| Primary satellite | Secondary satellite |
| Name | Cosmos 1954 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 19257 | 34814 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 06 10:52 | 2024 Dec 06 20:39 |
| Time of closest approach (UTC) | 2024 Nov 08 17:23:49.535 |
| Minimum distance | 358.938 km |
| Height difference | -1.473 km |
| Relative speed | 6.749 km/s |
| Angle between velocity vectors | 54° |
| Geographic position | 71.3°S, 78.5°W |
| Height | 780 km |
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