| Primary satellite | Secondary satellite |
| Name | Cosmos 2218 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 22208 | 31353 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 16 22:58 | 2021 Apr 13 19:22 |
| Time of closest approach (UTC) | 2021 Mar 06 14:37:30.624 |
| Minimum distance | 5.993 km |
| Height difference | -2.637 km |
| Relative speed | 14.598 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 38.5°S, 63.2°E |
| Height | 1006 km |
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