first release, not tested

insarviz/ts_io/loaders/flatsim_loader.py

@@ -63,7 +63,10 @@ def load(*args):
                                 "y": range(src.height),
                                 "x": range(src.width)},
                         attrs={"pdates": pdates,
-                               "sdates": sdates},
+                               "sdates": sdates,
+                               "unit": "rad",
+                               "type": "ts",
+                               "subtype": "flatsim"},
                         name=args[0])
 
     return data