| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 35031 | 39642 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 21 18:35 |
| Time of closest approach (UTC) | 2024 Dec 28 09:23:29.814 |
| Minimum distance | 4.113 km |
| Height difference | -2.501 km |
| Relative speed | 10.801 km/s |
| Angle between velocity vectors | 93° |
| Geographic position | 59.1°S, 152.8°E |
| Height | 795 km |
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