diff --git a/enpt/io/reader.py b/enpt/io/reader.py
index bef289b0905687abb4fc589171d52e1d99468fa9..7c598145839f5aaaa63c8141dacd23334f21e968 100644
--- a/enpt/io/reader.py
+++ b/enpt/io/reader.py
@@ -17,7 +17,7 @@ class L1B_Reader(object):
         self.cfg = user_inputs
 
     @staticmethod
-    def read_inputdata(root_dir, observation_time: datetime, lon_lat_smpl=(15, 15), nsmile_coef=4):
+    def read_inputdata(root_dir, observation_time: datetime, lon_lat_smpl=(15, 15), nsmile_coef=5):
         # TODO move to init?
         """Read L1B, DEM and spatial reference data.
 
diff --git a/enpt/model/metadata.py b/enpt/model/metadata.py
index 33ea2435a00d510bdba2182e0d37cb0bce63653d..b884eed9ff9643ea3318fcc6115efb5d81fb487d 100644
--- a/enpt/model/metadata.py
+++ b/enpt/model/metadata.py
@@ -63,7 +63,7 @@ class _EnMAP_Metadata_L1B_Detector_SensorGeo(object):
         self.unit = ''  # type: str  # radiometric unit of pixel values
         self.snr = None  # type: np.ndarray  # Signal to noise ratio as computed from radiance data
 
-    def _read_metadata(self, path_xml, detector_label_xml, lon_lat_smpl=(15, 15), nsmile_coef=4):
+    def _read_metadata(self, path_xml, detector_label_xml, lon_lat_smpl=(15, 15), nsmile_coef=5):
         """Read the metadata of a specific EnMAP detector in sensor geometry.
 
         :param path_xml:  file path of the metadata XML file
@@ -215,7 +215,7 @@ class EnMAP_Metadata_L1B_VNIR_SensorGeo(_EnMAP_Metadata_L1B_Detector_SensorGeo):
         self._path_xml = path_metaxml
         self.detector_label = L1B_product_props['xml_detector_label']['VNIR']
 
-    def read_metadata(self, lon_lat_smpl=(15, 15), nsmile_coef=4):
+    def read_metadata(self, lon_lat_smpl=(15, 15), nsmile_coef=5):
         """Read the metadata of the VNIR detector in sensor geometry.
 
         :param lon_lat_smpl:  number if sampling points in lon, lat fields
@@ -243,7 +243,7 @@ class EnMAP_Metadata_L1B_SWIR_SensorGeo(_EnMAP_Metadata_L1B_Detector_SensorGeo):
         self._path_xml = path_metaxml
         self.detector_label = L1B_product_props['xml_detector_label']['SWIR']
 
-    def read_metadata(self, lon_lat_smpl=(15, 15), nsmile_coef=4):
+    def read_metadata(self, lon_lat_smpl=(15, 15), nsmile_coef=5):
         """Read the metadata of the SWIR detector in sensor geometry.
 
         :param lon_lat_smpl: number if sampling points in lon, lat fields
diff --git a/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM0.zip b/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM0.zip
index 202458da661b9fce76cd9603658d36f9beb89c76..a4d4ace06beeab9a585c04dd82d2be0a4618c2ba 100644
--- a/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM0.zip
+++ b/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM0.zip
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f95193efa0f4cb60415f6d032459d512a912b67af47ee930a52d76add9b9929f
-size 4806165
+oid sha256:f700eea124d70e97fbc38c7dfaad79ea65a08549ca484202abf90efc42c8d802
+size 23472036
diff --git a/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM1.zip b/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM1.zip
index 6fbab5c5c1928fb083a79971619a482b63e34d55..e3159ede6a5acc0f21b2d2aa15f5de1efd85571f 100644
--- a/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM1.zip
+++ b/tests/data/EnMAP_Level_1B/AlpineTest1_CWV2_SM1.zip
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3e1f63384429df8a151d335de6a343d35e4306108700c9384805d58b38cd8369
-size 4809720
+oid sha256:e31195239f427142cfa2692791771d4a966882714284e435e819db8a8335c1e2
+size 23470704