M-3S R/B
| Launched | 20 February 1981 |
| Flight ended | 25 May 1991 |
| Status | Decayed |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 12308 |
| COSPAR ID | 1981-017B |
| Observing |
M-3S R/B
| Launched | 20 February 1981 |
| Flight ended | 25 May 1991 |
| Status | Decayed |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 12308 |
| COSPAR ID | 1981-017B |
| Observing |