| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1844 |
| Spacetrack catalog number | 31357 | 17973 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:11 | 2024 Dec 23 02:54 |
| Time of closest approach (UTC) | 2024 Dec 25 23:19:29.959 |
| Minimum distance | 0.749 km |
| Height difference | 0.749 km |
| Relative speed | 14.447 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 62.2°N, 66.1°W |
| Height | 875 km |
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