Decomposition of fluctuating signal in the science SPWs of Band 5 to
(a) varying absorption in water vapor - dW, and (b) [apparent] brightness
fluctuations - dB. Folder dWdB shows disentangled dW/dB contributions, folder
residuals shows the residual errors per SPW:POL channel in our over-determined
set of linear (we use the differential/flcutuations-only approach here)
equations. Eahc figure is per one antenna. Underlying data are formed by
the solar on-source scan of Band 5 observation of Dec 2023 test dataset.