Query Beijing-Arizona Sky Survey DR3 Images

About this dataset.

Position Constraints

Rectangle min ra dec (max 10 square degrees)
max ra dec
Cone center ra dec radiusarcsec
solve name:
Proximity list of ra,dec[,radius] (max 100 obj)
 Default radius
arcsec
or Upload File (Sample)
None No position constraint
 

Output

Format:
 

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 name value sample description
minmax
fitsname %p7030g0031_1.fits.fz FITS filename
datetime 2015-01-08 03:06:43.456000 UT date of observation
ccd 1 CCD number
object 52521 Object name
filter g Filter name
exptime 90.0 Exposure time
airmass 1.044 Airmass of the observation
gain 1.375 Average gain for the CCD
saturate 666.667 Saturated value
rdnoise 8.11 Readout noise
nx 4096 Number of pixel in x axis
ny 4032 Number of pixel in x axis
pixscale 0.454968 Pixel scale at the center of the focal plane
ra_obs 36.83504167 R.A. in J2000 for the center of the CCD image
dec_obs 48.07986111 Decl. in J2000 for the center of the CCD image
ra_lb 36.83504167 R.A. in J2000 for the center of the CCD image
dec_lb 48.07986111 Decl. in J2000 for the center of the CCD image
ra_lt 36.83504167 R.A. in J2000 for the center of the CCD image
dec_lt 48.07986111 Decl. in J2000 for the center of the CCD image
ra_rt 36.83504167 R.A. in J2000 for the center of the CCD image
dec_rt 48.07986111 Decl. in J2000 for the center of the CCD image
ra_rb 36.83504167 R.A. in J2000 for the center of the CCD image
dec_rb 48.07986111 Decl. in J2000 for the center of the CCD image
ra 36.83504167 R.A. in J2000 for the center of the CCD image
dec 48.07986111 Decl. in J2000 for the center of the CCD image
sky 273.988 Sky background in flux counts
skyrms 5.511 Sky background RMS in flux counts
skyb 0.0 Sky brightness
seeing 0.0 Dome seeing in FWHM
ref_aper 13.0 Aperture radius for zeropoint calculation
ccdzpt 0.0 External zeropoint derived with Panstarrs DR1 catalog
zptrms 0.0 Combined zeropoint RMS
nmatch 0 Number of stars used for calculating external zeropoint
ccdzpta 0.0 External zeropoint for A amplifier derived with Panstarrs DR1 catalog
zptrmsa 0.0 Combined zeropoint RMS
nmatcha 0 Number of stars used for calculating external zeropoint for A amplifier
ccdzptb 0.0 External zeropoint for B amplifier derived with Panstarrs DR1 catalog
zptrmsb 0.0 Combined zeropoint RMS
nmatchb 0 Number of stars used for calculating external zeropoint for B amplifier
ccdzptc 0.0 External zeropoint for C amplifier derived with Panstarrs DR1 catalog
zptrmsc 0.0 Combined zeropoint RMS
nmatchc 0 Number of stars used for calculating external zeropoint for C amplifier
ccdzptd 0.0 External zeropoint for D amplifier derived with Panstarrs DR1 catalog
zptrmsd 0.0 Combined zeropoint RMS
nmatchd 0 Number of stars used for calculating external zeropoint for D amplifier
int_zpt 0.0 Internal zeropoint for each CCD
int_rms 0.0 Internal zeropoint RMS for each CCD
int_num 0 Number of stars used for calculate the internal zeropoint
zp 0.0 Combined zeropoint
zp_rms 0.0 Combined zeropoint RMS
zp_num 0 Number stars for combined zeropoint
ra_off 0.0 R.A. offset relative to the reference catalog
dec_off 0.0 Decl. offset relative to the reference catalog
ra_rms 0.0 R.A. RMS relative to the reference catalog
dec_rms 0.0 Decl. RMS relative to the reference catalog
astr_num 0 Number of stars used for statistics of astrometric parameters
astr_ref GAIA-DR1 Reference catalog for astrometry
astraerr 999999.0 SCAMP R.A. RMS if existing
astdecerr 999999.0 SCAMP Decl. RMS if existing
depth_point 0.0 Depth for 5σ point sources
depth_extend 0.0 Depth for 5σ extended sources
extension 0 Image extension for the FITS image
mjd 57030.12967 Modified Julian day (-2400000)
imq 5 Image quality; 1 used for stacked image
ebv_sfd 0.199123 Galactic extinction from SFD98 map
ebv_plk 0.172308 Galactic extinction from Planck map
survey bass Survey name
pass 1 Observation pass; 1 for Pass 1; 2 for Pass 2; and 3 for Pass 3
transparency 0.0 Transparency calculated from the zeropoint
sunra 288.957630665008 R.A. in J2000 of the Sun
sundec -22.291869262349 Decl. in J2000 of the Sun
sunalt -30.9056190319726 Altitude of the Sun
sunaz 261.522151319372 Azimuth of the Sun
moonra 142.031792350222 R.A. in J2000 of the Moon
moondec 10.4241586314438 Decl. in J2000 of the Moon
moonalt -1.44554710563532 Altitude of the Moon
moonaz 76.0841750894942 Azimuth of the Moon
filename p7030g0031_1.fits.fz image filename without path