diff --git a/modules/icing/pirep_goes.py b/modules/icing/pirep_goes.py
index d1a45c30a89b518876d1f84e7b9d46c05fb95ab9..e816e04fbdca7fab981e887cba045dcfb963422c 100644
--- a/modules/icing/pirep_goes.py
+++ b/modules/icing/pirep_goes.py
@@ -218,12 +218,13 @@ def run(pirep_dct, outfile=None, outfile_l1b=None, dt_str_start=None, dt_str_end
         dto.replace(tzinfo=timezone.utc)
         t_end = dto.timestamp()
 
-    nav = GEOSNavigation(sub_lon=-75.0, CFAC=5.6E-05, COFF=-0.101332, LFAC=-5.6E-05, LOFF=0.128212, num_elems=2500, num_lines=1500)
+    #nav = GEOSNavigation(sub_lon=-75.0, CFAC=5.6E-05, COFF=-0.101332, LFAC=-5.6E-05, LOFF=0.128212, num_elems=2500, num_lines=1500)
 
     lon_s = np.zeros(1)
     lat_s = np.zeros(1)
     last_clvr_file = None
     last_h5f = None
+    nav = None
 
     lon_c = []
     lat_c = []
@@ -251,6 +252,7 @@ def run(pirep_dct, outfile=None, outfile_l1b=None, dt_str_start=None, dt_str_end
         if clvr_file != last_clvr_file:
             try:
                 h5f = h5py.File(clvr_file, 'r')
+                nav = clvr_ds.get_navigation(h5f)
             except Exception:
                 if h5f is not None:
                     h5f.close()