diff --git a/src/halodrops/pipeline.py b/src/halodrops/pipeline.py
index 59a3c20..651cf3c 100644
--- a/src/halodrops/pipeline.py
+++ b/src/halodrops/pipeline.py
@@ -273,7 +273,6 @@ def iterate_Sonde_method_over_dict_of_Sondes_objects(
 
 
 def sondes_to_gridded(sondes: dict, config: configparser.ConfigParser):
-    print(sondes)
     gridded = Gridded(sondes)
     gridded.concat_sondes()
     return gridded
diff --git a/src/halodrops/processor.py b/src/halodrops/processor.py
index 841d404..cfc02f2 100644
--- a/src/halodrops/processor.py
+++ b/src/halodrops/processor.py
@@ -1088,7 +1088,7 @@ def concat_sondes(self):
         """
         function to concatenate all sondes using the combination of all measurement times and launch times
         """
-        list_of_l2_ds = [sonde._interim_l3_ds for sonde in self.sondes.values()]
+        list_of_l2_ds = [sonde._prep_l3_ds for sonde in self.sondes.values()]
         combined = xr.combine_by_coords(list_of_l2_ds)
         object.__setattr__(self, "_interim_l3_ds", combined)
         return self