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IRIDIUM 55
Launch Details
| Launched | 29 March 1998 |
| Flight ended | 30 March 2019 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 25272 |
| COSPAR ID | 1998-019A |
| Observing |
Current orbital elements
| Inclination | 86.681° |
| Eccentricity | 0.00750 |
| RA ascending node | 0.907 hr |
| Argument perigee | 116.738° |
| Mean anomaly | 244.873° |
| Orbital period | 88.106 min |
| Epoch of osculation | 31 Mar 2019, 00:32 |
Derived Quantities
| Min Altitude | 138.7 km |
| Mean Altitude | 187.9 km |
| Peak Altitude | 237.1 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.