The Uppsala-ESO Survey of Asteroids and Comets (UESAC) took place in 1992–1993. A large number of asteroid

Asteroid

Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

s 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

6102 Visby

6102 Visby is a main belt asteroid with an orbital period of 1532.0615152 days . The asteroid was discovered on March 21, 1993....

 to . More may yet be added as their orbits are confirmed.

The observations were taken from the European Southern Observatory

European Southern Observatory

The European Southern Observatory is an intergovernmental research organisation for astronomy, supported by fifteen countries...

 in Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

, and the Anglo-Australian Observatory

Anglo-Australian Observatory

The Australian Astronomical Observatory , formerly the Anglo-Australian Observatory, is an optical/near-infrared astronomy observatory with its headquarters in suburban Sydney, Australia...

 in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. Details were published in 1996.