| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CAS-6 |
| Spacetrack catalog number | 47059 | 44881 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 18 23:17 | 2024 Dec 23 04:56 |
| Time of closest approach (UTC) | 2024 Dec 23 14:21:35.382 |
| Minimum distance | 2.829 km |
| Height difference | -2.766 km |
| Relative speed | 14.852 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 62.1°S, 138.6°E |
| Height | 647 km |
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