RE: LIVE: STS-117 Flight Day 13 - Pre-entry check-outs

• #200 by Pete at Edwards on 22 Jun, 2007 00:39
• Looks like we'll be having guests for dinner tomorrow
• #201 by mkirk on 22 Jun, 2007 00:39
• Quote

  Andy USA - 21/6/2007  7:22 PM
  
  What are these cryo tank heater calls they are getting about? Seems they are asked to switch some switches. What's this for and why can't it be done by Atlantis' computers or from the ground?

  
  The cryo tanks the are talking about are the cryogenic PRSD (power reactant storage and distribution) system tanks which supply hydrogen and oxygen to the fuel cells and oxygen to the ECLSS (environmental control and life support system).  There are heaters contained within each tank.  Each hydrogen tank has one probes with two elements and each oxygen tank has two probes with two elements.
  
  The heaters are cycled to maintain pressure in the tanks as they are depleted.
  
  Mark Kirkman
  
• #202 by James Lowe1 on 22 Jun, 2007 01:10
• Plan for tomorrow is a new thread, with this one staying open overnight.
  
  If anyone sees NASA TV produce the same screenshots for the landing ops as seen in the opening post on this thread, please post them. Thanks.
• #203 by psloss on 22 Jun, 2007 01:12
• Ground tracks for tomorrow's revs are out:
  http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts117/main/landing.html
  
• #204 by mkirk on 22 Jun, 2007 01:14
• Quote

  James Lowe1 - 21/6/2007  8:10 PM
  
  Plan for tomorrow is a new thread, with this one staying open overnight.
  
  If anyone sees NASA TV produce the same screenshots for the landing ops as seen in the opening post on this thread, please post them. Thanks.

  
  In the meantime the ground tracks are here;
  
  http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts117/main/landing.html
  
  Mark Kirkman
• #205 by psloss on 22 Jun, 2007 01:24
• If they go to Edwards on orbit 219, that's an interesting ground track right along the coast between South Orange County and San Diego and down into Baja...might have to give some friends a heads up about sonic booms...
• #206 by marsguy on 22 Jun, 2007 03:04
• Map showing the locations of some of the emergency landing sites around the world can be seen here:
  
  http://www.aerospaceweb.org/question/spacecraft/q0278.shtml
• #207 by Endeavour118 on 22 Jun, 2007 04:02
• based on the trajectory to edwards  what end of the runway will they be landing  4 the runway 4 end  or rwy 22 and for KSC it will be 15 right?
• #208 by MKremer on 22 Jun, 2007 04:56
• Landing direction depends on winds.
  
• #209 by Ford Mustang on 22 Jun, 2007 05:44
• Tomorrow's opps:

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• #210 by Ford Mustang on 22 Jun, 2007 05:46
• That is all they posted for the images..

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• #211 by Spiff on 22 Jun, 2007 08:21
• What are the rules about overflying populated areas? With my (admittedly limited) knowledge of US geography it seems that especially the opportunities on rev 219 are overflying rather populated areas.
  
  Also, I saw a question on one of the previous pages about when they decide to go for EDW on rev 219. The deorbit burn for EDW is earlier than the one for KSC. So, if there is a (small) chance to land at KSC, will they decide to not go for EDW in favour of KSC with the risk of EDW having weather restraints on the next rev? Or will they go for EDW, get the orbiter on the ground, with the risk of KSC having been a possibility in hindsight?
• #212 by Zachstar on 22 Jun, 2007 09:31
• Crew wakeup coming up!

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