| Primary satellite | Secondary satellite |
| Name | Cosmos 1125 Rocket | CZ-2D DEB |
| Spacetrack catalog number | 11511 | 47975 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 14 06:50 | 2025 Nov 14 02:41 |
| Time of closest approach (UTC) | 2025 Oct 13 23:58:45.886 |
| Minimum distance | 43.851 km |
| Height difference | 0.403 km |
| Relative speed | 13.980 km/s |
| Angle between velocity vectors | 139° |
| Geographic position | 73.1°N, 170.1°E |
| Height | 779 km |
|