diff --git a/modules/util/geos_nav.py b/modules/util/geos_nav.py
index a23aa93b828ba2ebc26f13eb68e72f02633f2674..a7217e8f9fdb99e6339fbce12275278f1e56ea02 100644
--- a/modules/util/geos_nav.py
+++ b/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