LIVE: STS-125 Flight Day 3 - Hubble Rendezvous, Grapple, Berth

• #160 by Lee Jay on 13 May, 2009 15:55
• Quote from: MKremer on 13 May, 2009 15:52

  Go to burn MC3
  

  
  A whopping 0.4fps.
• #161 by MKremer on 13 May, 2009 15:55
• 2 second burn.
  
  Good MC3 no trim req'd.
  
• #162 by SimDaDim on 13 May, 2009 15:56
• Have they turned off the Ku antenne? And why?
• #163 by Ronsmytheiii on 13 May, 2009 15:56

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• #164 by EirikV on 13 May, 2009 15:57
• 4000 feet r, r dot 6 fps
• #165 by wizard on 13 May, 2009 15:57
• Ku is in radar mode for rendezvous
• #166 by NavySpaceFan on 13 May, 2009 15:57
• Quote from: SimDaDim on 13 May, 2009 15:56

  Have they turned off the Ku antenne? And why?
  

  
  Not turned off, just in a different mode.  It's being used for rendezvous radar vice comms.
• #167 by MKremer on 13 May, 2009 15:57

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• #168 by kneecaps on 13 May, 2009 15:57
• Quote from: SimDaDim on 13 May, 2009 15:56

  Have they turned off the Ku antenne? And why?
  

  
  This is often asked so I'll explain and is often a point of confusion.
  
  The Ku antenna is also the rendezvous radar. It can't provide comms and work as the rendezvous radar at the same time. Currently it's tracking HST providing range, angles and rate information.
• #169 by SimDaDim on 13 May, 2009 15:58
• thanks for good answers
• #170 by daj24 on 13 May, 2009 15:59
• Quote from: braddock on 13 May, 2009 15:48

  God, I love how that BSA front panel has a couple 4-light binary number readouts.  That engineer must have learned on the Altair....
  

  
  Yep, Altair's were a great learning tool.
• #171 by Ronsmytheiii on 13 May, 2009 16:00
• Comming up on MC4
• #172 by Jorge on 13 May, 2009 16:00
• Quote from: MKremer on 13 May, 2009 15:51

  Ku in radar mode.
  
  

  
  Ku has been in radar mode for two hours now.
• #173 by AnalogMan on 13 May, 2009 16:01
• Quote from: daj24 on 13 May, 2009 15:59

  Quote from: braddock on 13 May, 2009 15:48

  God, I love how that BSA front panel has a couple 4-light binary number readouts.  That engineer must have learned on the Altair....
  

  
  Yep, Altair's were a great learning tool.
  

  
  Yeah, but LEDs don't compare to Nixies 
• #174 by Ronsmytheiii on 13 May, 2009 16:02
• 10 second MC4 burn in 1:20
• #175 by EirikV on 13 May, 2009 16:03
• R dot 3,5 fps
  R 2010 feet
• #176 by Lee Jay on 13 May, 2009 16:04
• Quote from: Ronsmytheiii on 13 May, 2009 16:02

  10 second MC4 burn in 1:20
  

  
  I think he said 2.2fps via RCS jets.
• #177 by Ronsmytheiii on 13 May, 2009 16:04
• good burn no trim
• #178 by Lee Jay on 13 May, 2009 16:05
• Can we get S-band in this mode?
• #179 by AnalogMan on 13 May, 2009 16:05
• OK, following the MC4 burn we are now into the terminal phase and flying the orbiter manually.

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