Table 4: Cross-polarization and principal axis angle measurements for all the channels. The polarization angle and the beam filling values refer to measurements on the complete instrument obtained with the apparatus described in Fig. 12, while the on-axis measurements refer to measurements on the receiver alone, obtained with the apparatus described in Fig. 11 and also in a test cryostat testing single channels.

Channel		 Polarization angle (deg) Cross-polarization $\epsilon$
  nominal measured on-axis beam-filling
145W1 135.0 $137.1 \pm 2.0$ $0.080 \pm 0.006$ $0.11 \pm 0.02$
145W2 45.0 $44.4 \pm 2.0$ $0.062 \pm 0.005$ $0.11 \pm 0.02$
145X1 180.0 $178.4 \pm 2.0$ $0.055 \pm 0.013$ $0.09 \pm 0.02$
145X2 90.0 $88.7 \pm 2.0$ $0.070 \pm 0.008$ $0.13 \pm 0.02$
145Y1 157.5 $158.6 \pm 2.0$ $0.051 \pm 0.012$ $0.11 \pm 0.02$
145Y2 67.5 $66.2 \pm 2.0$ $0.060 \pm 0.006$ $0.11 \pm 0.02$
145Z1 112.5 $109.8 \pm 2.0$ $0.182 \pm 0.004$ $0.22 \pm 0.02$
145Z2 22.5 $21.2 \pm 2.0$ $0.088 \pm 0.008$ $0.12 \pm 0.02$
245W 135.0 $139.2 \pm 2.0$ $0.007 \pm 0.005$ $0.02 \pm 0.02$
245X 45.0 $42.9 \pm 2.0$ $0.007 \pm 0.005$ $0.02 \pm 0.02$
245Y 180.0 $178.7 \pm 2.0$ $0.000 \pm 0.015$ $0.03 \pm 0.02$
245Z 90.0 $85.2 \pm 2.0$ $0.014 \pm 0.013$ $0.01 \pm 0.02$
345W 135.0 $139.9 \pm 2.0$ $0.008 \pm 0.005$ $0.01 \pm 0.02$
345X 45.0 $42.6 \pm 2.0$ $0.008 \pm 0.001$ $0.01 \pm 0.02$
345Y 180.0 $178.7 \pm 2.0$ $0.004 \pm 0.014$ $0.02 \pm 0.02$
345Z 90.0 $84.9 \pm 2.0$ $0.019 \pm 0.013$ $0.02 \pm 0.02$

Source LaTeX | All tables | In the text