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RIGIDSPHERE 2
Launch Details
| Launched | 6 August 1971 |
| Flight ended | – |
| Status | Operational |
| Categories |
Radar Calibration
Active satellites |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 5398 |
| COSPAR ID | 1971-067E |
| Alternative names |
LCS 4 |
| Observing |
Current orbital elements
| Inclination | 87.617° |
| Eccentricity | 0.00623 |
| RA ascending node | 3.674 hr |
| Argument perigee | 65.824° |
| Mean anomaly | 294.945° |
| Orbital period | 100.186 min |
| Epoch of osculation | 15 Sep 2025, 06:15 |
Derived Quantities
| Min Altitude | 729.9 km |
| Mean Altitude | 774.5 km |
| Peak Altitude | 819.0 km |
Orbital History
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