Alphasat I-XL & INSAT-3D

Launch Time
Thu Jul 25, 2013 19:54 UTC

Flight VA215.


Ariane 5 ECA
Image Credit: Arianespace
Status: Retired
Price: $200.0 million
Liftoff Thrust: 15,120 kN
Payload to LEO: 21,000 kg
Payload to GTO: 10,500 kg
Stages: 2
Strap-ons: 2
Rocket Height: 53.0 m
Fairing Diameter: 5.4 m
Fairing Height: 17.0 m

Mission Details

Alphasat I-XL

Inmarsat-4A F4, also known as Alphasat and Inmarsat-XL, is a large geostationary communications I-4 satellite operated by UK-based Inmarsat in partnership with the European Space Agency. It is used to provide mobile communications to Africa and parts of Europe and Asia.

Inmarsat-4A F4 has been constructed by EADS Astrium and Thales Alenia Space based on the Alphabus satellite bus. It was the first Alphabus spacecraft to be launched, and as such it carries several experimental communications systems in addition to its commercial payload. The spacecraft had a launch mass of 6,649 kilograms (14,659 lb) and is expected to operate for at least fifteen years.

Payloads: 1
Total Mass: 6,649.0 kg
Geostationary Transfer Orbit


INSAT-3D is a meteorological, data relay, and satellite-aided search and rescue satellite developed by the Indian Space Research Organisation. The satellite has many new technology elements like a star sensor, micro-stepping Solar Array Drive Assembly (SADA) to reduce spacecraft disturbances, and a Bus Management Unit (BMU) for control as well as telecom and telemetry functions.

The mission goal is stated as "to provide an operational, environmental & storm warning system to protect life & property and also to monitor earth’s surface and carry out oceanic observations and also provide data dissemination capabilities."

Payloads: 1
Total Mass: 2,061.0 kg
Geostationary Transfer Orbit


ELA-3, Guiana Space Centre, French Guiana, France



40th orbital launch attempt


208th mission
5th mission of 2013
201st successful mission
64th consecutive successful mission

Ariane 5

70th mission
3rd mission of 2013
66th successful mission
56th consecutive successful mission