| Primary satellite | Secondary satellite |
| Name | Cosmos 1656 | FENGYUN 1C DEB |
| Spacetrack catalog number | 15755 | 30736 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 28 13:56 | 2023 Mar 28 07:41 |
| Time of closest approach (UTC) | 2023 Jan 30 04:21:42.122 |
| Minimum distance | 380.355 km |
| Height difference | 13.396 km |
| Relative speed | 14.744 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 44.8°S, 143.2°E |
| Height | 861 km |
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