Calculation the affects of the sun, moon and satellite position on the perturbation forces of the low retrograde orbits

  • Abdrahman Hussien Department of Astronomy and Space - College of science – University of Baghdad
  • Magid M. Jarad Department of Physics - College of science – University of Anbar
  • Farid M. Mahdi Department of Physics - College of science – University of Anbar
Keywords: Retrograde Satellite orbit, perturbation, atmospheric drag

Abstract

The actual position and velocity of the sun and the  moon were calculate through one year , and the satellite position and velocity components (x,y,z, vx, vy, vz) were calculate as well as the momentum component at inclination (116.5?) , argument of perigee (30?), longitude  node angle (40?), eccentricity (0.01), for deferent perigee height (200,300,..,1000 km). The acceleration of perturbations  which were calculated in this work are the sun and the moon attraction on the satellite, the solar radiation pressure, the atmospheric drag as well as the earth oblatness. The result show that the perturbation forces of atmospheric drag acceleration is effect by altitude and the sun, moon attraction do not depend on distance from satellite but depend on the angle between (sun – earth – satellite) and (moon - earth – satellite). the earth oblatness acceleration do not depend on altitude of satellite and time, but depend on the position on its orbit and orbital inclination. The solar radiation pressure acceleration is depend on angle (sun - earth – satellite) and the minimum value at (180?).      

Published
2019-05-01
How to Cite
Hussien, A., Jarad, M. M., & Mahdi, F. M. (2019). Calculation the affects of the sun, moon and satellite position on the perturbation forces of the low retrograde orbits. Iraqi Journal of Science, 60(4), 891-903. Retrieved from https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/734
Section
Astronomy and Space