| Official name | COSMOS 1691 DEB |
| Alternative name | Cosmos-1691 fragmentation debris |
| Cospar ID | 1985-094Z |
| Norad ID | 43315 |
| Launch date | 1985-10-09 |
| Launch site | PKMTR |
| Launch vehicle | Tsiklon-3 |
| RCS size | SMALL |
| Decay date | ON ORBIT |
| Period (min) | 113.47 |
| Inclination (deg) | 82.57 |
| Perigee (km) | 1369 |
| Apogee (km) | 1402 |
| Eccentricity | 0.0119090581017683 |
| Mean motion (revs. per day) | 12.6905790076672 |
| Semi-Major axis (km) | 7763.635 |
| Raan (deg) | 46.7454 |
| Arg of perigee (deg) | 128.6636 |






