| Primary satellite | Secondary satellite |
| Name | HELIOS-2A | FENGYUN 1C DEB |
| Spacetrack catalog number | 28492 | 31166 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 13:45 | 2024 Dec 21 09:55 |
| Time of closest approach (UTC) | 2024 Dec 29 12:29:08.021 |
| Minimum distance | 2.208 km |
| Height difference | 2.102 km |
| Relative speed | 14.797 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 46.3°N, 76.6°E |
| Height | 577 km |
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