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Fig. 1.
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EHT in its 2021 configuration. Compared to the original 2017 array, GLT was added in 2018, and KP and NOEMA joined the EHT for the 2021 campaign (indicated in blue). Baselines from SPT and LMT are greyed out since SPT cannot observe M87* (only its calibrator 3C 279), and LMT did not observe in 2021.
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