diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index f1dd82fa53f63c11413607eda1d1458c8d464701..c49836400c064500173cfd0d25a1c3854b25957e 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -64,9 +64,9 @@ def keep_tile(param_s, tile):
     total = np.sum(keep)
     if total == 0:
         return False
-    keep = np.where(keep, np.invert(np.logical_and(0.05 < grd_k, grd_k < 0.95)), False)
 
-    if np.sum(keep)/total > 0.5:
+    keep = np.where(keep, np.invert(np.logical_and(0.05 < grd_k, grd_k < 0.95)), False)
+    if np.sum(keep)/total > 0.6:
         return True
     else:
         return False