| Primary satellite | Secondary satellite |
| Name | Cosmos 2237 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 22566 | 30662 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 08 12:15 | 2021 Mar 08 17:44 |
| Time of closest approach (UTC) | 2021 Jan 18 21:54:00.908 |
| Minimum distance | 19.535 km |
| Height difference | -1.002 km |
| Relative speed | 14.798 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 16.6°S, 67.7°W |
| Height | 851 km |
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