READ TERR 1 2
! PC data
49732.882	474.320	-561.204	1.863158e-02	5.074644e-03	-5.074644e-03
50424.921	226.076	-217.719	4.515596e-02	1.177803e-02	-1.177803e-02
51058.394	485.194	-407.397	3.712233e-02	7.551964e-03	-7.551964e-03