Spacecraft information: TANSEI-1
| 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 | 29.667° |
| Eccentricity | 0.00794 |
| RA ascending node | 5.483 hr |
| Argument perigee | 33.465° |
| Mean anomaly | 124.461° |
| Orbital period | 105.988 min |
| Epoch of osculation | 07 Aug 2026, 01:47 |
Derived Quantities
| Min Altitude | 988.8 km |
| Mean Altitude | 1047.8 km |
| Peak Altitude | 1106.7 km |
Orbital History
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