| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17973 | 30167 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 26 01:26 | 2023 Sep 26 13:10 |
| Time of closest approach (UTC) | 2023 Jun 09 18:29:51.998 |
| Minimum distance | 716.569 km |
| Height difference | 19.621 km |
| Relative speed | 14.733 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 4.8°N, 177.4°E |
| Height | 844 km |
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