LIVE: STS-115 Flight Day 5 (EVA-2)

• #180 by nathan.moeller on 14 Sep, 2006 03:42
• Quote

  MKremer - 13/9/2006  10:26 PM
  
  

  Quote

  nathan.moeller - 13/9/2006  10:19 PM
  I'm still a little confused why they had the spacewalkers out when they deployed the arrays on STS-97.  Was it because the cells stuck and they had to wait until Tanner was out there to go fix it?  May be a dumb question but I'm curious.

  First time for array deployment. They didn't have much of a clue how they would actually deploy in space, as it turned out, plus doing it during an EVA would have someone available for contingincies in case one or both array deployments failed (as in the actual deployment hardware).
  

  
  Gotcha.  All the information from that flight and this one will definitely come in handy on STS-117 and STS-119!!  Funny how much you can learn from one flight and turn around and apply it to the following missions.
• #181 by MKremer on 14 Sep, 2006 03:44
• Quote

  nathan.moeller - 13/9/2006  10:25 PM
  
  So is the OBSS gonna be berthed for the remainder of the flight?

  
  Yes, until after undocking. They'll station-keep about 40 miles away and do another wing edge/nose cap OBSS sensor sweep to make sure there was no extra damage from unexpected impacts while docked, to verify again that the RCC surfaces are safe for re-entry.
  
• #182 by daveglo on 14 Sep, 2006 03:45
• I'll be $%^#!!!  View of P3/P4 AND Earth!  Thanks!
• #183 by nathan.moeller on 14 Sep, 2006 03:47
• Quote

  daveglo - 13/9/2006  10:32 PM
  
  I'll be $%^#!!!  View of P3/P4 AND Earth!  Thanks!

  
  I think you jinxed it dude. Still no word on deploy time.
• #184 by MKremer on 14 Sep, 2006 03:50
• Quote

  leclaire - 13/9/2006  10:28 PM
  
  Florida Today is reporting that the solar array problem is fixed.
  http://www.floridatoday.com/floridatoday/blogs/spaceteam/
  

  
  FTFA - "NASA flight commentator Nicole Cloutier said engineers traced the problem to software commanding issues that now have been resolved. Checkout of the so-called Solar Alpha Rotary Joint has resumed."
  
  So all the panic about a hardware/electronic failure was PR (and NASA-nerd) frantic handwringing. Figures.
  
  I did speculate it might be traced to a sensor or s/w problem. I'm just glad one of those turned out to be the case.
  
  Looking forward to getting the rest of the show on the road.
  
• #185 by Joffan on 14 Sep, 2006 03:54
• Alternative theory... the flight engineers are in fact waiting for orbital night so they can test it without all us lot looking over their shoulders... and here it comes...
• #186 by Norm Hartnett on 14 Sep, 2006 03:55
• Schedule says Forward Solar Array deploy one Bay about 3 1/2 hours ago and Aft Solar Array deploy one Bay about 1/2 hour ago. Neither of these has happened yet have they?
• #187 by nathan.moeller on 14 Sep, 2006 03:56
• Quote

  Norm Hartnett - 13/9/2006  10:42 PM
  
  Schedule says Forward Solar Array deploy one Bay about 3 1/2 hours ago and Aft Solar Array deploy one Bay about 1/2 hour ago. Neither of these has happened yet have they?

  
  There was an issue with a lock engagement for the SARJ and it kept them from completing the tests to deploy the arrays.  They traced it to a software issue and will be underway soon.
• #188 by MKremer on 14 Sep, 2006 04:03
• Good thing today doesn't involve an EVA.
  (crew deserves some rest and gives the ISS MCC folks some time to catch back up if they're able to)
  
  
• #189 by Norm Hartnett on 14 Sep, 2006 04:03
• Just to check my orentation Aft is top of screen and Forward is bottom of screen, nearest shuttle?
• #190 by MKremer on 14 Sep, 2006 04:09
• I posted something, but that was wrong.
  
  
  All I know is at the current time the stowed radiator is pointed toward Earth.
  
  
  
• #191 by Norm Hartnett on 14 Sep, 2006 04:21
• If the radiator is pointing down and shuttle is docked to the front of the station and this is the port truss then aft should be up and forward should be down in the camera view from the shuttle.
  
  I think.
• #192 by Joffan on 14 Sep, 2006 04:22
• Yes, it's tricky - I know that the P3/4 truss was tilted upward at about 45 degrees, but I can't quite work the rest of it out. If the camera panned up (frame-up)  by some amount less than 60 degrees it would be a straight zenith shot.
• #193 by MKremer on 14 Sep, 2006 04:35
• The radiator is pointing down - that's the deploy position (the SARJ 0° position), and what the end position was after the first 180° rotation yesterday.
• #194 by Joffan on 14 Sep, 2006 04:36
• That's station coordinates, but the station is not flying "flat", which makes the whole thing confusing to me.
  
  PAO announcement just now that the SARJ has continuing glitches.
  
  And wake up, I guess that's Day 6 on the go.
• #195 by Norm Hartnett on 14 Sep, 2006 04:37
• Wipeout? Not an auspicious song I should think.
• #196 by nathan.moeller on 14 Sep, 2006 04:39
• Well ladies and gents I'm calling it a night.  Many apologies to everyone for my uncalled for remarks earlier.  Hopefully they'll have these things working tomorrow morning!  Good luck all!
• #197 by MKremer on 14 Sep, 2006 04:43
• Put it this way - the P4/SARJ 0° position is 180° opposite from Z1/P6. That puts the radiator location pointing nadir from the station reference.
  
• #198 by leclaire on 14 Sep, 2006 05:09
• Now, NASA TV says they have engaged the motor and checkout is continuing.  Hopefully they have it this time.
  LL
  
• #199 by leclaire on 14 Sep, 2006 05:26
• SARJ movement!