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I/329 URAT1 Catalog (Zacharias+ 2015)
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=I/329
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-rw-r--r-- 1 cats archive 14957 Feb 1 2016 ReadMe
drwxr-xr-x 5 cats archive 59 Mar 12 2015 URAT1
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-rw-r--r-- 1 cats archive 56766 Mar 12 2015 readme.urat1
-rw-r--r-- 1 cats archive 1126080 Aug 22 2022 tab_1329_1_I_329_urat1.moc.fits
-rw-r--r-- 1 cats archive 56766 Mar 12 2015 urat1doc.txt Beginning of ReadMe :I/329 URAT1 Catalog (Zacharias+ 2015)
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The first U.S. Naval Observatory Astrometric Robotic Telescope Catalog (URAT1)
Zacharias N., Finch C., Subasavage J., Bredthauer G., Crockett C.,
Divittorio M., Furguson E., Harris F., Harris H., Henden A., Kilian C.,
Munn J., Rafferty T., Rhodes A., Schultheiss M., Tilleman T., Wieder G.
<Astron. J., 150, 101 (2015)>
=2015AJ....150..101Z
=2015yCat.1329....0Z
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ADC_Keywords: Surveys ; Positional data ; Proper motions
Description:
URAT is a follow-up project to the successful UCAC project using
the same astrograph but with a much larger focal plane array and a
bandpass shifted further to the red. Longer integration times and
more sensitive, backside CCDs allowed for a substantial increase in
limiting magnitude, resulting in about 4-fold increase in the average
number of stars per square degree as compared to UCAC. Additional
observations with an objective grating largely extend the dynamic
range to include observations of stars as bright as about 3rd
magnitude. Multiple sky overlaps per year result in a significant
improvement in positional precision as compared to UCAC. A URAT1
release paper for the Astronomical Journal is in preparation.
URAT1 is an observational catalog at a mean epoch between 2012.3 and
2014.6; ot covers the magnitude range 3 to 18.5 in R-band, with a
positional precision of 5 to 40 mas. It covers most of the northern
hemisphere and some areas down to -24.8deg in declination.
Acknowledging URAT1: