diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index f60966184e6044b3192c17f8f45d170236c38a80..194700cc64e0fe5a8871e9c60c94e9c44f096018 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -67,8 +67,8 @@ def keep_tile(param_s, tile):
         return False
     np.where(np.invert(keep), 0, grd_k)
 
-    keep = np.where(keep, np.invert(np.logical_and(0.05 < grd_k, grd_k < 0.95)), False)
-    if np.sum(keep)/total > 0.7:
+    keep = np.where(keep, np.invert(np.logical_and(0.1 < grd_k, grd_k < 0.9)), False)
+    if np.sum(keep)/total > 0.75:
         return True
     else:
         return False