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A set of general altitude–azimuth tracking angle formulas for a heliostat with a mirror-pivot offset and other geometrical errors were developed previously. The angular parameters with respect to the geometrical errors are the tilt angle, ψ t , and the tilt azimuth angle, ψ a , of the azimuth axis, the bias angle, τ 1 , of the altitude axis from the orthogonal to the azimuth...
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