| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 2151 Rocket |
| Spacetrack catalog number | 31537 | 21423 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 14:18 | 2024 Dec 23 06:23 |
| Time of closest approach (UTC) | 2024 Dec 23 22:13:45.210 |
| Minimum distance | 4.872 km |
| Height difference | 2.505 km |
| Relative speed | 14.428 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 80.8°S, 153.6°E |
| Height | 641 km |
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