| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Agena D |
| Spacetrack catalog number | 35959 | 5060 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 15:36 | 2024 Dec 22 23:50 |
| Time of closest approach (UTC) | 2024 Dec 23 17:59:30.426 |
| Minimum distance | 4.263 km |
| Height difference | -3.644 km |
| Relative speed | 13.621 km/s |
| Angle between velocity vectors | 132° |
| Geographic position | 74.1°S, 150.2°E |
| Height | 817 km |
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