diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index f8dadf1346fec08aa67f43a35668d5911c76ed25..dc76b557cea0c0b320f49e22a32cf919f216a5f1 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -104,7 +104,7 @@ def run(l1b_h5f, l2_h5f, l1b_tiles, l2_tiles, factor=2):
     mod_data = np.stack(l1b_grd_s)
     img_data = np.stack(l2_grd_s)
 
-    num_keep_x_tiles = 5
+    num_keep_x_tiles = 3
     i_skip = 3 * mod_tile_width
     i_start = int(mod_num_pixels / 2) - int((num_keep_x_tiles * 3 * 64) / 2)