/ftp/cats/aliases/V/./VCS5



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J/AJ/133/1236       Fifth VLBA calibrator survey: VCS5       (Kovalev+, 2007)
The following files can be converted to FITS (extension .fit or fit.gz)
	table1.dat table2.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/AJ/133/1236
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drwxr-xr-x 72 cats archive 4096 Nov 12 2019 [Up] drwxr-xr-x 2 cats archive 313 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 476 Dec 19 2022 .message -r--r--r-- 1 cats archive 7017 Apr 13 2011 ReadMe -rw-r--r-- 1 cats archive 703 Jul 28 2016 +footg5.gif -rw-r--r-- 1 cats archive 6964 Jul 28 2016 +footg8.gif -r--r--r-- 1 cats archive 62794 Jan 25 2009 table1.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 3740 Jan 25 2009 table2.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/AJ/133/1236 Fifth VLBA calibrator survey: VCS5 (Kovalev+, 2007) ================================================================================ The fifth VLBA calibrator survey: VCS5. Kovalev Y.Y., Petrov L., Fomalont E.B., Gordon D. <Astron. J., 133, 1236-1242 (2007)> =2007AJ....133.1236K ================================================================================ ADC_Keywords: Surveys; Radio sources; Positional data Keywords: astrometry - catalogs - surveys Abstract: This paper presents the fifth part of the Very Long Baseline Array (VLBA) Calibrator Survey (VCS), containing 569 sources not observed previously with very long baseline interferometry in geodetic or absolute astrometry programs. This campaign has two goals: (1) to observe additional sources that, together with previous survey results, form a complete sample, and (2) to find new strong sources suitable as phase calibrators. This VCS extension was based on three 24-hr VLBA observing sessions in 2005. It detected almost all extragalactic flat-spectrum sources with correlated flux density greater than 200mJy at 8.6GHz above declination -30deg that were not observed previously. Source positions with milliarcsecond accuracy were derived from astrometric analysis of ionosphere-free combinations of group delays determined from the 2.3 and 8.6GHz frequency bands. The VCS5 catalog of source positions, plots of correlated flux density versus projected baseline length, contour plots, and FITS files of naturally weighted CLEAN images, as well as calibrated visibility function files, are available on the World Wide Web at http://vlbi.gsfc.nasa.gov/vcs5 Description: The VCS5 observations were carried out in three 24hr observing sessions with the VLBA on 2005 July 8, 9, and 20. Each of the 675 target sources was observed in two scans of 120s each.