U.S. Naval Observatory Astrometry Department

The Radio Reference Frame Image Database
K/Q Band VLBA Images

(This document is available with and without frames.)
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. 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.

VLBA images at 2.3 and 8.4 GHz are also available for many of these sources. VLA and VLBI images at 1.6 and 5 GHz may also be obtained from the Pearson-Readhead and Caltech-Jodrell Surveys. See also the VLBA Calibrator Survey (2.3, 8.4 GHz), the VLBA 2cm Survey (15 GHz) and the VSOP Pre-launch Survey (5 GHz).

Last modified: Fri Dec 2 09:23:33 EST 2005
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