Methods of Analyzing the Error and Rectifying the Calibration of a Solar Tracking System for High-Precision Solar Tracking in Orbit

Reliability is the most critical characteristic of space missions, for example in capturing and tracking moving targets. To this end, two methods are designed to track sunlight using solar remote-sensing instruments (SRSIs). The primary method use offset angles guide mirror closed-loop tracking, while alternative angles, calculated from satellite attitude, vector, mechanical installation correction parameters, open-loop tracking. By comprehensively analyzing error rectifying calibration system, we demonstrate that absolute value azimuth precision less than 0.0121° pitch 0.0037° with method. Correspondingly, they 0.0992° 0.0960° These precisions meet requirements SRSIs. In addition, recalibration due vibration during satellite’s launch may invalidate above methods, leading failure Hence, propose a dedicated injection parameter strategy rectify capture successfully. stable effective results ultraviolet near-infrared spectrum validate SRSI’s high-precision performance. Furthermore, can also be applied all orbital inclinations provide solution