update

csst_ifs_sim/csst_ifs_sim.py

@@ -3474,13 +3474,6 @@ class IFSsimulator():
         """
 
         ######
-        # add random pointing error to telescope, the telescope poingt parameter in
-        # fits header have random pointing error
-        ud_ra = np.random.random()   # Choose a random shift in arcsec
-        self.information['ra_pnt0'] = self.information['ra_pnt0']+0.01*ud_ra
-
-        ud_dec = np.random.random()
-        self.information['dec_pnt0'] = self.information['dec_pnt0']+0.01*ud_dec
 
         HeaderTest = 'no'
         sim_ver = str(self.information['sim_ver'])
@@ -3514,6 +3507,14 @@ class IFSsimulator():
                 obsid = 30100000000+obnum  # 3+OBSTYPE+8位曝光编号；
             else:
                 obsid = 30200000000+obnum  # 3+OBSTYPE+8位曝光编号；
+            # #############################
+            # add random pointing error to telescope, the telescope poingt parameter in
+            # fits header have random pointing error
+            ud_ra = np.random.random()   # Choose a random shift in arcsec
+            self.information['ra_pnt0'] = self.information['ra_pnt0']+0.01*ud_ra
+
+            ud_dec = np.random.random()
+            self.information['dec_pnt0'] = self.information['dec_pnt0']+0.01*ud_dec
 
             filename_b = 'CSST_IFS_B_'+self.source+'_'+exp_start_str + \
                 '_'+exp_end_str+'_'+str(obsid)+'_B_L0_V'+sim_ver