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Communications

INMARSAT 4-F1

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Partially operationalCommunicationsGEONORAD 28628

INMARSAT 4-F1 is a INMARSAT, Ltd. communications satellite, launched on March 11, 2005 into GEO.

Launch

Launch date: March 11, 2005 at 09:42 PM UTC
Launch site: Cape Canaveral SFS, USA
Launched by: Atlas V 431 →
Operator: Lockheed Martin
Mission: INMARSAT 4 F1
Launch record: View full launch →

Orbit

Orbit regime: GEO
Apoapsis: 35,797 km
Periapsis: 35,776 km
Inclination: 5.16°
Orbital period: 1436.1 min
Orbit data fetched: October 14, 2026 at 10:43 AM UTC

Spacecraft

Operator: INMARSAT, Ltd.
Manufacturer: EADS Astrium
Users: Commercial
Launch mass: 5,940 kg
Power: 13,000 W
Design lifetime: 15 years
Dimensions: 7 × 2.9 × 2.9 m

Identity

COSPAR (Int'l): 2005-009A
NORAD catalog №: 28628
Object type: Payload
Owner / operator: Isle of Man
Radar cross-section: 5.0119 m²
Status: Partially operational