correct typo in Pointing.py

build/*

CSSTSim.egg-info/*

dist/*

*.pyc

*.so

*disperse.c

*interp.c

!*libshao.so

 No newline at end of file

            self.sat_z = float(columns[8])

            self.sun_x = float(columns[9])

            self.sun_y = float(columns[10])

            self.sun_z = float(columns[1])

            self.sun_z = float(columns[11])

            self.sat_vx = float(columns[15])

            self.sat_vy = float(columns[16])

            self.sat_vz = float(columns[17])