| Primary satellite | Secondary satellite |
| Name | CSL-04 Deb | COSMOS 2251 DEB |
| Spacetrack catalog number | 26266 | 34784 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:22 | 2024 Dec 23 04:43 |
| Time of closest approach (UTC) | 2024 Dec 24 19:04:05.943 |
| Minimum distance | 3.278 km |
| Height difference | -1.788 km |
| Relative speed | 14.602 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 69.7°N, 28.5°E |
| Height | 701 km |
|