| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1503 |
| Spacetrack catalog number | 36273 | 14401 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 17 18:45 | 2024 Dec 23 03:27 |
| Time of closest approach (UTC) | 2024 Dec 23 21:40:25.932 |
| Minimum distance | 3.910 km |
| Height difference | -3.848 km |
| Relative speed | 14.903 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 43.4°S, 53.5°W |
| Height | 794 km |
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