The Uppsala-ESO Survey of Asteroids and Comets
(UESAC) took place in 1992
. A large number of asteroids
were investigated. Over 15,000 positions were detected, and orbits were calculated for 2500. As of 2006, a total of 1002 new asteroids were discovered and numbered in the process, ranging from 6102 Visby
to . More may yet be added as their orbits are confirmed.
The observations were taken from the European Southern Observatory in Chile, and the Anglo-Australian Observatory in Australia. Details were published in 1996.