| Primary satellite | Secondary satellite |
| Name | Cosmos 1937 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 19039 | 30703 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 18 01:40 | 2021 Jan 17 19:24 |
| Time of closest approach (UTC) | 2020 Dec 01 15:48:13.835 |
| Minimum distance | 110.956 km |
| Height difference | -0.845 km |
| Relative speed | 14.124 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 72.8°N, 62.4°W |
| Height | 780 km |
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