planet, code

The code of a sun is given by four numbers.  Our Sun, for instance, is 17-48-87-90.  The code for a planet is formed by adding a fifth number, found by counting the planets out from the sun.  Mercury is 17-48-87-90-01.  Venus is 17-48-87-90-02. Earth is 17-48-87-90-03.  The Sector 17 headquarters is on Yband 4, whose code is 17-00-00-00-04.