| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 15766 | 30539 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 15 04:40 | 2025 Jun 16 09:14 |
| Time of closest approach (UTC) | 2025 May 13 18:02:38.408 |
| Minimum distance | 71.233 km |
| Height difference | -2.959 km |
| Relative speed | 14.813 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 81.0°N, 107.1°W |
| Height | 764 km |
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