| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 | FENGYUN 1C DEB |
| Spacetrack catalog number | 23087 | 30336 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 30 08:48 | 2023 Sep 30 01:54 |
| Time of closest approach (UTC) | 2023 Jun 07 12:39:27.359 |
| Minimum distance | 292.018 km |
| Height difference | -2.035 km |
| Relative speed | 9.239 km/s |
| Angle between velocity vectors | 77° |
| Geographic position | 67.5°S, 90.6°W |
| Height | 877 km |
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