Soyuz STA/Fregat | SES-15
Successful Launch
L - -- : -- : -- : --
May 18, 2017, 11:54 a.m.
Instantaneous launch window.
Instantaneous launch window.
SES 15 is a geostationary communications satellite operating in Ka- and Ku-bands in North America, which uses electric propulsion for initial orbit raising and all on-orbit manoeuvres.
The 2.1a version includes conversion from analog to digital flight control system and uprated engines on the booster and the first stage with improved injection systems. The new digital flight control and telemetry systems allow the rocket to launch from a fixed rather than angled launch platform and adjust its heading in flight. A digital control system also enables the launch of larger commercial satellites with wider and longer payload fairings such as the ST-type fairing. These fairings introduce too much aerodynamic instability for the old analog system to handle. This stage continues to use the RD-0110 engine. The 2.1a/ST version is sometimes called Soyuz ST-A.
Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.
INFO WIKIGaofen is a series of civilian Earth observation satellites developed and launched for the China High-definition Earth Observation System (CHEOS), ...
GPS-IIIA (Global Positioning System) is the first evolution stage of the third generation of the GPS satellites. It consists of the first ten (know...
This satellite is a part of the geostationary component of the 3rd phase of the Chinese Beidou (Compass) satellite navigation system. It features a...
Gaofen is a series of civilian Earth observation satellites developed and launched for the China High-definition Earth Observation System (CHEOS), ...
Interstellar Technologies will launch the 'MOMO' observation rocket on its fifth mission.
A batch of 58 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system. This launch will also ca...
This rideshare mission carries small satellites for NASA, University of New South Wales and for NRO. The mission has been named "Don't Stop Me Now"...
Haiyang is a series of Chinese marine remote sensing satellites. Haiyang 1C is the follow-up of the Haiyang 1A and 1B satellites. It is intended fo...
A batch of 60 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Gaofen is a series of civilian Earth observation satellites developed and launched for the China High-definition Earth Observation System (CHEOS), ...
