Alphasat I-XL

ESA - Inmarsat

Spacecraft nº:

Inmarsat spacecraft nº: 13

Also called Inmarsat XL and Inmarsat 4A-F4

Launch data:

Designation 39215 / 13038A
Launch date 25 July 2013 - 19:54 UT
Launch site Ko, ELA-3
Launch vehicle  Ariane-5 ECA (VA214)
Mission Mobile communications
Geostationary orbit:
Perigee / Apogee 35785 x 35804 km
Inclination 0.2 deg
Period 1436.1 min

Artist′s rendition of the deployed Alphasat I spacecraft (image credit: ESA)

Launched together with: Insat 3D

Spacecraft data:

Prime manufacturer EADS Astrium, Thales Alenia Space
Platform Alphabus
Operator ESA, Inmarsat
Mass at launch  6550 kg
Dry Mass ~3500 kg
Basic shape  
Dimension (m) 
Solar array 2 deployable solar arrays
Propulsion EAM, SPT-100 plasma thrusters
DC power  
Design lifetime  15 yrs

Allocation of Service Module element manufacturing to European companies (image credit: CNES)

Photo of the Alphasat being lowered onto the Arianespace flight adapter in Kourou (image credit: ESA)


Mission details:

External links:

Ref.: #7(JR683), #12, #228, #242 - update: 02.07.20 Home