| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 18096 | 35469 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 06 17:28 | 2024 Dec 06 18:36 |
| Time of closest approach (UTC) | 2024 Nov 07 05:49:58.888 |
| Minimum distance | 16.923 km |
| Height difference | -4.662 km |
| Relative speed | 11.834 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 63.3°N, 43.4°W |
| Height | 771 km |
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