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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 | 34.255° |
| Eccentricity | 0.18370 |
| RA ascending node | 6.870 hr |
| Argument perigee | 281.176° |
| Mean anomaly | 58.873° |
| Orbital period | 132.600 min |
| Epoch of osculation | 29 Apr 2026, 23:47 |
Derived Quantities
| Min Altitude | 660.3 km |
| Mean Altitude | 2242.7 km |
| Peak Altitude | 3825.0 km |
Orbital History
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