| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 30138 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 17 16:01 | 2025 Nov 17 10:09 |
| Time of closest approach (UTC) | 2025 Oct 14 16:32:03.087 |
| Minimum distance | 12.856 km |
| Height difference | -0.389 km |
| Relative speed | 5.683 km/s |
| Angle between velocity vectors | 45° |
| Geographic position | 50.9°N, 99.0°W |
| Height | 850 km |
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