| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 30829 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Oct 01 22:08 | 2023 Sep 30 18:30 |
| Time of closest approach (UTC) | 2023 Jun 12 00:30:43.515 |
| Minimum distance | 276.272 km |
| Height difference | 8.062 km |
| Relative speed | 14.570 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 64.4°N, 119.4°W |
| Height | 852 km |
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