| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 | FENGYUN 1C DEB |
| Spacetrack catalog number | 23087 | 31332 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 03 21:42 | 2023 Oct 03 17:19 |
| Time of closest approach (UTC) | 2023 Jun 05 20:39:37.434 |
| Minimum distance | 3440.595 km |
| Height difference | -11.588 km |
| Relative speed | 8.905 km/s |
| Angle between velocity vectors | 73° |
| Geographic position | 50.4°N, 56.7°W |
| Height | 850 km |
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