Spacecraft information: MIDAS 4 DEB
| Launched | 20 October 1961 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 2009 |
| COSPAR ID | 1961-028E |
| Observing |
Current orbital elements
| Inclination | 95.813° |
| Eccentricity | 0.01227 |
| RA ascending node | 13.037 hr |
| Argument perigee | 58.012° |
| Mean anomaly | 303.259° |
| Orbital period | 165.709 min |
| Epoch of osculation | 04 Jan 2026, 11:30 |
Derived Quantities
| Min Altitude | 3500.0 km |
| Mean Altitude | 3622.7 km |
| Peak Altitude | 3745.3 km |
Orbital History
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