Spacecraft information: COSMOS 1731
| Launched | 6 February 1986 |
| Flight ended | 2 October 1986 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 16589 |
| COSPAR ID | 1986-013A |
| Observing |
Launched alongside
SL-4 R/B