| Primary satellite | Secondary satellite |
| Name | Kosmos-2040 | FENGYUN 1C DEB |
| Spacetrack catalog number | 20234 | 37421 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:45 | 2024 Dec 20 04:59 |
| Time of closest approach (UTC) | 2024 Dec 24 06:13:05.318 |
| Minimum distance | 1.154 km |
| Height difference | -0.873 km |
| Relative speed | 12.267 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 80.5°N, 96.2°E |
| Height | 1421 km |
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