| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 18096 | 33973 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:57 | 2024 Dec 22 14:47 |
| Time of closest approach (UTC) | 2024 Dec 28 15:36:22.512 |
| Minimum distance | 2.457 km |
| Height difference | 1.733 km |
| Relative speed | 14.359 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 6.3°N, 119.1°W |
| Height | 761 km |
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