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USA 28
Launch Details
| Launched | 28 November 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 18583 |
| COSPAR ID | 1987-097A |
| Alternative names |
DSP 13 |
| Observing |
Current orbital elements
| Inclination | 12.365° |
| Eccentricity | 0.00251 |
| RA ascending node | 22.686 hr |
| Argument perigee | 266.900° |
| Mean anomaly | 259.484° |
| Orbital period | 1463.573 min |
| Epoch of osculation | 08 Jul 2025, 16:47 |
Derived Quantities
| Min Altitude | 36222.7 km |
| Mean Altitude | 36329.8 km |
| Peak Altitude | 36437.0 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.
Launched alongside
TITAN 34D TRANSTAGE R/B