| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 30288 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 22:08 | 2023 Sep 30 23:50 |
| Time of closest approach (UTC) | 2023 Jun 14 21:07:56.494 |
| Minimum distance | 1254.692 km |
| Height difference | -4.654 km |
| Relative speed | 14.620 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 70.7°S, 45.7°E |
| Height | 871 km |
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