| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Geosat |
| Spacetrack catalog number | 35789 | 15595 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 00:54 |
| Time of closest approach (UTC) | 2024 Dec 24 08:54:43.746 |
| Minimum distance | 3.032 km |
| Height difference | -1.594 km |
| Relative speed | 14.934 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 62.1°N, 133.2°E |
| Height | 774 km |
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