Observed beam for the LBA. The top row shows the observed beam after updating the instrumental time delays in the beamformer (colorscale). The red contours show the amplitude of a beam model generated from the position of the stations with no additional time delays. They are at the 20%, 50%, 90% and 98% level with respect to the peak response. The bottom row shows the residuals after subtracting the beam model from the observed beam (colorscale). The red contours are the same as in the top row.
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