Az,za dependence of Tsys

Tsys vs zenith angle:

Spill over causes the gain to decrease (around za=16) and Tsys to increase (around za=16).

Tsys vs azimuth:

Az spins done at za=19 degrees near sunset showed large specular reflections from the sun into the dome (probably off of the ground screen) and a smaller Tsys variation that lined up with the edges of the triangle. (further discussion).

Polarized power that is a function of azimuth:

Using the cband rcvr, the dome was driven 1.5 <->5 za at a number of azimuth positions. The difference between the two polarization's (linear) showed an azimuth dependence (further discussion).

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