| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 | FENGYUN 1C DEB |
| Spacetrack catalog number | 23087 | 31554 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 25 09:57 | 2023 Sep 24 11:00 |
| Time of closest approach (UTC) | 2023 Jun 03 22:45:19.613 |
| Minimum distance | 4488.064 km |
| Height difference | -25.402 km |
| Relative speed | 13.800 km/s |
| Angle between velocity vectors | 136° |
| Geographic position | 47.8°N, 84.5°W |
| Height | 850 km |
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