| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 13121 | 31281 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 25 21:29 | 2023 Mar 23 22:03 |
| Time of closest approach (UTC) | 2023 Feb 02 18:37:32.108 |
| Minimum distance | 122.291 km |
| Height difference | 32.619 km |
| Relative speed | 15.179 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 66.4°S, 63.6°E |
| Height | 564 km |
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