diff --git a/contrib/stack/topsStack/fetchOrbit.py b/contrib/stack/topsStack/fetchOrbit.py
index afd558a..6176750 100755
--- a/contrib/stack/topsStack/fetchOrbit.py
+++ b/contrib/stack/topsStack/fetchOrbit.py
@@ -147,7 +147,7 @@ if __name__ == '__main__':
         oType = spec[0]
 
         if oType == 'precise':
-            end_date = fileTS + datetime.timedelta(days=20)
+            end_date = fileTS + datetime.timedelta(days=19)
         elif oType == 'restituted':
             end_date = fileTS
         else: