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OPS 5721
Launch Details
| Launched | 10 September 1976 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 9415 |
| COSPAR ID | 1976-091A |
| Alternative names |
DMSP 5D-1 F1 |
| Observing |
Current orbital elements
| Inclination | 98.312° |
| Eccentricity | 0.00166 |
| RA ascending node | 22.779 hr |
| Argument perigee | 218.557° |
| Mean anomaly | 141.443° |
| Orbital period | 100.873 min |
| Epoch of osculation | 28 Jun 2025, 10:23 |
Derived Quantities
| Min Altitude | 795.2 km |
| Mean Altitude | 807.1 km |
| Peak Altitude | 819.0 km |
Orbital History
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