Heading/pitch/roll measurements over the sampled time period. Gray dots are observed time series. Magnetic declination in heading measurements is corrected using the World Magnetic Model, WMM2015v2, https://www.ngdc.noaa.gov/geomag/WMM/soft.shtml#downloads. Red lines show 1‐minute,  that is 13 data point window, Gaussian filtered time series. Figure is courtesy of the author, S. Xie.
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