A helper routine that converts from orbit number to date and time for the purpose of reading KP data. :Params: begin_orbit : in, required, type=integer variable holding the beginning orbit number to convert end_orbit : in, required, type=integer variable holding the ending orbit number to convert begin_time : out, required, type=integer variable returned holding the beginning time equivalent to the start orbit end_time : out, required, type=integer variable returned holding the end time equivalent to the end orbit :Keywords: