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 | 90.221° |
| Eccentricity | 0.00245 |
| RA ascending node | 4.835 hr |
| Argument perigee | 190.230° |
| Mean anomaly | 241.842° |
| Orbital period | 104.601 min |
| Epoch of osculation | 19 Jul 2026, 12:19 |
Derived Quantities
| Min Altitude | 964.9 km |
| Mean Altitude | 982.9 km |
| Peak Altitude | 1000.9 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.