Quote from: russianhalo117 on 03/21/2017 01:01 amQuote from: ZachS09 on 03/20/2017 11:38 pmIn the Arianespace Launch Schedule, it says that SES-15 is launching atop the Soyuz-STA Fregat-M variant.Any sources confirming that?Arianespace mission 17was originally ordered as am ST-B but changed to an ST-A per http://forum.nasaspaceflight.com/index.php?topic=17286.550But, why?
Quote from: ZachS09 on 03/20/2017 11:38 pmIn the Arianespace Launch Schedule, it says that SES-15 is launching atop the Soyuz-STA Fregat-M variant.Any sources confirming that?Arianespace mission 17was originally ordered as am ST-B but changed to an ST-A per http://forum.nasaspaceflight.com/index.php?topic=17286.550
In the Arianespace Launch Schedule, it says that SES-15 is launching atop the Soyuz-STA Fregat-M variant.Any sources confirming that?
DutchSpace @DutchSpace 3m3 minutes agoMeanwhile #SES15 was moved from S1B to S3B last week for fueling and will move again today for launch prep on #Soyuz #VS17
DutchSpace @DutchSpace 1m1 minute agoLaunch is getting close, nice shot of #SES15 being mated with Fregat #Soyuz #VS17 #CSG @SES_Satellites
havent checked, a guess-> ST-B performance not needed, ST-A cheaper.
Quote from: Jester on 05/15/2017 11:19 amhavent checked, a guess-> ST-B performance not needed, ST-A cheaper.Maybe at some point this flight was supposed to carry another payload ?
DutchSpace @DutchSpace 7m7 minutes agoClose to launch, not to the moon but a nice shot anyway... #VS17 #SES15 #CSG #Soyuz
I'm wondering if it has to do with quality control at the Voronezh Mechanical Plant, where they make the Soyuz and Proton engines....
#Soyuz is ready for flight! The launch readiness review has cleared this vehicle for tomorrow’s #VS17 liftoff w/ @SES_Satellites’ #SES-15