fix some cf issues

modules/util/viirs_l1b_l2.py

@@ -223,7 +223,12 @@ def scan(directory):
 
         for idx, file in enumerate(files):
             h5f = h5py.File(file, 'r')
-            solzen = get_grid_values_all(h5f, 'solar_zenith_angle')
+            try:
+                solzen = get_grid_values_all(h5f, 'solar_zenith_angle')
+            except Exception as e:
+                print(e)
+                h5f.close()
+                continue
             if is_night(solzen):
                 print(file)
             h5f.close()