HERA

HERA (for Hydrogen Epoch of Reionization) is a radio telescope in South Africa operating at 100-200 MHz, aimed at detecting the hydrogen 21-cm line redshifted from the epoch of reionization (much like MWA and LOFAR). HERA's design borrows from their experiences, as well as that of PAPER, which has been declared to be HERA's Phase I.

HERA (proper) aims for a smaller field of view but more sensitivity, consisting of a tight array of fixed 14-meter dishes that view the sky as it passes over them. A 19-element array began operation in 2017, and since has been enlarged to the target of 350 dishes, 320 of them in the closely-packed array and the other 30 distributed in the surrounding area as outriggers, yielding baselines two-to-three times those available in within closely-packed array. An initial data release has been made available.