Satellite Alphasat I-XL  (Inmarsat IV-A F4) of INMARSAT, Ltd./European Space Agency

Name of Satellite, Alternate Names Alphasat I-XL  (Inmarsat IV-A F4)
Country of Operator/Owner UK/ESA
Operator/Owner INMARSAT, Ltd./European Space Agency
Users Commercial/Government
Purpose Communications/Technology Development
Class of Orbit GEO
Type of Orbit
Longitude of GEO (degrees) 25
Perigee (km) 35786
Apogee (km) 35787
Eccentricity 1.18605671723222E-05
Inclination (degrees) 0.02
Period (minutes) 1436.09
Launch Mass (kg.) 6650
Dry Mass (kg.) 3370
Power (watts) 12000
Date of Launch 25-07-2013
Expected Lifetime 15 yrs.
Contractor Astrium
Country of Contractor France/UK/Germany/Spain
Launch Site Guiana Space Center
Launch Vehicle Ariane 5 ECA
COSPAR Number 2013-038A
NORAD Number 39215
Comments Partnership between INMARSAT and ESA. Expands INMARSAT´s communications and carries 4 technology demonstration packages.

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