diff --git a/da/stilt/obspack.py b/da/stilt/obspack.py
index 2ef637f88d755f6761ca6684caf9d68bd93b40f0..80db702d2bf4c1abaa9792a2a2dfe6df88cafb7b 100755
--- a/da/stilt/obspack.py
+++ b/da/stilt/obspack.py
@@ -421,48 +421,6 @@ class ObsPackObservations(Observations):
         eventids=array(eventids)
         logging.info('eventids %s'%eventids)
 
-        paired_flag=zeros((len(self.datalist)),)
-        paired_flag[:]=False
-        filtered_obs=zeros((len(self.datalist)),)
-        counter=1.
-        counter2=1.
-        for i,obs in enumerate(self.datalist):
-            psite=obs.code
-            pday=obs.xdate.day
-            pobs=obs.obs
-            if i >0:
-                if pday == pday_old and psite == psite_old
-                    paired_flag[i]= True
-                    paired_flag[i-1]= True
-                    if pobs -pobs_prev <1.0:
-                        pobs_avr=(pobs+pobs_avr)
-                        counter = counter+1.
-                        counter2 = counter2+1.
-                        filtered_obs[i] =0.
-                    else:
-                        filtered_obs[i]=0.
-                        counter2 = counter2+1.
-                else:
-                    pday_prev= pday
-                    psite_prev = psite
-                    pobs_prev = pobs
-                    paired_flag[i]=False
-                    filtered_obs[i-counter2]=pobs_avr/counter
-                    counter=1.
-                    counter2=1.
-            else:
-                pday_prev= pday            
-                psite_prev = psite
-                pobs_prev = pobs
-                paired_flag[i] = False
-                pobs_avr = pobs
-                filtered_obs[i] = pobs
-      
-        logging.info("Boolean list paired observations: %s"%paired_flag)
-
-        logging.info("Obs list paired observations: %s"%filtered_obs)
-
-
         for i,obs in enumerate(self.datalist):
             obs.mdm = 1000.0  # default is very high model-data-mismatch, until explicitly set by script
             obs.flag = 99  # default is do-not-use , until explicitly set by script
@@ -550,7 +508,6 @@ class ObsPackObservations(Observations):
 
         self.datalist = [self.datalist[k] for k in do_simulate]
         logging.info("After multple filters observations list now holds %d values" % len(self.datalist))
-
         # Add site_info dictionary to the Observations object for future use
 
         self.site_info = site_info