FOSSIL detects JTs and TNOs by searching for objects which move relative to the background stars in a sequence of images. The images below show a JT and a TNO discoverd by FOSSIL.
Objects can be classified by their rate of motion across the sky, as can be seen on the plot below. There are NEAs, MBAs, Hildas, JTs, centaurs, TNOs. write more stuff....
All data from 2020 have been analyzed. FOSSIL found: