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Spacecraft information: OPS 5390
Launch Details
| Launched | 5 June 1979 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 11389 |
| COSPAR ID | 1979-050A |
| Alternative names |
DMSP 5D-1 F4 |
| Observing |
Current orbital elements
| Inclination | 98.632° |
| Eccentricity | 0.00125 |
| RA ascending node | 10.839 hr |
| Argument perigee | 29.220° |
| Mean anomaly | 330.969° |
| Orbital period | 100.745 min |
| Epoch of osculation | 27 Jul 2026, 06:54 |
Derived Quantities
| Min Altitude | 792.0 km |
| Mean Altitude | 801.0 km |
| Peak Altitude | 810.0 km |
Orbital History
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