Payload
ECHO (AO-51)
NonoperationalPayloadLEO
ECHO (AO-51) is a United States payload satellite, launched on June 29, 2004 into LEO.
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Launch
- Launch date
- June 29, 2004 at 06:30 AM UTC
- Launch site
- Baikonur Cosmodrome, Kazakhstan
- Launched by
- Dnepr 1 →
- Operator
- ISC Kosmotras
- Mission
- Aprizesat-2
- Launch record
- View full launch →
Orbit
- Orbit regime
- LEO
- Apoapsis
- 803 km
- Periapsis
- 688 km
- Inclination
- 98.66°
- Orbital period
- 99.73 min
Spacecraft
- Operator
- United States
- Launch mass
- 10 kg
Identity
- COSPAR (Int'l)
- 2004-025K
- NORAD catalog №
- 28375
- Object type
- Payload
- Owner / operator
United States- Radar cross-section
- 0.079 m²
- Status
- Nonoperational
End of mission
- Fate
- No longer operational — remains in orbit as inactive.
- Final status
- Nonoperational