| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1538 Rocket |
| Spacetrack catalog number | 33762 | 14760 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:49 | 2024 Dec 23 11:37 |
| Time of closest approach (UTC) | 2024 Dec 27 09:44:01.484 |
| Minimum distance | 2.215 km |
| Height difference | -1.917 km |
| Relative speed | 12.139 km/s |
| Angle between velocity vectors | 109° |
| Geographic position | 62.0°N, 20.4°E |
| Height | 783 km |
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