LIVE: Atlas-V - GPS IIF-4 - May 15, 2013

• LIVE: Atlas-V - GPS IIF-4 - May 15, 2013 by beidou on 08 Oct, 2012 21:49
• This will be the first launch of the three GPS IIF launches in 2013.
• #1 by beidou on 09 Oct, 2012 06:14
• Quote from: Rocket Guy on 09 Oct, 2012 04:13

  GPS IIF-4 is Atlas V not Delta IV. It will be the first GPS launch on an Atlas.
  

  Thanks for pointing this out.
• #2 by beidou on 19 Nov, 2012 20:06
• From the Boeing website (http://www.boeing.com/defense-space/space/bss/launch/launch_sched.html), there is no GPS IIF-4, which is probably a satellite for internal testing only? Maybe the next GPS satellite launch is GPS IIF-5.
• #3 by Skyrocket on 19 Nov, 2012 23:14
• Quote from: beidou on 19 Nov, 2012 20:06

  From the Boeing website (http://www.boeing.com/defense-space/space/bss/launch/launch_sched.html), there is no GPS IIF-4, which is probably a satellite for internal testing only? Maybe the next GPS satellite launch is GPS IIF-5.
  

  
  It is erroneously listed there as GPS IIF SV-3
• #4 by HIPAR on 20 Nov, 2012 18:35
• GPS IIF-1 is SV-1, GPS IIF-2 is SV-2 and GPS IIF-3 is SV-4.  The satellites were not launched in the order of manufacture.
  
  So the next launch (GPS IIF-4) might very well feature SV-3 which was sidelined for additional work.
  
  ---  CHAS
• #5 by William Graham on 21 Nov, 2012 09:02
• Quote from: Rocket Guy on 09 Oct, 2012 04:13

  It will be the first GPS launch on an Atlas.
  

  No, just the first one in a very long time. Eleven Block I GPS satellites were launched by Atlas-E/F rockets between 1978 and 1985.
• #6 by Skyrocket on 28 Nov, 2012 12:36
• Does anyone know the serial number of the Atlas-V?
• #7 by WHAP on 29 Nov, 2012 15:37
• AV039
• #8 by beidou on 19 Mar, 2013 10:58
• currently scheduled on May 15 with launch window: 17:39-17:58 UTC
• #9 by Galactic Penguin SST on 19 Mar, 2013 11:04
• Quote from: beidou on 19 Mar, 2013 10:58

  currently scheduled on May 15 with launch window: 17:39-17:58 UTC
  

  
  Actually that's EDT.  (2139 - 2158Z)
  
  Do we know what satellite it will replace? There are quite a few GPS satellites working well beyond their lifetimes by now....
• #10 by beidou on 26 Apr, 2013 16:03
• any updates on this mission?
• #11 by Galactic Penguin SST on 26 Apr, 2013 19:26
• Quote from: beidou on 26 Apr, 2013 16:03

  any updates on this mission?
  

  
  Check out the mission booklet!

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  av_gpsiif4_mob.pdf
• #12 by jacqmans on 07 May, 2013 08:46

• ---

  
• #13 by Galactic Penguin SST on 12 May, 2013 10:57
• So from http://www.gpsworld.com/gps-block-iif-4-launch-set-may-15/, GPS IIF-4 is SVN66 and will head for slot C-2, replacing GPS IIA-25 (SVN33) launched on March 28, 1996. That one will remain as a reserve satellite.
• #14 by Jim on 12 May, 2013 12:28
• Quote from: jacqmans on 07 May, 2013 08:46

  
  

  
  That is the launch base processing patch, not the launch vehicle or spacecraft.
• #15 by Chris Bergin on 12 May, 2013 21:51
• ULA:
  
  
  
  Everything is progressing for the Air Force’s Global Positioning System (GPS) IIF-4 launch. The mission is set to liftoff on a ULA Atlas V on Wednesday, May 15 from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. The 18-minute launch window opens at 5:38 p.m. EDT. Today’s L-3 forecast shows an 80 percent chance of favorable weather conditions for launch. I have included the mission booklet for information regarding this mission.
   
  
  Weather Forecast
  
  Overall probability of violating weather constraints:  20%
  
  Primary concern(s):  Cumulus Clouds
  
   
  
  Overall probability of violating weather constraints for 24 hour delay:  20%
  
  Primary concern(s):  Cumulus Clouds
  
• #16 by russianhalo117 on 14 May, 2013 15:57
• ULA ‏@ulalaunch 12h
  Take 2: The webcast for Wednesday's #GPSIIF-4 launch will start at 5:18 p.m. EDT, launch window opens at 5:38 p.m. http://ow.ly/l00mg
   Retweeted 9 times
  8:31 PM - 13 May 13
• #17 by Jim on 14 May, 2013 15:58
• There is an Atlas at the pad
• #18 by Prober on 14 May, 2013 17:56
• Quote from: Jim on 14 May, 2013 15:58

  There is an Atlas at the pad
  

  
  Did you get to work on this payload Jim?
• #19 by Prober on 14 May, 2013 18:00
• This would make a good mission badge. 

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