diff --git a/orix/io/plugins/ang.py b/orix/io/plugins/ang.py
index a88868af..1d941015 100644
--- a/orix/io/plugins/ang.py
+++ b/orix/io/plugins/ang.py
@@ -35,11 +35,6 @@
 
 __all__ = ["file_reader", "file_writer"]
 
-# MTEX has this format sorted out, check out their readers when fixing
-# issues and adapting to other versions of this file format in the future:
-# https://github.com/mtex-toolbox/mtex/blob/develop/interfaces/loadEBSD_ang.m
-# https://github.com/mtex-toolbox/mtex/blob/develop/interfaces/loadEBSD_ACOM.m
-
 # Plugin description
 format_name = "ang"
 file_extensions = ["ang"]
@@ -174,7 +169,8 @@ def _get_vendor_columns(header: List[str], n_cols_file: int) -> Tuple[str, List[
     Returns
     -------
     vendor
-        Determined vendor (``"tsl"``, ``"astar"``, or ``"emsoft"``).
+        Determined vendor (``"tsl"``, ``"astar"``, ``"emsoft"`` or
+        ``"orix"``).
     column_names
         List of column names.
     """
@@ -207,12 +203,12 @@ def _get_vendor_columns(header: List[str], n_cols_file: int) -> Tuple[str, List[
                 "iq",  # Image quality from Hough transform
                 "ci",  # Confidence index
                 "phase_id",
-                "unknown1",
+                "detector_signal",
                 "fit",  # Pattern fit
+                "unknown1",
                 "unknown2",
                 "unknown3",
                 "unknown4",
-                "unknown5",
             ],
             1: [
                 "euler1",
@@ -223,7 +219,7 @@ def _get_vendor_columns(header: List[str], n_cols_file: int) -> Tuple[str, List[
                 "iq",
                 "ci",
                 "phase_id",
-                "unknown1",
+                "detector_signal",
                 "fit",
             ],
         },
diff --git a/orix/tests/io/test_ang.py b/orix/tests/io/test_ang.py
index 442c879d..56658764 100644
--- a/orix/tests/io/test_ang.py
+++ b/orix/tests/io/test_ang.py
@@ -138,8 +138,8 @@ def test_load_ang_tsl(
         assert non_indexed_fraction == np.sum(~xmap.is_indexed)
 
         # Properties
-        prop_names = ["iq", "ci", "unknown1", "fit"]
-        prop_names += [f"unknown{i + 2}" for i in range(n_unknown_cols - 1)]
+        prop_names = ["iq", "ci", "detector_signal", "fit"]
+        prop_names += [f"unknown{i + 1}" for i in range(n_unknown_cols - 1)]
         assert list(xmap.prop.keys()) == prop_names
 
         # Coordinates
@@ -399,12 +399,12 @@ def test_get_header(self, temp_ang_file):
                     "iq",
                     "ci",
                     "phase_id",
-                    "unknown1",
+                    "detector_signal",
                     "fit",
+                    "unknown1",
                     "unknown2",
                     "unknown3",
                     "unknown4",
-                    "unknown5",
                 ],
                 ANGFILE_TSL_HEADER,
             ),