| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1302 Rocket |
| Spacetrack catalog number | 35459 | 12792 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 16:06 | 2024 Dec 23 04:09 |
| Time of closest approach (UTC) | 2024 Dec 25 01:43:52.435 |
| Minimum distance | 3.036 km |
| Height difference | 2.330 km |
| Relative speed | 11.585 km/s |
| Angle between velocity vectors | 102° |
| Geographic position | 64.2°N, 38.8°E |
| Height | 777 km |
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