Bug workaround: sometimes rotate2zne fails resulting in an permanent

error

pylot/core/util/utils.py

@@ -960,6 +960,7 @@ def check4rotated(data, metadata=None, verbosity=1):
                 return wfstream
             # to rotate all traces must have same length, so trim them
             wfstream = trim_station_components(wfstream, trim_start=True, trim_end=True)
+            try:
                 z, n, e = rotate2zne(wfstream[0], azimuts[0], dips[0],
                                      wfstream[1], azimuts[1], dips[1],
                                      wfstream[2], azimuts[2], dips[2])
@@ -980,6 +981,10 @@ def check4rotated(data, metadata=None, verbosity=1):
                     elif az > 45 and az <= 135 or az > 225 and az <= 315:
                         trace.data = e
                         trace.stats.channel = trace.stats.channel[0:-1] + 'E'
+            except (ValueError) as e:
+                print(e)
+                return wfstream
+
         return wfstream
 
     if metadata is None: