| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17973 | 31056 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 26 01:26 | 2023 Sep 23 22:35 |
| Time of closest approach (UTC) | 2023 Jun 11 06:55:31.884 |
| Minimum distance | 7.816 km |
| Height difference | 0.765 km |
| Relative speed | 14.804 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 8.5°N, 161.6°E |
| Height | 845 km |
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