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USA 23
Launch Details
| Launched | 14 May 1987 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 18009 |
| COSPAR ID | 1987-043E |
| Observing |
Current orbital elements
| Inclination | 63.292° |
| Eccentricity | 0.08222 |
| RA ascending node | 17.563 hr |
| Argument perigee | 98.413° |
| Mean anomaly | 271.088° |
| Orbital period | 104.375 min |
| Epoch of osculation | 28 Jun 2025, 13:38 |
Derived Quantities
| Min Altitude | 368.5 km |
| Mean Altitude | 972.3 km |
| Peak Altitude | 1576.0 km |
Orbital History
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