Spacecraft information: USA 23
| 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 | 63.293° |
| Eccentricity | 0.07892 |
| RA ascending node | 14.002 hr |
| Argument perigee | 103.832° |
| Mean anomaly | 265.175° |
| Orbital period | 103.891 min |
| Epoch of osculation | 02 Apr 2026, 08:00 |
Derived Quantities
| Min Altitude | 371.8 km |
| Mean Altitude | 949.6 km |
| Peak Altitude | 1527.3 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.