| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | FENGYUN 1C DEB |
| Spacetrack catalog number | 15766 | 30121 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 15 04:40 | 2025 Jun 16 07:17 |
| Time of closest approach (UTC) | 2025 May 17 17:37:22.009 |
| Minimum distance | 48.035 km |
| Height difference | 4.852 km |
| Relative speed | 14.867 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 62.7°S, 43.1°W |
| Height | 776 km |
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