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Spacecraft information: VANGUARD 1
Launch Details
| Launched | 16 March 1958 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 5 |
| COSPAR ID | 1958-002B |
| Observing |
Current orbital elements
| Inclination | 34.245° |
| Eccentricity | 0.18363 |
| RA ascending node | 11.721 hr |
| Argument perigee | 340.870° |
| Mean anomaly | 13.086° |
| Orbital period | 132.594 min |
| Epoch of osculation | 01 Aug 2026, 01:45 |
Derived Quantities
| Min Altitude | 660.7 km |
| Mean Altitude | 2242.4 km |
| Peak Altitude | 3824.1 km |
Orbital History
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