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Spacecraft information: POLAR BEAR
Launch Details
| Launched | 13 November 1986 |
| Flight ended | – |
| Status | Unknown |
| Category |
Navy Navigation Satellite System (NNSS)
|
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 17070 |
| COSPAR ID | 1986-088A |
| Observing |
Current orbital elements
| Inclination | 89.620° |
| Eccentricity | 0.00390 |
| RA ascending node | 11.825 hr |
| Argument perigee | 355.855° |
| Mean anomaly | 176.613° |
| Orbital period | 104.706 min |
| Epoch of osculation | 23 May 2026, 12:31 |
Derived Quantities
| Min Altitude | 959.1 km |
| Mean Altitude | 987.8 km |
| Peak Altitude | 1016.5 km |
Orbital History
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