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HIPPARCOS
Launch Details
| Launched | 7 August 1989 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Europe's Spaceport, Kourou, French Guiana |
| Owner | European Space Agency |
| NORAD ID | 20169 |
| COSPAR ID | 1989-062B |
| Observing |
Current orbital elements
| Inclination | 6.745° |
| Eccentricity | 0.71777 |
| RA ascending node | 5.784 hr |
| Argument perigee | 89.333° |
| Mean anomaly | 344.515° |
| Orbital period | 636.167 min |
| Epoch of osculation | 14 Jul 2025, 11:40 |
Derived Quantities
| Min Altitude | 544.3 km |
| Mean Altitude | 18131.3 km |
| Peak Altitude | 35718.3 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.