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Spacecraft information: SIRIUS W
Launch Details
| Launched | 26 August 1989 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | Sweden |
| NORAD ID | 20193 |
| COSPAR ID | 1989-067A |
| Alternative names |
MARCOPOLO 1 |
| Observing |
Current orbital elements
| Inclination | 14.842° |
| Eccentricity | 0.00042 |
| RA ascending node | 23.993 hr |
| Argument perigee | 65.771° |
| Mean anomaly | 303.971° |
| Orbital period | 1451.850 min |
| Epoch of osculation | 18 Aug 2026, 08:56 |
Derived Quantities
| Min Altitude | 36083.8 km |
| Mean Altitude | 36101.5 km |
| Peak Altitude | 36119.2 km |
Orbital History
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