Has it been stated what the remaining deltaV to GSO will be after Fregat?
And that's a successful launch for #SES15! Well done @Arianespace #Soyuz
@SES_Satellites CTO Halliwell says SES-15 is sending telemetry & is health in orbit. Mission success for @Arianespace and Soyuz-to-GTO.
@SES_Satellites CTO Halliwell says SES-15 will enter service in late December, so a 7-month voyage to GEO.
So do we know why ST-B was used instead of ST-A? The mass of SES-15 seems to be less than ST-A maximum payload mass.
Any serial numbers for the Soyuz and the Fregat?