SL-12 R/B(2)
| Launched | 11 July 1988 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 19288 |
| COSPAR ID | 1988-059B |
| Observing |
Timeline
| 1988 Jul 12 | – | Launch from Baikonur Cosmodrome |
| 1989 Jan 29 | – | Insertion into orbit around Mars |
| 1989 Mar 27 | – | Contact with spacecraft lost; mission ended |