| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 842 Rocket |
| Spacetrack catalog number | 30056 | 9044 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 23 06:41 |
| Time of closest approach (UTC) | 2024 Dec 26 03:18:06.943 |
| Minimum distance | 4.182 km |
| Height difference | -3.911 km |
| Relative speed | 14.740 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 8.2°S, 82.0°E |
| Height | 977 km |
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