correct typo in Pointing.py

.gitignore

+build/*
+CSSTSim.egg-info/*
+dist/*
+*.pyc
+*.so
+*disperse.c
+*interp.c
+!*libshao.so
\ No newline at end of file

ObservationSim/Config/Pointing.py

@@ -33,7 +33,7 @@ class Pointing(object):
             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])