Same image as Fig. 3, but now with the positions of the pointings overlaid. Each cube contains data from 45 pointings in declination, by 40 pointings in right ascension covering 11 by 10 degrees. Due to the NCP projection of the data, the declinations close to zero degrees are increasingly distorted, as can be seen in the shape of the pointings that are squeezed toward the lowest declinations. Unfortunately, pointings with both positive and negative declinations could not gridded simultaneously due to limitations of the NCP projection.
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