| Primary satellite | Secondary satellite |
| Name | Cosmos 1606 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 15370 | 31650 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 17:56 | 2023 Jul 25 05:12 |
| Time of closest approach (UTC) | 2023 Jun 10 07:43:53.618 |
| Minimum distance | 3107.534 km |
| Height difference | -111.050 km |
| Relative speed | 15.151 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 19.5°N, 77.6°W |
| Height | 623 km |
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