Beijing-Arizona Sky Survey Data Release 3
Publish Time:2019-08-30
The Beijing–Arizona Sky Survey (BASS) is a wide and deep imaging survey that covers a 5400 sq. deg area in the northern Galactic cap with the 2.3 m Bok telescope using two filters (g and r bands). The Mosaic z-band Legacy Survey (MzLS) covers the same area in the z band with the 4 m Mayall telescope. These two surveys will be used for spectroscopic targeting by the Dark Energy Spectroscopic Instrument (DESI) in the northernmost portion of the DESI footprint. This paper describes the third data release (DR3) of BASS, which contains the photometric data from all BASS and MzLS observations from 2015 January until the completion of BASS in 2019 March. The median astrometric precision relative to Gaia positions is about 17 mas and the median photometric offset relative to the Pan- STARRS1 photometry is within 5 mmag. The median 5σ AB magnitude depths for point sources are 24.2, 23.6, and 23.0 mag for the g, r, and z bands, respectively. The photometric depth within the survey area is highly homogeneous, and the difference between the 20% and 80% depth is less than 0.3 mag. The DR3 data, including raw data, calibrated single-epoch images, single-epoch photometric catalogs, stacked images, and co-added photometric catalogs.
· Data access ·
♦INTRODUCTION♦
Keywords
BASS , Survey；photometry , image , catalog
Data volume
4 tables
195812077 rows
27782144.00 MB
Data format
application/fits ,
application/csv ,
application/png
Sharing method
Sharing scope
DOI
CSTR
VO Identifier
ivo://China-VO/data/BASS/DR3
♦Sub-datasets and Tables♦
♦CONTACT AUTHOR♦
Author
Zhou Xu
Email
zhouxu(at)nao.cas.cn
♦CONTACT PUBLISHER
♦
Email
support(at)china-vo.org
Phone
+86-10-64807973
Institution
National Astronomical Data Center
♦TAGS♦
waveband
Optical
telescope or project
Beijing-Arizona Sky Survey (BASS)
subject
Cosmology and Galaxies
Star and Interstellar Matter
data type
Image Data
production age
1980-
content level
Research