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NATO 4A R/B
Launch Details
| Launched | 7 January 1991 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21049 |
| COSPAR ID | 1991-001C |
| Alternative names |
PAM-D |
| Observing |
Current orbital elements
| Inclination | 25.852° |
| Eccentricity | 0.70635 |
| RA ascending node | 4.186 hr |
| Argument perigee | 72.251° |
| Mean anomaly | 26.244° |
| Orbital period | 635.558 min |
| Epoch of osculation | 13 Oct 2025, 07:10 |
Derived Quantities
| Min Altitude | 819.6 km |
| Mean Altitude | 18115.7 km |
| Peak Altitude | 35411.8 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.