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Spacecraft information: USA 75
Launch Details
| Launched | 23 November 1991 |
| Flight ended | – |
| Status | Partially operational |
| Category |
Active satellites
|
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 21805 |
| COSPAR ID | 1991-080B |
| Alternative names |
DSP 16 |
| Observing |
Current orbital elements
| Inclination | 14.036° |
| Eccentricity | 0.00037 |
| RA ascending node | 23.062 hr |
| Argument perigee | 77.219° |
| Mean anomaly | 98.947° |
| Orbital period | 1451.852 min |
| Epoch of osculation | 18 Apr 2026, 04:57 |
Derived Quantities
| Min Altitude | 36085.7 km |
| Mean Altitude | 36101.6 km |
| Peak Altitude | 36117.4 km |
Orbital History
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