| Primary satellite | Secondary satellite |
| Name | Cosmos 2218 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 22208 | 30515 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 16 22:58 | 2021 Apr 16 03:54 |
| Time of closest approach (UTC) | 2021 Mar 05 15:35:35.612 |
| Minimum distance | 17.480 km |
| Height difference | -4.137 km |
| Relative speed | 6.440 km/s |
| Angle between velocity vectors | 52° |
| Geographic position | 71.8°S, 101.9°W |
| Height | 988 km |
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