Fig. 2.

Status of the LoTSS observations as of May 2018. The green dots show the images that are presented in this paper. The red, yellow, and black dots show the observed pointings (but yet unpublished), pointings presently scheduled for observation between May 2018 and May 2020, and unobserved pointings, respectively. The HETDEX Spring Field region is outlined in blue. The vast majority of the completed coverage (20% of the northern sky) and upcoming observations (an additional 30% of the northern sky) are regions with low Galactic extinction.
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