| Primary satellite | Secondary satellite |
| Name | Cosmos 1934 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 18986 | 30523 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 20:31 | 2021 Jan 16 20:26 |
| Time of closest approach (UTC) | 2020 Dec 04 15:52:55.116 |
| Minimum distance | 3.390 km |
| Height difference | 2.097 km |
| Relative speed | 14.670 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 53.9°S, 140.4°W |
| Height | 967 km |
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