A satellite of mass $500$ kg is on a circular orbit $500$ km above the earth's surface. RE$=6\mathrm{.}38*10^6$m$,$ ME$=5\mathrm{.}97*10^24$kg$,$ and G$=6\mathrm{.}677*10^-11$Nm$^2/$kg$^2.$ Find the period of the satellite using T$=(2$pirorb$)/$vorb