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Spacecraft information: IRIDIUM 57
Launch Details
| Launched | 29 March 1998 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 25273 |
| COSPAR ID | 1998-019B |
| Observing |
Current orbital elements
| Inclination | 86.396° |
| Eccentricity | 0.00021 |
| RA ascending node | 23.332 hr |
| Argument perigee | 88.399° |
| Mean anomaly | 271.744° |
| Orbital period | 100.266 min |
| Epoch of osculation | 22 Jun 2026, 10:48 |
Derived Quantities
| Min Altitude | 776.8 km |
| Mean Altitude | 778.3 km |
| Peak Altitude | 779.7 km |
Orbital History
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