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VANGUARD 3
Launch Details
| Launched | 17 September 1959 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20 |
| COSPAR ID | 1959-007A |
| Observing |
Current orbital elements
| Inclination | 33.339° |
| Eccentricity | 0.16391 |
| RA ascending node | 14.751 hr |
| Argument perigee | 129.510° |
| Mean anomaly | 246.227° |
| Orbital period | 123.967 min |
| Epoch of osculation | 11 Dec 2025, 20:59 |
Derived Quantities
| Min Altitude | 514.7 km |
| Mean Altitude | 1864.6 km |
| Peak Altitude | 3214.6 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.