| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 29758 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 24 03:28 | 2023 Sep 24 05:57 |
| Time of closest approach (UTC) | 2023 Jun 06 17:47:12.742 |
| Minimum distance | 2368.064 km |
| Height difference | -3.981 km |
| Relative speed | 14.114 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 49.3°S, 66.9°E |
| Height | 866 km |
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