Orbit computation system for “IRS”

Mission Analysis and Planning System for Korea Multipurpose Satellite-I

“…The orbit prediction module (OPM) has been tested by comparing the results with the Indian Remote Sensing Satellite (IRS) propagator. IRS is a low earth orbit remote sensing satellite operated by ISTRAC of India [10]. The difference between the OPM propagator and IRS propagator came out to be less than 1 m for the semi-major axis and on the order of 10 -5 degrees for the inclination after seven days.…”