diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index 828ae8bfa72e5d9f3218d9540b7bd9676f13cbab..aa965a928b44d15aa742328c0772b49d1b486893 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -220,7 +220,9 @@ def scan(directory):
         if not p.is_dir():
             continue
         files = glob.glob(directory + p.name+'/'+'clavrx_snpp_viirs*.uwssec*.h5')
+        num_files = len(files)
 
+        num_keep = 0
         for idx, file in enumerate(files):
             h5f = h5py.File(file, 'r')
             try:
@@ -231,7 +233,9 @@ def scan(directory):
                 continue
 
             if is_night(solzen):
+                num_keep += 1
                 print(file)
+            print(num_files, num_keep)
 
             h5f.close()