There were 4 reports of cometary activity.
The first report was by M. Jaeger.
There were 3 reports of a coma and there were 2 reports of a tail.

An apparently asteroidal object discovered on CCD images taken on Aug. 20
UT with a 0.5-m f/2 Schmidt reflector at Haleakala, Hawaii, in the course of
the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program has
been found to show cometary appearance by observers elsewhere after it was
posted to the Minor Planet Center's PCCP webpage.