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II/262 BATC Data Release One - BATC DR1 (Zhou+ 1995-2005)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
filters.dat summary.dat batc/*
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/262
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drwxr-xr-x 351 cats archive 8192 Mar 25 10:13 [Up]
drwxr-xr-x 3 cats archive 4096 Jan 12 2023 [TAR file]
-rw-r--r-- 1 cats archive 478 Dec 19 2022 .message
-r--r--r-- 1 cats archive 11604 Jun 9 2011 ReadMe
-rw-r--r-- 1 cats archive 1457 Oct 23 2017 +footg5.gif
-rw-r--r-- 1 cats archive 4857 Oct 23 2017 +footg8.gif
drwxr-xr-x 2 cats archive 4096 Jul 28 2005 batc
-r--r--r-- 1 cats archive 791113 Jul 28 2005 filters.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 10494 Jul 26 2005 filters.gif
-rw-r--r-- 1 cats archive 1273 Jan 29 2014 graph1
-rw-r--r-- 1 cats archive 2957 Jan 29 2014 graph_recno
-r--r--r-- 1 cats archive 3850 Jul 22 2005 summary.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :II/262 BATC Data Release One - BATC DR1 (Zhou+ 1995-2005)
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Large Field Multi-Color Sky Survey Data Release One - BATC DR1
Xu ZHOU, Zhaoji JIANG
<National Astronomical Observatories of China (1995-2005)>
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ADC_Keywords: Colors; Galaxies, photometry; Photometry, special systems
Description:
Multi-color photometry data of the project, "Large Field Multi-Color
Sky Survey" supported by Beijing-Arizona-Taiwan-Connecticut (BATC) is
presented. From 1995 to 2004, 110 58'x58' sky survey fields have been
observed. First release of BATC catalog includes observation results
for 511842 sources located in 70 sky survey fields. The whole release
is divided into 70 files. Each file corresponds to one observation
field.
The BATC filter system includes 15 intermediate band filters, covering
a range in optical wavelengths from 300 to 1000 nm. The telescope used
is a 60/90 cm f/3 Schmidt telescope located at Xinglong Station of
National Astronomical Observatories. A Ford Aerospace 2048x2048 CCD
camera with 15 micron pixel size is mounted at the Schmidt focus of
the telescope. The field of view of the CCD is 58'x58' with a plate
scale of 1.7arcsec per pixel.
The BATC magnitude system adopts the AB magnitude system, defining as
M_batc_ = -2.5log(F_nu_) - 48.60
where F_nu_ is the flux per unit frequency in units of
erg/s/cm^2^/Hz, and
F_nu_=Sum[d(lognu)*f_nu_*R_nu_]/Sum[d(lognu)*R_nu_]
where R_nu_ represents the response of the system. Four Oke & Gunn
(1983ApJ...266..713O) standards, HD 19445, HD 84937, BD+26 2606 and
BD+17 4708 are observed in photometric nights for flux calibration.
We provide catalogues down to i-band (666nm) about 20 mag with
complete spectral energy distributions (SEDs) for each object.
Typical error in photometry is about 0.02-0.05 mag.
There is usually the deepest observation at i-band. Most of the
catalogs use i-band data as their reference for coordinate
calibration. While, "T0329","TA01" and "TA03" use j-band as reference.
All colors in the "TA04" catalog have no photo calibration.
For detailed information of the data reduction, please refer to:
Zhou, X., Jiang, Z., Ma, J., et al. 2003, 2003A&A...397..361Z