| Primary satellite | Secondary satellite |
| Name | Cosmos 407 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 5175 | 31947 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Feb 24 18:47 | 2021 Feb 24 01:04 |
| Time of closest approach (UTC) | 2021 Jan 21 23:57:10.959 |
| Minimum distance | 9.020 km |
| Height difference | 2.522 km |
| Relative speed | 14.903 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 45.3°N, 7.9°W |
| Height | 762 km |
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