| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | GCOM-C |
| Spacetrack catalog number | 35789 | 43065 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 03:45 |
| Time of closest approach (UTC) | 2024 Dec 23 18:33:03.337 |
| Minimum distance | 3.386 km |
| Height difference | 3.359 km |
| Relative speed | 14.252 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 71.9°S, 83.2°E |
| Height | 825 km |
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