From 3d1bf719e65e48b7d9a09ec6cf0979ce8af68e9b Mon Sep 17 00:00:00 2001
From: tomrink <rink@ssec.wisc.edu>
Date: Mon, 23 May 2022 15:33:12 -0500
Subject: [PATCH] bug fix

---
 modules/util/viirs_l1b_l2.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/util/viirs_l1b_l2.py b/modules/util/viirs_l1b_l2.py
index e802b361..faf2004b 100644
--- a/modules/util/viirs_l1b_l2.py
+++ b/modules/util/viirs_l1b_l2.py
@@ -106,7 +106,7 @@ def run(l1b_h5f, l2_h5f, l1b_tiles, l2_tiles, factor=2):
 
     num_keep_x_tiles = 5
     i_skip = int(mod_num_x_tiles / num_keep_x_tiles) * mod_tile_width
-    i_start = int(mod_num_pixels / 2) + int((num_keep_x_tiles * 3 * 64) / 2)
+    i_start = int(mod_num_pixels / 2) - int((num_keep_x_tiles * 3 * 64) / 2)
 
     num_keep_y_tiles = 16
     j_skip = int(mod_num_y_tiles / num_keep_y_tiles) * mod_tile_width
-- 
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