| Primary satellite | Secondary satellite |
| Name | Cosmos 1241 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 12150 | 31696 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 27 19:07 | 2023 Sep 23 13:37 |
| Time of closest approach (UTC) | 2023 Jun 04 05:52:29.869 |
| Minimum distance | 343.586 km |
| Height difference | -15.213 km |
| Relative speed | 13.410 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 62.4°S, 32.6°W |
| Height | 964 km |
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