| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23088 | 30357 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 16:16 | 2025 Nov 16 12:35 |
| Time of closest approach (UTC) | 2025 Oct 14 02:52:56.854 |
| Minimum distance | 47.573 km |
| Height difference | 0.202 km |
| Relative speed | 8.283 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 64.0°N, 87.9°E |
| Height | 853 km |
|