| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1383 |
| Spacetrack catalog number | 38157 | 13301 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:07 | 2024 Dec 23 04:26 |
| Time of closest approach (UTC) | 2024 Dec 28 03:12:49.143 |
| Minimum distance | 1.486 km |
| Height difference | -1.154 km |
| Relative speed | 14.614 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 51.8°S, 106.7°W |
| Height | 1006 km |
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