Some cross-posting from the Arianespace launch schedule thread, regarding this launch's hardware and capabilities. This Hispasat satellite appears to max out, or slightly exceed the maximum payload capacity of Soyuz+Fregat from Kourou. Quote from: eeergo on 11/03/2016 05:01 pmQuote from: ZachS09 on 11/03/2016 02:20 pmQuote from: Jester on 11/03/2016 01:34 pmVA234 A5 ECA 20th of December 2016 at 17:30 localVS16 ST-B (Hispasat AG1) 27th of January 2017 at 22:03:34 localThat's amazing. Hispasat AG1 gets transferred from an Ariane 5ECA to a Soyuz-STB Fregat-MT. Maybe the satellite was edited a bit to fit on the Soyuz (i.e. less mass).Hispasat AG1 (aka 36W-1) is 3.2 tonnes http://www.hispasat.com/es/flota-de-satelites/futuros-satelites/hispasat-36w-1 which is precisely the GTO limit for Soyuz-ST from CSG (3250 kg)EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?This bird has been delayed by launcher unavailability and problems during the test program of the new REDSAT platform, since at least 2013, and has prompted Hispasat to lease capacity from Canada's Nimiq 2.Quote from: russianhalo117 on 11/03/2016 08:09 pmQuote from: zubenelgenubi on 11/03/2016 05:31 pmQuote from: eeergo on 11/03/2016 05:01 pmEDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?Or found a way to squeeze extra performance from the Fregat-MT upper stage?Depends on the Fregat-MT number AFAIK their is version with enhanced features being developed. I doubt an enhanced Fregat-MT will have flown on a Russian Federal mission before this commercial flight starts to space.Quote from: Jester on 11/04/2016 10:05 amAFAIK is a standard Fregat-MT, same one we used for our Galileo launches.Here's another thought: Some Falcon 9 GTO launches have been GEO-1800 m/s, instead of the customary GEO-1500 m/s. The 300 m/s difference must be made up by the spacecraft.Will the same strategy be used in this case?
Quote from: ZachS09 on 11/03/2016 02:20 pmQuote from: Jester on 11/03/2016 01:34 pmVA234 A5 ECA 20th of December 2016 at 17:30 localVS16 ST-B (Hispasat AG1) 27th of January 2017 at 22:03:34 localThat's amazing. Hispasat AG1 gets transferred from an Ariane 5ECA to a Soyuz-STB Fregat-MT. Maybe the satellite was edited a bit to fit on the Soyuz (i.e. less mass).Hispasat AG1 (aka 36W-1) is 3.2 tonnes http://www.hispasat.com/es/flota-de-satelites/futuros-satelites/hispasat-36w-1 which is precisely the GTO limit for Soyuz-ST from CSG (3250 kg)EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?This bird has been delayed by launcher unavailability and problems during the test program of the new REDSAT platform, since at least 2013, and has prompted Hispasat to lease capacity from Canada's Nimiq 2.
Quote from: Jester on 11/03/2016 01:34 pmVA234 A5 ECA 20th of December 2016 at 17:30 localVS16 ST-B (Hispasat AG1) 27th of January 2017 at 22:03:34 localThat's amazing. Hispasat AG1 gets transferred from an Ariane 5ECA to a Soyuz-STB Fregat-MT. Maybe the satellite was edited a bit to fit on the Soyuz (i.e. less mass).
VA234 A5 ECA 20th of December 2016 at 17:30 localVS16 ST-B (Hispasat AG1) 27th of January 2017 at 22:03:34 local
Quote from: zubenelgenubi on 11/03/2016 05:31 pmQuote from: eeergo on 11/03/2016 05:01 pmEDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?Or found a way to squeeze extra performance from the Fregat-MT upper stage?Depends on the Fregat-MT number AFAIK their is version with enhanced features being developed. I doubt an enhanced Fregat-MT will have flown on a Russian Federal mission before this commercial flight starts to space.
Quote from: eeergo on 11/03/2016 05:01 pmEDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?Or found a way to squeeze extra performance from the Fregat-MT upper stage?
EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?
AFAIK is a standard Fregat-MT, same one we used for our Galileo launches.
2 objects have been cataloged by USSTRATCOM:2017-006A/41942 in 239 x 35639 km x 5.54°2017-006B/41943 in 239 x 35593 km x 5.42°
Quote from: zubenelgenubi on 11/04/2016 12:35 pmSome cross-posting from the Arianespace launch schedule thread, regarding this launch's hardware and capabilities. This Hispasat satellite appears to max out, or slightly exceed the maximum payload capacity of Soyuz+Fregat from Kourou. Quote from: eeergo on 11/03/2016 05:01 pmHispasat AG1 (aka 36W-1) is 3.2 tonnes http://www.hispasat.com/es/flota-de-satelites/futuros-satelites/hispasat-36w-1 which is precisely the GTO limit for Soyuz-ST from CSG (3250 kg)EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?This bird has been delayed by launcher unavailability and problems during the test program of the new REDSAT platform, since at least 2013, and has prompted Hispasat to lease capacity from Canada's Nimiq 2.Here's another thought: Some Falcon 9 GTO launches have been GEO-1800 m/s, instead of the customary GEO-1500 m/s. The 300 m/s difference must be made up by the spacecraft.Will the same strategy be used in this case?Would the orbits below be the initial GTO orbit of Hispasat-AG1 and the disposal orbit of the Fregat stage?Quote from: input~2 on 01/28/2017 06:59 am2 objects have been cataloged by USSTRATCOM:2017-006A/41942 in 239 x 35639 km x 5.54°2017-006B/41943 in 239 x 35593 km x 5.42°Also, I see the spacecraft massed out at 3221 kg.What was the solution to the apparent issue of "this satellite + adapter is too heavy to launch to GTO on a Soyuz-STB/Fregat-MT"?Example: Was this launch similar to the Falcon 9 GEO-1800 m/s launches?Or, was this launch within the envelope of the launch vehicle's capabilities, including reaching a "standard" GEO-1500 m/s orbit?
Some cross-posting from the Arianespace launch schedule thread, regarding this launch's hardware and capabilities. This Hispasat satellite appears to max out, or slightly exceed the maximum payload capacity of Soyuz+Fregat from Kourou. Quote from: eeergo on 11/03/2016 05:01 pmHispasat AG1 (aka 36W-1) is 3.2 tonnes http://www.hispasat.com/es/flota-de-satelites/futuros-satelites/hispasat-36w-1 which is precisely the GTO limit for Soyuz-ST from CSG (3250 kg)EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?This bird has been delayed by launcher unavailability and problems during the test program of the new REDSAT platform, since at least 2013, and has prompted Hispasat to lease capacity from Canada's Nimiq 2.Here's another thought: Some Falcon 9 GTO launches have been GEO-1800 m/s, instead of the customary GEO-1500 m/s. The 300 m/s difference must be made up by the spacecraft.Will the same strategy be used in this case?
Hispasat AG1 (aka 36W-1) is 3.2 tonnes http://www.hispasat.com/es/flota-de-satelites/futuros-satelites/hispasat-36w-1 which is precisely the GTO limit for Soyuz-ST from CSG (3250 kg)EDIT: Upon more careful examination, I realized 3.25 tonnes is for SC+adapter, so it might be true they sacrificed a bit of propellant or found some other measure to lighten the satellite -or found a way to squeeze extra performance by the Soyuz?This bird has been delayed by launcher unavailability and problems during the test program of the new REDSAT platform, since at least 2013, and has prompted Hispasat to lease capacity from Canada's Nimiq 2.
Quote from: Jester on 01/25/2017 11:22 amFregat = MT 133-06Are you sure?
Fregat = MT 133-06
Would the orbits below be the initial GTO orbit of Hispasat-AG1 and the disposal orbit of the Fregat stage?Quote from: input~2 on 01/28/2017 06:59 am2 objects have been cataloged by USSTRATCOM:2017-006A/41942 in 239 x 35639 km x 5.54°2017-006B/41943 in 239 x 35593 km x 5.42°
After four months of exhaustive testing in space, the flagship SmallGEO mission Hispasat 36W-1 has passed all trials with flying colours, which means control has been handed to the operator.