| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Agena D |
| Spacetrack catalog number | 35605 | 4311 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 17:09 | 2024 Dec 22 20:27 |
| Time of closest approach (UTC) | 2024 Dec 25 17:30:23.023 |
| Minimum distance | 4.882 km |
| Height difference | -4.020 km |
| Relative speed | 10.753 km/s |
| Angle between velocity vectors | 91° |
| Geographic position | 64.1°N, 19.3°E |
| Height | 638 km |
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