The KOSMA 3m submillimeter telescope was built 1985 by the Kölner Observatory for Submillimeter Astronomy (KOSMA) on the Gornegrat near Zermatt in Switzerland and was operated by the 1. Physikalisches Institut, Universität zu Köln, and the Radioastronomisches Institut, University of Bonn. It was supported by a special funding from the Land Nordrhein-Westfalen.
In 2010, after 25 years on the Gornegrat, the KOSMA telescope left Switzerland and started its long journey to Yangbaijing/Lhasa/Tibet, where it's mounted on a 4300m high mountain today. The climate conditions are better in China, because the air is dryer there. On 2nd June 2010 the last part of the telescope left Switzerland. On 7th May 2011 the reconstruction started. The telescope is in the possession of China now, but the German astronomers can still work with it.
The telescope will stay in Yanbaijing for some years. After this period it will move to western Tibet on the height of 5000 or 6000m, where the climate conditions are always dry and perfect for the telescope.
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