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Spacecraft information: ECHO
Launch Details
| Launched | 28 June 2004 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | United States |
| NORAD ID | 28375 |
| COSPAR ID | 2004-025K |
| Alternative names |
AO-51 |
| Observing |
Current orbital elements
| Inclination | 98.662° |
| Eccentricity | 0.00813 |
| RA ascending node | 9.602 hr |
| Argument perigee | 83.075° |
| Mean anomaly | 277.968° |
| Orbital period | 99.731 min |
| Epoch of osculation | 28 Jun 2026, 20:31 |
Derived Quantities
| Min Altitude | 694.9 km |
| Mean Altitude | 752.8 km |
| Peak Altitude | 810.8 km |
Launched alongside
APRIZESAT 2 SL-24 R/B DEMETER SAUDICOMSAT 1 SAUDICOMSAT 2 SAUDISAT 2 APRIZESAT 1 UNISAT-3 SL-24 DEB SL-24 DEBOrbital History
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