14apr12 Tsys increase during rain.


     Project a2335 was observing with lbw on 14apr12 from 19:00 to 23:00 ast. They did 300 second on, off position switching using the interim correlator. They used frequencies between 1350 and 1400 MHz. When reducing the data, a number of on,off pairs had baselines with variations that extended across the entire 25 MHz band. This occurred for both pols. It also occurred in the 4 subcorrelators that were used. During this observation there was some rain. By plotting the on/off-1 vs hour and then over plotting the  cumulative rainfall, you can see that the baseline variations are correlated with the rainfall.

    Plot the on/off-1 position switching with the cumulative rainfall over plotted (.ps) (.pdf):


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