The problem that the rotation is not succesfull is that because the sac
files you use do not have the right header. This always happens when you
use miniseed data. The problem with seed data does not exist!!
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NSF Geodetic Facility for the Advancement of Geoscience (GAGE)
and NSF Seismological Facility for the Advancement of Geoscience (SAGE).
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in this material do not necessarily reflect the views of the
U.S. National Science Foundation.