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IRIDIUM 21
Launch Details
| Launched | 10 June 1999 |
| Flight ended | 23 May 2018 |
| Status | Decayed |
| Launch site | Taiyuan Space Center, PRC |
| Owner | United States |
| NORAD ID | 25778 |
| COSPAR ID | 1999-032B |
| Observing |
Current orbital elements
| Inclination | 86.373° |
| Eccentricity | 0.00329 |
| RA ascending node | 5.283 hr |
| Argument perigee | 109.916° |
| Mean anomaly | 250.570° |
| Orbital period | 87.473 min |
| Epoch of osculation | 24 May 2018, 10:42 |
Derived Quantities
| Min Altitude | 135.0 km |
| Mean Altitude | 156.4 km |
| Peak Altitude | 177.9 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.