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TANSEI-1
Launch Details
| Launched | 15 February 1971 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 4952 |
| COSPAR ID | 1971-011A |
| Alternative names |
MS-T1 |
| Observing |
Current orbital elements
| Inclination | 29.666° |
| Eccentricity | 0.00796 |
| RA ascending node | 17.875 hr |
| Argument perigee | 103.816° |
| Mean anomaly | 23.423° |
| Orbital period | 105.990 min |
| Epoch of osculation | 14 Jul 2025, 15:32 |