READ TERR 1 2
! PC data
174301.730	224.808	-294.207	3.679845e-02	9.766016e-03	-9.766016e-03
175143.003	582.021	-616.465	2.096744e-02	4.860929e-03	-4.860929e-03
179807.844	163.815	-96.945	3.697789e-02	1.783255e-02	-1.353616e-02