| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 29877 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 24 03:28 | 2023 Sep 24 21:07 |
| Time of closest approach (UTC) | 2023 Jun 06 04:25:36.061 |
| Minimum distance | 529.446 km |
| Height difference | -4.060 km |
| Relative speed | 14.353 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 69.3°S, 0.6°E |
| Height | 871 km |
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