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SPACENET 4
Launch Details
Launched | 12 April 1991 |
Flight ended | – |
Status | Non-operational |
Launch site | Air Force Eastern Test Range, Florida, USA |
Owner | United States |
NORAD ID | 21227 |
COSPAR ID | 1991-028A |
Alternative names |
ASC 2 |
Observing |
Current orbital elements
Inclination | 13.509° |
Eccentricity | 0.00049 |
RA ascending node | 1.062 hr |
Argument perigee | 293.546° |
Mean anomaly | 64.676° |
Orbital period | 1446.269 min |
Epoch of osculation | 02 Sep 2025, 11:33 |
Derived Quantities
Min Altitude | 35972.0 km |
Mean Altitude | 35992.6 km |
Peak Altitude | 36013.2 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.