READ TERR 1 2
! PC data
74363.056	1406.811	-1092.967	8.283405e-03	2.169448e-03	-2.169448e-03
83564.293	7512.251	-4532.762	5.771743e-03	1.289717e-03	-1.289717e-03
329514.521	5471.461	-22821.717	1.450236e-03	7.762483e-04	-5.892268e-04