| Primary satellite | Secondary satellite |
| Name | Cosmos 2154 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 21667 | 40696 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 06 13:45 | 2023 Nov 08 18:10 |
| Time of closest approach (UTC) | 2023 Oct 05 04:26:53.069 |
| Minimum distance | 2.710 km |
| Height difference | -0.391 km |
| Relative speed | 14.692 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 49.2°S, 7.0°E |
| Height | 984 km |
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