| Primary satellite | Secondary satellite |
| Name | Cosmos 1544 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 14820 | 30898 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 22 00:04 | 2023 Sep 21 16:16 |
| Time of closest approach (UTC) | 2023 Jun 04 02:51:49.644 |
| Minimum distance | 68.364 km |
| Height difference | -13.521 km |
| Relative speed | 15.167 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 19.5°N, 177.8°E |
| Height | 610 km |
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