| Primary satellite | Secondary satellite |
| Name | Cosmos 1697 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 16182 | 29832 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 21:31 | 2021 Mar 08 12:29 |
| Time of closest approach (UTC) | 2021 Jan 17 17:58:47.912 |
| Minimum distance | 128.536 km |
| Height difference | 5.782 km |
| Relative speed | 13.417 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 70.3°N, 176.7°E |
| Height | 855 km |
|