The Uppsala–DLR Trojan Survey ( UDTS , also known as UAO–DLR Trojan Survey ) is an astronomical survey to study the movements and locations of asteroids near Jupiter , which includes Jupiter trojans and other asteroids, which line-of sight are frequently blocked by the giant planet.
7-688: The survey was carried out at the Uppsala Astronomical Observatory in Sweden , in collaboration with the German Aerospace Center (DLR). Principal investigators were the astronomers Claes-Ingvar Lagerkvist , Gerhard Hahn, Stefano Mottola , Magnus Lundström and Uri Carsenty . The Uppsala–DLR Trojan Survey, UDTS, should not be confused with its successor, the Uppsala-DLR Asteroid Survey (UDAS), which started shortly after
14-471: Is some notable controversy over P/1997 T3 , one of the objects found in this survey, namely an asteroid-like object with a comet -like tail. It is thought that this tail is composed of dust, due to its consistent appearance, and the fact that it is pointing towards the Sun, not away from it. The group of Jupiter trojan contains about 6,000 asteroid. They are named after figures from Greek mythology , typically after
21-519: The UDTS concluded. During the course of the survey, two telescopes were used at ESO 's La Silla site in northern Chile. In fall of 1996, the ESO Schmidt telescope surveyed approximately 900 deg2 at Jupiter's L 4 Lagrangian point , location of the so-called Greek camp . Additional positions and magnitudes of asteroids were obtained using the (now decommissioned) 0.61-meter Bochum telescope . There
28-586: The heroes of the Trojan War as narrated in Homer's Iliad . The Minor Planet Center credits the Uppsala–DLR Trojan Survey with the discovery of 62 numbered minor planets during 1996–1997. Uppsala Astronomical Observatory The Uppsala Astronomical Observatory ( UAO ), Astronomiska observatoriet i Uppsala ) is the oldest astronomical observatory in Sweden . It was founded in 1741, though there
35-672: The observatory and conducted his experiments in astronomy, physics and optics there. His son, Knut Ångström , also conducted research on solar radiation at the observatory. In 2000 the observatory merged with the Institute of Space Physics to form the Department of Astronomy and Space Physics and moved to the Ångström Laboratory . In 2008, another merger resulted in the Department of Physics and Astronomy, Astronomy and Space Physics becoming one of its divisions. In addition to facilities in Uppsala,
42-406: The rooftop. Celsius both worked and had his personal living quarters in the house. This observatory remained in use until the new observatory, now known as the "old observatory", was built in 1853. The Celsius house itself remains as one of few older buildings on a modern shopping street, but the observatory on the roof was demolished in 1857. In the 19th century Anders Jonas Ångström was keeper of
49-477: Was a professorial chair of astronomy at the University of Uppsala from 1593 and the university archives include lecture notes in astronomy from the 1480s. In the 18th century, Anders Celsius performed his research there and built the first observatory proper in 1741. Celsius got the university consistory to buy a large stone house of medieval origin in central Uppsala, where he had an observatory constructed on
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