diff --git a/SAS/TMSS/src/tmss/tmssapp/adapters/sip.py b/SAS/TMSS/src/tmss/tmssapp/adapters/sip.py
index d1c5ec15123baef2dedd88ff45586ff3535fb38a..49e555448b91d3587c7f39db9a1c7b8021dc5f90 100644
--- a/SAS/TMSS/src/tmss/tmssapp/adapters/sip.py
+++ b/SAS/TMSS/src/tmss/tmssapp/adapters/sip.py
@@ -54,6 +54,8 @@ def get_siplib_stations_list(subtask):
     Retrieve a list of siplib Stations objects which is extracted from the station_list and the antennaset
     :param subtask:
     :return:
+
+    Conversion logic see here: https://support.astron.nl/confluence/display/TMSS/Dataproduct+Provenance
     """
     siplib_station_list = []
     list_stations = subtask.specifications_doc['stations']['station_list']
diff --git a/SAS/TMSS/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json b/SAS/TMSS/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
index 256c576f84a5bf38f14de663abce45395a5ae325..2029524ff1cc8ba2dacd6214157d9854a9490aee 100644
--- a/SAS/TMSS/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
+++ b/SAS/TMSS/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
@@ -6,17 +6,11 @@
   "version":"1",
   "type":"object",
   "definitions":{
-    "station_list":{
-      "title":"fixed station list",
-      "default":[
-        "CS001"
-      ],
-      "type":"array",
-      "additionalItems":false,
-      "additionalProperties":false,
-      "items":{
-        "type":"string",
-        "enum":[
+      "station":{
+      "type":"string",
+      "title":"Station",
+      "description":"",
+      "enum":[
           "CS001",
           "CS002",
           "CS003",
@@ -71,9 +65,18 @@
           "PL612",
           "IE613",
           "LV614"
-        ],
-        "title":"Station",
-        "description":""
+        ]
+      },
+    "station_list":{
+      "title":"fixed station list",
+      "default":[
+        "CS001"
+      ],
+      "type":"array",
+      "additionalItems":false,
+      "additionalProperties":false,
+      "items":{
+        "$ref": "http://tmss.lofar.org/api/schemas/commonschematemplate/stations/1#/definitions/station"
       },
       "minItems":1,
       "uniqueItems":true
diff --git a/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.json b/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.json
index 4c851e2e22e891d32cc34baf0d764ed0eff97f79..ec18c35a2e37b575f746f06d40c2de992e6c2fd2 100644
--- a/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.json
+++ b/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.json
@@ -77,22 +77,8 @@
       "type": "object",
       "properties": {
         "set": {
-          "title": "Antenna set",
-          "type": "string",
-          "default": "HBA_DUAL",
-          "enum": [
-            "HBA_DUAL",
-            "HBA_DUAL_INNER",
-            "HBA_ONE",
-            "HBA_ONE_INNER",
-            "HBA_ZERO",
-            "HBA_ZERO_INNER",
-            "LBA_INNER",
-            "LBA_OUTER",
-            "LBA_SPARSE_EVEN",
-            "LBA_SPARSE_ODD",
-            "LBA_ALL"
-          ]
+          "$ref": "http://tmss.lofar.org/api/schemas/commonschematemplate/stations/1/#/definitions/antenna_set",
+          "default": "HBA_DUAL"
         },
         "fields": {
           "title": "Fields",
@@ -103,62 +89,7 @@
             "type": "object",
             "properties": {
               "station": {
-                "title": "Station",
-                "type": "string",
-                "enum": [
-                  "CS001",
-                  "CS002",
-                  "CS003",
-                  "CS004",
-                  "CS005",
-                  "CS006",
-                  "CS007",
-                  "CS011",
-                  "CS013",
-                  "CS017",
-                  "CS021",
-                  "CS024",
-                  "CS026",
-                  "CS028",
-                  "CS030",
-                  "CS031",
-                  "CS032",
-                  "CS101",
-                  "CS103",
-                  "CS201",
-                  "CS301",
-                  "CS302",
-                  "CS401",
-                  "CS501",
-                  "RS106",
-                  "RS205",
-                  "RS208",
-                  "RS210",
-                  "RS305",
-                  "RS306",
-                  "RS307",
-                  "RS310",
-                  "RS406",
-                  "RS407",
-                  "RS409",
-                  "RS503",
-                  "RS508",
-                  "RS509",
-                  "DE601",
-                  "DE602",
-                  "DE603",
-                  "DE604",
-                  "DE605",
-                  "FR606",
-                  "SE607",
-                  "UK608",
-                  "DE609",
-                  "PL610",
-                  "PL611",
-                  "PL612",
-                  "IE613",
-                  "LV614"
-                ]
+                "$ref": "http://tmss.lofar.org/api/schemas/commonschematemplate/stations/1/#/definitions/station"
               },
               "field": {
                 "title": "Field",
@@ -193,42 +124,7 @@
       "properties": {
         "pointing": {
           "title": "Pointing",
-          "type": "object",
-          "required": [
-            "direction_type",
-            "angle1",
-            "angle2"
-          ],
-          "properties": {
-            "direction_type": {
-              "title": "Direction type",
-              "type": "string",
-              "default": "J2000",
-              "enum": [
-                "J2000",
-                "SUN",
-                "MOON",
-                "MERCURY",
-                "VENUS",
-                "MARS",
-                "JUPITER",
-                "SATURN",
-                "URANUS",
-                "NEPTUNE",
-                "PLUTO"
-              ]
-            },
-            "angle1": {
-              "title": "Angle 1",
-              "type": "number",
-              "default": 0.0
-            },
-            "angle2": {
-              "title": "Angle 2",
-              "type": "number",
-              "default": 0.0
-            }
-          }
+          "$ref": "http://tmss.lofar.org/api/schemas/commonschematemplate/pointing/1/#/definitions/pointing"
         }
       },
       "required": [ "pointing" ]
diff --git a/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.txt b/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.txt
deleted file mode 100644
index 4c851e2e22e891d32cc34baf0d764ed0eff97f79..0000000000000000000000000000000000000000
--- a/SAS/TMSS/src/tmss/tmssapp/schemas/dataproduct_feedback_template-feedback-1.txt
+++ /dev/null
@@ -1,315 +0,0 @@
-{
-  "$id":"http://tmss.lofar.org/api/schemas/dataproductfeedbacktemplate/feedback/1#",
-  "$schema": "http://json-schema.org/draft-06/schema#",
-  "title": "feedback",
-  "type": "object",
-  "properties": {
-    "percentage_written": {
-      "title": "Percentage written",
-      "type": "integer",
-      "default": 0
-    },
-    "frequency": {
-      "title": "Frequency",
-      "type": "object",
-      "properties": {
-        "subbands": {
-          "title": "Subbands",
-          "type": "array",
-          "default": [],
-          "items": {
-            "title": "Subband",
-            "type": "integer",
-            "minimum": 0,
-            "maximum": 511
-          }
-        },
-        "central_frequencies": {
-          "title": "Central frequencies",
-          "type": "array",
-          "default": [],
-          "items": {
-            "title": "frequency",
-            "type": "number",
-            "default": 0.0,
-            "minimum": 0.0
-          }
-        },
-        "channel_width": {
-          "title": "Channel width",
-          "type": "number",
-          "default": 3051.8,
-          "minimum": 0.0
-        },
-        "channels_per_subband": {
-          "title": "Channels per subband",
-          "type": "integer",
-          "default": 64,
-          "minimum": 1
-        }
-      },
-      "required": [ "subbands", "central_frequencies", "channel_width", "channels_per_subband" ]
-    },
-    "time": {
-      "title": "Time",
-      "type": "object",
-      "properties": {
-        "start_time": {
-          "title": "Start time",
-          "type": "string",
-          "default": ""
-        },
-        "duration": {
-          "title": "Duration",
-          "type": "number",
-          "default": 0.0
-        },
-        "sample_width": {
-          "title": "Sample width",
-          "type": "number",
-          "default": 0.0
-        }
-      },
-      "required": [ "start_time", "duration", "sample_width" ]
-    },
-    "antennas": {
-      "title": "Antennas",
-      "type": "object",
-      "properties": {
-        "set": {
-          "title": "Antenna set",
-          "type": "string",
-          "default": "HBA_DUAL",
-          "enum": [
-            "HBA_DUAL",
-            "HBA_DUAL_INNER",
-            "HBA_ONE",
-            "HBA_ONE_INNER",
-            "HBA_ZERO",
-            "HBA_ZERO_INNER",
-            "LBA_INNER",
-            "LBA_OUTER",
-            "LBA_SPARSE_EVEN",
-            "LBA_SPARSE_ODD",
-            "LBA_ALL"
-          ]
-        },
-        "fields": {
-          "title": "Fields",
-          "type": "array",
-          "default": [],
-          "items": {
-            "title": "Field",
-            "type": "object",
-            "properties": {
-              "station": {
-                "title": "Station",
-                "type": "string",
-                "enum": [
-                  "CS001",
-                  "CS002",
-                  "CS003",
-                  "CS004",
-                  "CS005",
-                  "CS006",
-                  "CS007",
-                  "CS011",
-                  "CS013",
-                  "CS017",
-                  "CS021",
-                  "CS024",
-                  "CS026",
-                  "CS028",
-                  "CS030",
-                  "CS031",
-                  "CS032",
-                  "CS101",
-                  "CS103",
-                  "CS201",
-                  "CS301",
-                  "CS302",
-                  "CS401",
-                  "CS501",
-                  "RS106",
-                  "RS205",
-                  "RS208",
-                  "RS210",
-                  "RS305",
-                  "RS306",
-                  "RS307",
-                  "RS310",
-                  "RS406",
-                  "RS407",
-                  "RS409",
-                  "RS503",
-                  "RS508",
-                  "RS509",
-                  "DE601",
-                  "DE602",
-                  "DE603",
-                  "DE604",
-                  "DE605",
-                  "FR606",
-                  "SE607",
-                  "UK608",
-                  "DE609",
-                  "PL610",
-                  "PL611",
-                  "PL612",
-                  "IE613",
-                  "LV614"
-                ]
-              },
-              "field": {
-                "title": "Field",
-                "type": "string",
-                "default": "HBA",
-                "enum": [
-                  "LBA",
-                  "HBA",
-                  "HBA0",
-                  "HBA1"
-                ]
-              },
-              "type": {
-                "title": "Type",
-                "type": "string",
-                "default": "HBA",
-                "enum": [
-                  "LBA",
-                  "HBA"
-                ]
-              }
-            },
-            "required": [ "station", "field", "type" ]
-          }
-        }
-      },
-      "required": [ "fields" ]
-    },
-    "target": {
-      "title": "Target",
-      "type": "object",
-      "properties": {
-        "pointing": {
-          "title": "Pointing",
-          "type": "object",
-          "required": [
-            "direction_type",
-            "angle1",
-            "angle2"
-          ],
-          "properties": {
-            "direction_type": {
-              "title": "Direction type",
-              "type": "string",
-              "default": "J2000",
-              "enum": [
-                "J2000",
-                "SUN",
-                "MOON",
-                "MERCURY",
-                "VENUS",
-                "MARS",
-                "JUPITER",
-                "SATURN",
-                "URANUS",
-                "NEPTUNE",
-                "PLUTO"
-              ]
-            },
-            "angle1": {
-              "title": "Angle 1",
-              "type": "number",
-              "default": 0.0
-            },
-            "angle2": {
-              "title": "Angle 2",
-              "type": "number",
-              "default": 0.0
-            }
-          }
-        }
-      },
-      "required": [ "pointing" ]
-    },
-    "samples": {
-      "title": "Samples",
-      "type": "object",
-      "properties": {
-        "polarisations": {
-          "title": "Polarisations",
-          "type": "array",
-          "default": [
-            "XX",
-            "XY",
-            "YX",
-            "YY"
-          ],
-          "items": {
-            "title": "Polarisation",
-            "type": "string",
-            "default": "I",
-            "enum": [
-              "XX",
-              "XY",
-              "YX",
-              "YY",
-              "I",
-              "Q",
-              "U",
-              "V",
-              "Xr",
-              "Xi",
-              "Yr",
-              "Yi"
-            ]
-          }
-        },
-        "type": {
-          "title": "Type",
-          "type": "string",
-          "default": "float",
-          "enum": [
-            "float",
-            "integer"
-          ]
-        },
-        "complex": {
-          "title": "Complex values",
-          "type": "boolean",
-          "default": true
-        },
-        "bits": {
-          "title": "Bits per sample",
-          "type": "integer",
-          "default": 32,
-          "enum": [
-            4,
-            8,
-            16,
-            32,
-            64
-          ]
-        },
-        "writer": {
-          "title": "Writer",
-          "type": "string",
-          "default": "standard",
-          "enum": [
-            "lofarstman",
-            "standard",
-            "dysco"
-          ]
-        },
-        "writer_version": {
-          "title": "Writer version",
-          "type": "string",
-          "default": "UNKNOWN"
-        }
-      },
-      "required": [ "polarisations", "type", "complex", "bits", "writer" ]
-    }
-  },
-  "required": [ "percentage_written", "frequency", "time", "antennas", "target", "samples" ]
-}
diff --git a/SAS/TMSS/test/t_adapter.py b/SAS/TMSS/test/t_adapter.py
index c27d8cf419022721a534c6ca737c6126e873d432..379f3a37a4b53165882be3579af3eef08a8b40fe 100755
--- a/SAS/TMSS/test/t_adapter.py
+++ b/SAS/TMSS/test/t_adapter.py
@@ -44,6 +44,7 @@ from lofar.sas.tmss.tmss.tmssapp.adapters.parset import convert_to_parset
 from lofar.common.json_utils import get_default_json_object_for_schema
 from lofar.sas.tmss.tmss.tmssapp.adapters.sip import generate_sip_for_dataproduct
 from lofar.sas.tmss.tmss.tmssapp.adapters.feedback import generate_dataproduct_feedback_from_subtask_feedback_and_set_finished
+from lofar.lta.sip import constants
 
 class ParsetAdapterTest(unittest.TestCase):
     def test_01(self):
@@ -63,9 +64,10 @@ class SIPdapterTest(unittest.TestCase):
     def test_simple_sip_generate_from_dataproduct(self):
         subtask_template = models.SubtaskTemplate.objects.get(name='observation control')
         specifications_doc = get_default_json_object_for_schema(subtask_template.schema)
+        specifications_doc['stations']['filter'] = "HBA_210_250"
         feedback_template = models.DataproductFeedbackTemplate.objects.get(name='feedback')
         # feedback_doc = get_default_json_object_for_schema(feedback_template.schema)  # todo <- fix the default generator, for some reason it does not produce valid json here...
-        feedback_doc = {'percentage_written': 100, 'frequency': {'subbands': [156], 'central_frequencies': [33593750.0], 'channel_width': 6103.515625, 'channels_per_subband': 32}, 'time': {'start_time': '2013-02-16T17:00:00.000', 'duration': 5.02732992172, 'sample_width': 2.00278016}, 'antennas': {'set': 'HBA_DUAL', 'fields': [{'type': 'HBA', 'field': 'HBA0', 'station': 'CS001'}, {'type': 'HBA', 'field': 'HBA1', 'station': 'CS001'}]}, 'target': {'pointing': {'angle1': 0, 'angle2': 0, 'angle3': 0, 'direction_type': 'J2000'}}, 'samples': {'polarisations': ['XX', 'XY', 'YX', 'YY'], 'type': 'float', 'bits': 32, 'writer': 'standard', 'writer_version': '2.2.0', 'complex': True}, '$schema': 'http://127.0.0.1:8001/api/schemas/dataproductfeedbacktemplate/feedback/1#'}
+        feedback_doc = {'percentage_written': 100, 'frequency': {'subbands': [156], 'central_frequencies': [33593750.0], 'channel_width': 6103.515625, 'channels_per_subband': 32}, 'time': {'start_time': '2013-02-16T17:00:00', 'duration': 5.02732992172, 'sample_width': 2.00278016}, 'antennas': {'set': 'HBA_DUAL', 'fields': [{'type': 'HBA', 'field': 'HBA0', 'station': 'CS001'}, {'type': 'HBA', 'field': 'HBA1', 'station': 'CS001'}]}, 'target': {'pointing': {'angle1': 0, 'angle2': 0, 'angle3': 0, 'direction_type': 'J2000'}}, 'samples': {'polarisations': ['XX', 'XY', 'YX', 'YY'], 'type': 'float', 'bits': 32, 'writer': 'standard', 'writer_version': '2.2.0', 'complex': True}, '$schema': 'http://127.0.0.1:8001/api/schemas/dataproductfeedbacktemplate/feedback/1#'}
         for dp in specifications_doc['stations']['digital_pointings']:
             dp['subbands'] = list(range(8))
         subtask_data = Subtask_test_data(subtask_template=subtask_template, specifications_doc=specifications_doc)
@@ -73,10 +75,13 @@ class SIPdapterTest(unittest.TestCase):
         subtask_output = models.SubtaskOutput.objects.create(**SubtaskOutput_test_data(subtask=subtask))
         dataproduct:models.Dataproduct = models.Dataproduct.objects.create(**Dataproduct_test_data(feedback_doc=feedback_doc, producer=subtask_output))
 
+        # make sure we can create a valid SIP
         sip = generate_sip_for_dataproduct(dataproduct)
-        # TODO: Although validation succeeded at this step, it would be interesting to check some values of the produced xml...
-        logger.info(sip.get_prettyxml())
 
+        # double-check that SIP contains values from feedback and specifications docs
+        self.assertIn(str(feedback_doc['frequency']['channel_width']), sip.get_prettyxml())
+        self.assertIn(str(feedback_doc['time']['start_time']), sip.get_prettyxml())
+        self.assertIn(constants.FILTERSELECTIONTYPE_210_250_MHZ, sip.get_prettyxml()) # specifications_doc: "HBA_210_250"
 
 
 class FeedbackAdapterTest(unittest.TestCase):