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Table 3 Measured angular errors for an azimuthal scan of a laboratory ion beam

From: Swarm Thermal Ion Imager measurement performance

Commanded azimuth

Measured signal position and 2\(\sigma\) errors

\(-20^{\circ }\)

\(-20.06\pm 0.50^{\circ }\)

\(-0^{\circ }\)

\(0.028\pm 0.36^{\circ }\)

\(+10^{\circ }\)

\(-10.28\pm 0.28^{\circ }\)

\(+20^{\circ }\)

\(-19.64\pm 0.42^{\circ }\)

\(+27^{\circ }\)

\(-26.41\pm 0.50^{\circ }\)