First data release (DR1) of terahertz data from the HEAT telescope at Ridge A

HEAT (the High Elevation Antarctic Terahertz telescope) is a 60cm aperture telescope designed to obtain wide-field spectroscopic maps of the Milky Way in frequency bands from 0.5 to 2 THz. The telescope is described here: http://soral.as.arizona.edu/HEAT/. HEAT is part of the PLATO-R experiment, described here: https://mcba1.phys.unsw.edu.au/~plato-r/. The data set shows the strength of various atomic and molecular emission lines across wide (tens of square degrees) fields-of-view in the Galactic Plane. The spectroscopic information (i.e., doppler shift of the line frequencies) allows an estimate to be made of the distance to the emission.