Spacecraft information: IRIDIUM 51
| Launched | 24 March 1998 |
| Flight ended | – |
| Status | Non-operational |
| Category |
Iridium
|
| Launch site | Taiyuan Space Center, PRC |
| Owner | United States |
| NORAD ID | 25262 |
| COSPAR ID | 1998-018A |
| Observing |
Current orbital elements
| Inclination | 86.373° |
| Eccentricity | 0.00468 |
| RA ascending node | 21.676 hr |
| Argument perigee | 265.076° |
| Mean anomaly | 94.516° |
| Orbital period | 92.155 min |
| Epoch of osculation | 14 Dec 2025, 21:17 |
Derived Quantities
| Min Altitude | 355.7 km |
| Mean Altitude | 387.3 km |
| Peak Altitude | 418.9 km |
Orbital History
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