SL-4 R/B(1)
| Launched | 21 September 1999 |
| Flight ended | 16 February 2000 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 25911 |
| COSPAR ID | 1999-049E |
| Observing |