| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 46995 | 12661 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Dec 03 20:21 | 2023 Dec 06 05:47 |
| Time of closest approach (UTC) | 2023 Sep 26 12:34:35.075 |
| Minimum distance | 839.881 km |
| Height difference | 21.185 km |
| Relative speed | 12.900 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 80.9°N, 107.4°E |
| Height | 904 km |
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