Observations of Galactic Hydrogen with GCO SRT
Joachim Köppen Kiel Jan.2018


Some brief explanations

This tool shows the results of a survey of the Southern Hemisphere skies in the radio line of atomic hydrogen at 21 cm wavelength, done with the 2.3m diameter SRT at Grove Creek Observatory. With a system temperature near 170 K, the integration times are 5 or 10 min on each position.

Also shown are the data from GCO combined with the surveys of the northern sky, done with ESA-Haystack radio telescope of the same type, at Illkirch.

During test operations since 2017 two surveys were done with a system temperature of 400 K and 600 K, with integration times of 4 and 2 hours per position, and despite increasing RF interference. 'IllawongPlane' and 'SouthPlaneFour' cover only 0° latitude, with 600 K system temperature, and were reduced in a quick&rough way.

The results are shown as:


dataset: glong range:


show: vrad = glong = glat =


Mouse position:



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