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These data are part of a joint NASA, NRAO, Bordeaux Observatory and USNO program to extend
the International Celestial Reference Frame to K- (24 GHz), Ka- (32
GHz), and Q-band (43 GHz). The goals of this program are a) to
provide a Ka-band reference frame for improved deep space navigation,
b) to extend the VLBA calibrator catalog at K- and Q-bands, c) to
provide K- and Q-band images to enable studies of source structure
variation with respect to frequency and time, and d) to provide the
benefit of the ICRF catalog to new applications at these higher
frequencies.
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Available items include PostScript format contour plots of
International Celestial Reference Frame source images at frequencies
of 24 GHz and 43 GHz. Plots of visibility data in
PostScript format are also available. Calibration, data analysis, and
other information can be obtained by retrieving the files 0000CALIB.ps
and 0000README (one for each observation epoch). If you make
use of these data in any publication, please refer to the citation
instructions.
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