Assessment of the Orbital Elements of RazakSAT using the Keplerian Orbit Model and STK

Abstract

Attitude determination system (ADS) is one of the satellite sub-systems that functions to measure the vector of inertial reference and compute the orientation of the satellite relative to the Earth. However, any misalignments or disturbances on the ADS can affect the orientation of the satellite in terms of the orbital position. This paper focuses on determining the attitude of a satellite in order to determine the orbital position by using RazakSAT data in NEqo orbit. The Keplerian orbit model and Satellite Tools Kit (STK) software is implemented as an orbital model and compared with the NEqO of the RazakSAT data. The results show STK is more accurate. The results show that the STK software method outperforms the Keplerian orbit model in terms of determining the satellite's orbital position.