M-3S2 R/B(2)
| Launched | 23 January 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 20451 |
| COSPAR ID | 1990-007D |
| Observing |
M-3S2 R/B(2)
| Launched | 23 January 1990 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) |
| Owner | Japan |
| NORAD ID | 20451 |
| COSPAR ID | 1990-007D |
| Observing |