Ataiwe, Tariq N., Abbas Z. Khalaf, and I H Mohammed. “Satellite Coordinates from Ephemeris Data ”. International Journal of Scientific Research in Civil Engineering 3, no. 4 (July 9, 2019): 15–19. Accessed July 22, 2024. https://ijsrce.com/index.php/home/article/view/IJSRCE193351.