| Primary satellite | Secondary satellite |
| Name | Cosmos 1697 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 16182 | 29857 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 21:31 | 2021 Mar 08 10:45 |
| Time of closest approach (UTC) | 2021 Jan 19 17:24:03.123 |
| Minimum distance | 174.142 km |
| Height difference | -1.205 km |
| Relative speed | 9.348 km/s |
| Angle between velocity vectors | 78° |
| Geographic position | 66.4°N, 157.6°E |
| Height | 854 km |
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