Satellite Skynet 4E of Ministry of Defence

Name of Satellite, Alternate Names Skynet 4E
Country of Operator/Owner United Kingdom
Operator/Owner Ministry of Defence
Users Military
Purpose Communications
Class of Orbit GEO
Type of Orbit
Longitude of GEO (degrees) 35.58
Perigee (km) 35774
Apogee (km) 35797
Eccentricity 0.00027279951607738
Inclination (degrees) 4.99
Period (minutes) 1436.06
Launch Mass (kg.) 1510
Dry Mass (kg.) 759
Power (watts) 1200
Date of Launch 26-02-1999
Expected Lifetime 7 yrs.
Contractor Astrium
Country of Contractor France/UK/Germany
Launch Site Guiana Space Center
Launch Vehicle Ariane 44L
COSPAR Number 1999-009B
NORAD Number 25639
Comments Used primarily by UK´s armed forces, government departments, agencies and other organizations that require secure communications.


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