| Primary satellite | Secondary satellite |
| Name | Cosmos 1331 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 13028 | 30752 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 04 10:09 | 2021 Mar 04 06:46 |
| Time of closest approach (UTC) | 2021 Jan 21 07:35:24.409 |
| Minimum distance | 409.418 km |
| Height difference | -1.024 km |
| Relative speed | 3.644 km/s |
| Angle between velocity vectors | 28° |
| Geographic position | 25.8°S, 80.8°E |
| Height | 763 km |
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