| Primary satellite | Secondary satellite |
| Name | DOVE 4 | FENGYUN 1C DEB |
| Spacetrack catalog number | 39430 | 29865 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 04:39 | 2021 Mar 04 17:37 |
| Time of closest approach (UTC) | 2021 Jan 23 18:10:22.509 |
| Minimum distance | 3.051 km |
| Height difference | -1.504 km |
| Relative speed | 14.162 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 60.6°N, 94.7°W |
| Height | 797 km |
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