Characteristics of TRAO 14m Radio Telescope (1999)

Details Characteristics of TRAO 14m Radio Telescope (1999) Characteristics of TRAO 14m Radio Telescope (1999)

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pkas...14..123r&link_type=abstract

Publications of the Korean Astronomical Society, vol. 14, no. 2, pp. 123-128

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6

Antenna:Beam Size, Antenna:Efficiency

Scientific paper

The beam size and the antenna efficiency of TRAO 14m radio telescope were measured at 86.2, 98.0 and 115.2 GHz. The beam size was determined by deconvolving the azimuthal scanning data of the Venus. To test the accuracy of our deconvolution method, the beam size at 86.2 GHz was compared with that determined from the mapping data of SiO maser line and we found no difference between them. With above beam sizes, antenna efficiencies were calculated from the continuum measurements of Venus, Jupiter and Moon. The beam efficiencies at these frequencies are appeared to be 0.49, 0.45 and 0.41, respectively. On the other hand, we also suggest that an automatic focus setting can be adopted for TRAO radio telescope based on the gradual change of best focus with elevation.

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