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VANGUARD R/B
Launch Details
| Launched | 16 March 1958 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 16 |
| COSPAR ID | 1958-002A |
| Observing |
Current orbital elements
| Inclination | 34.277° |
| Eccentricity | 0.20243 |
| RA ascending node | 7.956 hr |
| Argument perigee | 254.738° |
| Mean anomaly | 82.169° |
| Orbital period | 137.199 min |
| Epoch of osculation | 11 Aug 2025, 22:55 |
Derived Quantities
| Min Altitude | 656.9 km |
| Mean Altitude | 2440.7 km |
| Peak Altitude | 4224.5 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.