In this paper, the effective parameters in access time of a low earth orbit (LEO) satellite, in a ground user, are studied and outcome of each one is estimated on it. Then the total access time of a single LEO satellite has been maximized. For this purpose, the inclination angle of orbit, to the equator, has been optimized in various satellite altitudes and ground station’s latitudes. The obtained results, once considered along with the power supply issue, give a comprehensive vision for LEO satellite orbit design. Then the satellite access to the sun, as the energy source, has also been evaluated. Simulations have been done by the satellite tool kit (STK) software.