Browse satellite catalog
|
Map of low-earth satellites
|
Satellites above your horizon
|
3D map of low-earth satellites
Spacecraft information: USA 57
Launch Details
| Launched | 10 April 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 20561 |
| COSPAR ID | 1990-031B |
| Observing |
Current orbital elements
| Inclination | 89.848° |
| Eccentricity | 0.00668 |
| RA ascending node | 17.890 hr |
| Argument perigee | 1.778° |
| Mean anomaly | 358.367° |
| Orbital period | 97.762 min |
| Epoch of osculation | 12 Dec 2025, 06:22 |
Derived Quantities
| Min Altitude | 611.8 km |
| Mean Altitude | 658.7 km |
| Peak Altitude | 705.7 km |
Launched alongside
USA 56 USA 58 ATLAS 28E R/B ATLAS 28E DEB ATLAS 28E DEB ATLAS 28E DEB ATLAS 28E DEB USA 56-58 DEBOrbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.