| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 773 Rocket |
| Spacetrack catalog number | 35462 | 8344 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 22 18:00 |
| Time of closest approach (UTC) | 2024 Dec 29 21:22:36.651 |
| Minimum distance | 2.117 km |
| Height difference | 0.865 km |
| Relative speed | 9.932 km/s |
| Angle between velocity vectors | 83° |
| Geographic position | 68.5°S, 14.3°W |
| Height | 784 km |
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