| Primary satellite | Secondary satellite |
| Name | Cosmos 1655 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 15752 | 31010 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 13:19 | 2021 Jan 22 08:21 |
| Time of closest approach (UTC) | 2020 Nov 30 17:33:01.320 |
| Minimum distance | 3.677 km |
| Height difference | 3.185 km |
| Relative speed | 14.615 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 28.3°N, 125.7°E |
| Height | 1010 km |
|