Spacecraft information: CALSPHERE 1
| Launched | 5 October 1964 |
| Flight ended | – |
| Status | Operational |
| Categories |
Radar Calibration
Active satellites |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 900 |
| COSPAR ID | 1964-063C |
| Observing |
Current orbital elements
| Inclination | 90.216° |
| Eccentricity | 0.00242 |
| RA ascending node | 4.581 hr |
| Argument perigee | 335.119° |
| Mean anomaly | 175.071° |
| Orbital period | 104.617 min |
| Epoch of osculation | 05 Feb 2026, 13:00 |
Derived Quantities
| Min Altitude | 965.8 km |
| Mean Altitude | 983.6 km |
| Peak Altitude | 1001.4 km |
Orbital History
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