| Primary satellite | Secondary satellite |
| Name | Cosmos 1331 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 13028 | 31834 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 06 08:53 | 2021 Mar 06 16:10 |
| Time of closest approach (UTC) | 2021 Jan 20 09:20:10.752 |
| Minimum distance | 10.463 km |
| Height difference | 3.467 km |
| Relative speed | 13.635 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 73.9°N, 50.5°W |
| Height | 789 km |
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