| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 | FENGYUN 1C DEB |
| Spacetrack catalog number | 23087 | 30368 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 29 07:20 | 2023 Sep 29 07:56 |
| Time of closest approach (UTC) | 2023 Jun 05 23:32:26.375 |
| Minimum distance | 130.925 km |
| Height difference | -4.742 km |
| Relative speed | 14.746 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 47.7°S, 146.7°W |
| Height | 872 km |
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