| Primary satellite | Secondary satellite |
| Name | Cosmos 2142 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 21231 | 30299 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:58 | 2024 Dec 23 03:37 |
| Time of closest approach (UTC) | 2024 Dec 29 22:07:26.638 |
| Minimum distance | 4.744 km |
| Height difference | 1.296 km |
| Relative speed | 14.510 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 79.9°N, 65.3°W |
| Height | 965 km |
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