diff --git a/modules/util/viirs.py b/modules/util/viirs.py
index b4d66cbc78dd3423ac5abab6345383bdfd00aadb..6d500b35404e280c222ce24afeecd89da9f79fe0 100644
--- a/modules/util/viirs.py
+++ b/modules/util/viirs.py
@@ -16,7 +16,7 @@ def run_all(directory):
         if not p.is_dir():
             continue
         cnt += 1
-        mod_files = glob.glob(directory+p.name+'/'+'*.uwssec.nc')
+        mod_files = glob.glob(directory+p.name+'/'+'VNP02MOD*.uwssec.nc')
 
         mod_tiles = []
         img_tiles = []
@@ -112,7 +112,7 @@ def run_mean_std(directory):
             if idx % 8 == 0:
                 h5f = h5py.File(mfile, 'r')
                 for param in mod_res_params:
-                    gvals = get_grid_values_all(h5f, param, range_name=None, stride=10)
+                    gvals = get_grid_values_all(h5f, 'observation_data/'+param, range_name=None, stride=10)
                     data_dct[param].append(gvals.flatten())
                 print(mfile)
                 h5f.close()