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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 | 29.668° |
| Eccentricity | 0.00798 |
| RA ascending node | 4.382 hr |
| Argument perigee | 281.560° |
| Mean anomaly | 207.061° |
| Orbital period | 105.990 min |
| Epoch of osculation | 01 Nov 2025, 15:35 |