| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 30439 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 30 02:00 | 2023 Sep 29 12:26 |
| Time of closest approach (UTC) | 2023 Jun 05 22:30:33.914 |
| Minimum distance | 864.057 km |
| Height difference | 1.788 km |
| Relative speed | 14.559 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 70.5°N, 100.4°W |
| Height | 852 km |
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