| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 | FENGYUN 1C DEB |
| Spacetrack catalog number | 23087 | 30151 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 03 21:42 | 2023 Oct 04 01:25 |
| Time of closest approach (UTC) | 2023 Jun 07 17:43:54.212 |
| Minimum distance | 561.697 km |
| Height difference | -4.135 km |
| Relative speed | 8.851 km/s |
| Angle between velocity vectors | 73° |
| Geographic position | 63.5°S, 179.8°W |
| Height | 875 km |
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