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 | 27478 |
| COSPAR ID | 1961-028H |
| Observing |
Current orbital elements
| Inclination | 95.823° |
| Eccentricity | 0.02714 |
| RA ascending node | 12.143 hr |
| Argument perigee | 137.987° |
| Mean anomaly | 247.453° |
| Orbital period | 166.153 min |
| Epoch of osculation | 27 Dec 2025, 11:11 |
Derived Quantities
| Min Altitude | 3368.8 km |
| Mean Altitude | 3640.5 km |
| Peak Altitude | 3912.2 km |
Orbital History
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