Analytical Model for the Analysis of Onboard Data of Solar Panel Sun Sensor (SPSS): Chandrayaan-1

摘要

This paper describes the mathematical formulation to develop an analytical model of solar panel sun sensor onboard Chandrayaan-1. A MATLAB code was developed to generate the plots which show the characteristics of the sensors. Sensor hardware dependent behaviors like slope variations over cross field of view and blocking of input sun signal due to the aperture window are also incorporated in MATLAB model. The code was validated against the lab simulated sensor outputs and then the model was further used to analyze the onboard data of both main and redundant SPSS.rnThis paper presents the onboard observations and its detailed analysis. Suggestions for future are made.