Titan orbits Saturn once every 15.9 days in a nearly circular path of radius 1.22×106km. Using these data, determine the numerical value of the constant k (in SI units) that relates T2 and a3 for satellites of Saturn.
(a) 2.6×10−17s2m−3
(b) 1.0×10−12s2m−3
(c) 1.0×10−15s2m−3
(d) 1.8×10−18s2m−3