Spacecraft information: MIDAS 3 DEB
| Launched | 11 July 1961 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 188 |
| COSPAR ID | 1961-018C |
| Observing |
Current orbital elements
| Inclination | 91.104° |
| Eccentricity | 0.01213 |
| RA ascending node | 13.354 hr |
| Argument perigee | 219.374° |
| Mean anomaly | 139.827° |
| Orbital period | 161.105 min |
| Epoch of osculation | 20 Dec 2025, 12:46 |
Derived Quantities
| Min Altitude | 3317.7 km |
| Mean Altitude | 3436.7 km |
| Peak Altitude | 3555.6 km |
Orbital History
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