| Primary satellite | Secondary satellite |
| Name | Cosmos 1025 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 10974 | 38714 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 17:18 | 2021 Jan 16 10:31 |
| Time of closest approach (UTC) | 2020 Dec 04 08:29:21.883 |
| Minimum distance | 6.051 km |
| Height difference | -2.378 km |
| Relative speed | 15.194 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 0.9°N, 28.8°E |
| Height | 605 km |
|