add inverse transforms

modules/util/geos_nav.py

@@ -164,7 +164,7 @@ class GEOSNavigation:
         ll = np.where(np.isnan(theta), -1, ll)
         return cc, ll
 
-    def lc_to_earth_s(self, cc, ll):
+    def lc_to_earth(self, cc, ll):
         x = cc * self.CFAC + self.COFF
         y = ll * self.LFAC + self.LOFF