VISIBILITY INTERVALS BETWEEN TWO SATELLITES ORBITS UNDER J2-GRAVITY AND DRAG FORCE

Authors

AHMED W.N., Departments of 1Applied Mathematics, Physics Division, National Research Centre.
AWAD M.E., Astronomy, Faculty of science, Cairo University.
HASSAN I.A., Astronomy and Meteorology, Faculty of science, Al-Azhar University.
AMMAR M.K., Mathematic, Faculty of science, Helwan University.
AMIN M. R., Departments of 1Applied Mathematics, Physics Division, National Research Centre.

Corresponding Author

W.N., AHMED

Document Type

Original Article

Subject Areas

Mathematics, Statistics, Computer Science, Physics and Astronomy

Keywords

Visibility function – line of site-; rise and set times-Earth oblateness- Drag force

Abstract

The research introduces a general analytical and computational technique for satellite-to-satellite visibility. The effect of earth’s oblateness and drag force were taken into account.The Visibility function in terms of the orbital elements of the two satellites and the time were derived. The rise and set periods of the satellites are determined through the sign of the visibility function. Numerical examples were worked for some satellites.

How to Cite This Article

W.N., AHMED; M.E., AWAD; I.A., HASSAN; M.K., AMMAR; and M. R., AMIN (2015) "VISIBILITY INTERVALS BETWEEN TWO SATELLITES ORBITS UNDER J2-GRAVITY AND DRAG FORCE," Al-Azhar Bulletin of Science: Vol. 26: Iss. 2, Article 6.
DOI: https://doi.org/10.21608/absb.2015.22634