| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Envisat |
| Spacetrack catalog number | 31444 | 27386 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 13:31 | 2024 Dec 22 22:03 |
| Time of closest approach (UTC) | 2024 Dec 25 09:25:29.699 |
| Minimum distance | 2.782 km |
| Height difference | 2.229 km |
| Relative speed | 5.932 km/s |
| Angle between velocity vectors | 47° |
| Geographic position | 80.6°S, 140.9°E |
| Height | 789 km |
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