diff --git a/csst_mci_sim/csst_mci_sim.py b/csst_mci_sim/csst_mci_sim.py
index 5cd11b44c369d360907633fd2a1bbe291d915e97..a033439d2cccb0e4f3470e892aed3eba76448161 100644
--- a/csst_mci_sim/csst_mci_sim.py
+++ b/csst_mci_sim/csst_mci_sim.py
@@ -1251,7 +1251,36 @@ class MCIsimulator():
         :type opts: OptionParser instance
         """
         self.configfile = configfile
-        self.section = 'TEST'       #####simulation section;     
+        self.section = 'TEST'       #####simulation section;   
+        self.information = MCIinstrumentModel.MCIinformation()
+        
+        #update settings with defaults
+        self.information.update(dict(quadrant=int(0),
+                                     ccdx=int(0),
+                                     ccdy=int(0),                                
+                                     ccdxgap=1.643,
+                                     ccdygap=8.116,
+                                     xsize=2000,
+                                     ysize=2000,
+                                     fullwellcapacity=90000,
+                                     pixel_size=0.05,
+                                     dark=0.001,
+                                     exptime=300.0,
+                                     readouttime=4.,
+                                     rdose=8.0e9,                                  
+                                     ghostCutoff=22.0,
+                                     ghostRatio=5.e-5,
+                                     coveringfraction=0.1,    #CR: 
+                                      cosmicraylengths =self.information['dir_path']+'MCI_inputData/data/cdf_cr_length.dat',
+                                      cosmicraydistance=self.information['dir_path']+'MCI_inputData/data/cdf_cr_total.dat',                                
+                                      parallelTrapfile =self.information['dir_path']+'MCI_inputData/data/cdm_euclid_parallel.dat',
+                                      serialTrapfile   =self.information['dir_path']+'MCI_inputData/data/cdm_euclid_serial.dat',
+                                     mode='same'))
+            
+            
+        
+        self.log.info('Read in the configuration files and created an empty array')
+        
         
         
 ###############################################################################
@@ -1479,7 +1508,7 @@ class MCIsimulator():
         self.log.info('The exposure order is  %i ' % simnumber )
         
         #load instrument model, these values are also stored in the FITS header
-        self.information = MCIinstrumentModel.MCIinformation()
+        
         self.information['G_filters']=["F275W",  "F280N","NUV",   "WU",   "CBU",   "F343N",  "u",      "F373N", "F395N",  "F336W"]
         self.information['R_filters']=["F487N", "F502N", "CBV",   "r",    "F656N", "F658N",  "F467M",  "F555W", "F606W",  "F673N"]        
         self.information['I_filters']=["z",      "y",    "F815N", "CBI",  "F925N", "F960M",  "F968N",  "F845M" ,"F850LP" ,"F814W"]
@@ -1528,32 +1557,7 @@ class MCIsimulator():
             os.mkdir(self.result_path+'/sky_Data')
             os.mkdir(self.result_path+'/PSF_Data')
 
-        #update settings with defaults
-        self.information.update(dict(quadrant=int(0),
-                                     ccdx=int(0),
-                                     ccdy=int(0),                                
-                                     ccdxgap=1.643,
-                                     ccdygap=8.116,
-                                     xsize=2000,
-                                     ysize=2000,
-                                     fullwellcapacity=90000,
-                                     pixel_size=0.05,
-                                     dark=0.001,
-                                     exptime=300.0,
-                                     readouttime=4.,
-                                     rdose=8.0e9,                                  
-                                     ghostCutoff=22.0,
-                                     ghostRatio=5.e-5,
-                                     coveringfraction=0.1,    #CR: 
-                                     cosmicraylengths =FOLDER+'MCI_inputData/data/cdf_cr_length.dat',
-                                     cosmicraydistance=FOLDER+'MCI_inputData/data/cdf_cr_total.dat',                                
-                                     parallelTrapfile =FOLDER+'MCI_inputData/data/cdm_euclid_parallel.dat',
-                                     serialTrapfile   =FOLDER+'MCI_inputData/data/cdm_euclid_serial.dat',
-                                     mode='same'))
-            
-            
-        
-        self.log.info('Read in the configuration files and created an empty array')
+
         
         return