Fill r1 event type also for old data

src/ctapipe_io_lst/__init__.py

@@ -929,6 +929,9 @@ def fill_trigger_info(self, array_event):
         if trigger.event_type == EventType.UNKNOWN:
             self.log.warning(f'Event {array_event.index.event_id} has unknown event type, trigger: {trigger_bits:08b}')
 
+        if CTAPIPE_0_20:
+            array_event.r1.tel[tel_id].event_type = trigger.event_type
+
     def tag_flatfield_events(self, array_event):
         '''
         Use a heuristic based on R1 waveforms to recognize flat field events

src/ctapipe_io_lst/pixels.py

@@ -0,0 +1,25 @@
+import numpy as np
+from astropy.table import Table
+from .constants import N_PIXELS_MODULE 
+
+def get_pixel_table(pixel_id_map, module_id_map):
+    """
+    Construct a table of pixel / module ids from the mappings in CameraConfiguration
+    """
+    module_index = np.repeat(np.arange(len(module_id_map)), N_PIXELS_MODULE)
+    pixel_index = np.arange(len(pixel_id_map))
+
+    local_pixel_index = pixel_index % N_PIXELS_MODULE
+    hardware_pixel_id = module_id_map * N_PIXELS_MODULE + local_pixel_index
+
+    table = Table(dict(
+        pixel_id=pixel_id_map,
+        pixel_index=pixel_index,
+        hardware_pixel_id=hardware_pixel_id,
+        module_id=module_id_map,
+        local_pixel_index=local_pixel_index,
+        module_index=module_index,
+    ))
+
+    table.sort("pixel_id")
+    return table

src/ctapipe_io_lst/tests/test_lsteventsource.py

@@ -318,8 +318,7 @@ def test_pedestal_events(tmp_path):
                 assert event.trigger.event_type == EventType.SKY_PEDESTAL
             else:
                 assert event.trigger.event_type != EventType.SKY_PEDESTAL
-
-
+            assert event.r1.tel[1].event_type == event.trigger.event_type
 
 
 @pytest.mark.parametrize(