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Universität zu Köln
Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

GREAT arrives at NASA's Dryden Aircraft Operations Facility

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greatThe German REceiver for Astronomy at Terahertz Frequencies (GREATa), a modular dual-channel heterodyne receiver, is a principal investigator (PI) class instrument for the Stratospheric Observatory For Infrared Astronomy (SOFIA) and one of the two receivers selected for SOFIA's Early Science phase.

greatshipmentSOFIA is a highly modified Boeing 747-SP equipped with a 2.5m diameter telescope. It is able to fly and observe at altitudes up to 45000 feet (13700 m). After final tests, GREAT was shipped to NASA's Dryden Aircraft Operations Facility (DAOF) in Palmdale, California, where it arrived on October 5th. First tests after reassembly show that the instrument is in good condition and survived the transport without significant damage. GREAT is going to be integrated into SOFIA in early December, followed by ground-based test observations. First science flights with GREAT are scheduled for February/March 2011.

a) GREAT was built jointly by the MPI for Radioastronomy in Bonn, the I. Physics Institute of the University of Cologne, the DLR Institute for Planetary Research in Berlin and the MPI for Solar System Research in Lindau.


(UGr 2010-10-25)