Study of the global alignment for the DAMPE detector

The Dark Matter Particle Explorer (DAMPE) is designed as a high energy particle detector for probing cosmic-rays and $\gamma-$rays in wide range. trajectory of the incident mainly measured by Silicon-Tungsten tracKer-converter (STK) sub-detector, which heavily depends on precise internal alignment correction well accuracy global coordinate system. In this work, we carried out method to validate potential displacement these sub-detectors, particularly demonstrated that track reconstruction STK can satisfy required objectives means comparing flight data simulations.