Fig. 10

Demodulated daytime sky polarization spectra on May 5th 2012. The telescope pointing was azimuth 360 and elevation 90. Data was taken at two different times (2.62 and 4.86 h UT). Each measurement has two independent demodulation calibrations applied with the two calibration unit demodulation matrices. The curves largely overlap showing minimal chromatic effects from the polarization calibration unit. Spectral averaging by a factor of 32 was applied to 125 data points per spectral order to achieve high S/N. The consistency of the data inside each spectral order as well as agreement in regions of spectral order overlap is seen in the smooth spectral variation of the quv spectra.
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