/ftp/cats/2/258



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II/258              Hubble Ultra Deep Field Catalog (UDF)     (STScI, 2004)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	udf-i.dat udf-z.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/258
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drwxr-xr-x 351 cats archive 8192 Mar 25 10:13 [Up] drwxr-xr-x 2 cats archive 304 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 468 Dec 19 2022 .message -r--r--r-- 1 cats archive 5772 Apr 22 2009 ReadMe -rw-r--r-- 1 cats archive 1014 Apr 22 2009 +footg5.gif -rw-r--r-- 1 cats archive 2941 Apr 22 2009 +footg8.gif -r--r--r-- 1 cats archive 20450 May 7 2005 intro.txt -r--r--r-- 1 cats archive 2178306 May 7 2005 udf-i.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1501424 May 7 2005 udf-z.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : II/258 Hubble Ultra Deep Field Catalog (UDF) (STScI, 2004) ================================================================================ The Hubble Ultra Deep Field Catalog Beckwith S.V.W. <Space Telescope Science Institute (2004)> ================================================================================ ADC_Keywords: Photometry, HST ; Surveys ; Galaxy catalogs Mission_Name: HST Description: The Hubble Ultra Deep Field (PI: Steven V. W. Beckwith) is a 400-orbit Cycle 12 program to image a single field of the Wide Field Camera (WFC) of the Advanced Camera for Surveys (ACS) in four filters: F435W (B), F606W (V), F775W (i), and F850LP (z). The observations took place over 4 months from September 2003 to January 2004 under two program IDs: 9978 and 10086. The observations consist of half-orbit exposures, cycling through each of the filters in a 4-point dither pattern to provide sub-pixel sampling, as well as a larger-scale 3-point line pattern to cover the 2 second of arc gap between the two ACS/WFC chips. The total exposure times are summarized below, with typical exposure times of 1200s for individual images. The AB magnitude zero-points for ACS are current as of March 2004. --------------------------------------------------------------- Number of Number of Total Exp. AB mag. Orbits Exposures Time (s) zero-point --------------------------------------------------------------- B (F435W): 56 112 134880 25.673 V (F606W): 56 112 135320 26.486 i (F775W): 144 288 347110 25.654 z (F850LP): 144 288 346620 24.862 --------------------------------------------------------------- More details are found in the "intro.txt" file, or from the UDF home page.