a1 Centre for Astronomy, James Cook University, Townsville, QLD 4811, Australia
a2 School of Physics, University of NSW, Sydney, NSW 2052, Australia
a3 Australia Telescope National Facility, CSIRO, PO Box 76, Epping, NSW 1710, Australia
a4 Alan Turing Building, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
a5 Harvard-Smithsonian Center for Astrophysics, 60, Garden Street, Cambridge, MA 02138, USA
We describe observations with the Mopra radiotelescope designed to assess the feasibility of the H2O Maser Southern Galactic Plane Survey. We mapped two one-square-degree regions along the Galactic plane using the new 12-mm receiver and the UNSW Mopra spectrometer. We covered the entire spectrum between 19.5 and 27.5 GHz using this setup with the main aim of finding out which spectral lines can be detected with a quick mapping survey. We report on detected emission from H2O masers, NH3 inversion transitions (1,1), (2,2) and (3,3), HC3N (3–2), as well as several radio recombination lines.
(Received January 21 2008)
(Accepted March 25 2008)