This comet was discovered by Aren Heinze, University of Hawaii, on images taken on Oct. 2.6 UT with the ATLAS 0.5-m f/2.0 Schmidt telescope at Mauna Loa in the course of the "Asteroid Terrestrial-impact Last Alert System" (ATLAS) search program (discovery images tabulated below, together with observations subsequently identified several nights earlier taken with the same telescope); the object shows clear cometary features, with a tail about 10" long towards position angle about 240 degrees, with a measured coma diameter of 7".2
….. as measured within a circular aperture of radius 6".5. E. Bryssinck, Kruibeke, Belgium, obtained six 120-s exposures remotely on Oct. 9.50 with a 0.62-m f/6.5 telescope at the Sierra Remote Observatory near Auberry, CA, USA, which show a diffuse coma of size 10" with a hint of a tail about 15" long towards p.a. 239 deg; the R-band magnitude was 17.5 in an aperture of radius 5".0. ….