicate some confidence.
  
• #31 by Chris Bergin on 08 Dec, 2007 20:52
• Interesting on the change they will bring in on the SSMEs. I'll go after that.
• #32 by ntschke on 08 Dec, 2007 20:53

• Quote

  psloss - 8/12/2007 4:50 PM

  Quote

  ntschke - 8/12/2007 4:41 PM If tanking coverage starts at 6am, how quickly (realisticly) will we find out about issues with the sensors?

  Probably wouldn't be too long of a response time (although I'd predict you'll see something here before PAO says). If I understand correctly, the sensor circuit issues didn't occur immediately after the checks started on Thursday. (It was about 15 minutes after fast fill on the LH2 side.)

  Good point.  Of course I'll be checking here, but curious if this would be something that would be pretty much yes or no within the first couple hours tomorrow morning.  Crew prep wouldnt start until noon or so right?

• #33 by psloss on 08 Dec, 2007 20:57
• Doug Lyons on schedule...RSS retract at 11 pm local.  Tanking (already noted) for 5:55 am local.
• #34 by psloss on 08 Dec, 2007 20:59
• Forecast is only 20% probability of KSC weather prohibiting launch on Sunday.
• #35 by psloss on 08 Dec, 2007 21:02
• Wayne Hale was asked about the engine "changes"...talking about accurate control of the fuel mixture and improved engine flow meters.  Directed the main engine project to come back in 2 weeks to get improved flow meters into the flight sets.
  
• #36 by psloss on 08 Dec, 2007 21:07
• Heh, I'm just now noticing that Wayne is wearing a STS-96 Lead FD shirt.
  
• #37 by kimmern123 on 08 Dec, 2007 21:09
• A launch tomorrow would also be on the day one year after the STS-116 launch. Just another bit of trivia
• #38 by James Lowe1 on 08 Dec, 2007 21:18
• Reminder to keep this on updates specific to the launch countdown.
• #39 by psloss on 08 Dec, 2007 21:20
• If they don't get 4/4 LH2 ECO circuits tomorrow, they will scrub but continue collecting data (essentially it becomes a tanking test).
  
  After drain, Doug Lyons saying they would do troubleshooting out at the pad and exhaust those procedures before thinking about a rollback...