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The 26-m Telescope is a 25.6 m prime-focus, equatorially mounted paraboloid that can observe the sky at all declinations north of -34°. It is used for a variety of astronomical projects at decimetre and centimetre wavelengths, although its primary use is in measuring the 1.42 GHz atomic hydrogen line. Receivers are also available for the 1.72 GHz OH line, and the 6.6 GHz methanol line. Other configurations can sometimes be arranged to observe at 408 MHz, 2.7, 4.9 and 8.4 GHz. The antenna has an open-mesh surface with an aperture efficiency of 55% at 1.42 GHz (10 Jy/K), 11% at 6.6 GHz (50 Jy/K). The spectrometer is virtually identical to that on the Synthesis Telescope, offering 256 channels across bands from 0.125 to 4 MHz.
For more information, please contact Tom Landecker.
