Payload
ESIAFI 1 (COMSTAR 4)
NonoperationalPayloadGEO
ESIAFI 1 (COMSTAR 4) is a United States payload satellite, launched on February 21, 1981 into GEO.
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Launch
- Launch date
- February 21, 1981 at 11:23 PM UTC
- Launch site
- Cape Canaveral SFS, USA
- Launched by
- Atlas SLV-3D Centaur →
- Operator
- Convair
- Mission
- Comstar 1D
- Launch record
- View full launch →
Orbit
- Orbit regime
- GEO
- Apoapsis
- 35,801 km
- Periapsis
- 35,773 km
- Inclination
- 8.71°
- Orbital period
- 1436.1 min
Spacecraft
- Operator
- United States
- Launch mass
- 1,490 kg
Identity
- COSPAR (Int'l)
- 1981-018A
- NORAD catalog №
- 12309
- Object type
- Payload
- Owner / operator
United States- Radar cross-section
- 22.06 m²
- Status
- Nonoperational
End of mission
- Fate
- No longer operational — remains in orbit as inactive.
- Final status
- Nonoperational