| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Quakesat |
| Spacetrack catalog number | 35462 | 27845 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 23 00:09 |
| Time of closest approach (UTC) | 2024 Dec 27 16:58:48.217 |
| Minimum distance | 1.327 km |
| Height difference | -0.209 km |
| Relative speed | 14.848 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 31.2°S, 21.4°E |
| Height | 817 km |
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