| Primary satellite | Secondary satellite |
| Name | STRAND 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 39090 | 33639 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 01 09:54 | 2021 Mar 01 10:53 |
| Time of closest approach (UTC) | 2021 Jan 21 17:46:48.137 |
| Minimum distance | 17.955 km |
| Height difference | 0.950 km |
| Relative speed | 13.778 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 67.6°N, 40.3°E |
| Height | 789 km |
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