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VizieR

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II/328/allwise AllWISE Data Release (Cutri+ 2013)
The AllWISE data Release (updated version, 16-Feb-2021); please acknowledge the usage of the WISE data products (747634026 rows)
  AllWISE===J202010.82+164439.9
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ColumnValue  Explain   (UCD)
_RAJ200020 20 10.829304 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+16 44 39.91056 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195020 17 53.469268 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+16 35 08.63692 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon058.345262835 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-10.978902828 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

AllWISEJ202010.82+164439.9  (i) WISE All-Sky Release Catalog name, based on J2000 position, <WISEA JHHMMSS.ss+DDMMSS.s> (designation) (meta.id;meta.main)
RAJ2000305.0451221 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+16.7444196 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
eeMaj 0.0702 arcsec Semi-major axis of the error ellipse (Note 1)   (stat.error)
eeMin 0.0644 arcsec Semi-minor axis of the error ellipse (Note 1)   (stat.error)
eePA150.0 deg Position angle of the error ellipse (Note 1)   (pos.posAng;pos.errorEllipse)

ImIm  Image of the 4 bands from the IRSA server (IPAC) (meta.ref.url)

W1mag14.531 mag W1 magnitude (3.35um) Red values correspond to upper limits (S/N<2) (phot.mag;em.IR.3-4um)
e_W1mag 0.029 mag Mean error on W1 magnitude (stat.error;phot.mag)
W2mag14.639 mag W2 magnitude (4.6um) Red values correspond to upper limits (S/N<2) (phot.mag;em.IR.4-8um)
e_W2mag 0.051 mag Mean error on W2 magnitude (stat.error;phot.mag)
W3mag10.831 mag W3 magnitude (11.6um) Red values correspond to upper limits (S/N<2) (phot.flux.density;em.IR.8-15um)
e_W3mag 0.108 mag Mean error on W3 magnitude (stat.error;phot.mag)
W4mag 6.793 mag W4 magnitude (22.1um) Red values correspond to upper limits (S/N<2) (phot.flux.density;em.IR.15-30um)
e_W4mag 0.105 mag Mean error on W4 magnitude (stat.error;phot.mag)
Jmag15.346 mag (i) 2MASS J magnitude (1.25um) Red values correspond to upper limits (S/N<2) (phot.mag;em.IR.J)
e_Jmag 0.050 mag Mean error on J magnitude (stat.error;phot.mag)
Hmag14.760 mag (i) 2MASS H magnitude (1.65um) Red values correspond to upper limits (S/N<2) (phot.mag;em.IR.H)
e_Hmag 0.065 mag Mean error on H magnitude (stat.error;phot.mag)
Kmag14.692 mag (i) 2MASS Ks magnitude (2.17um) Red values correspond to upper limits (S/N<2) (phot.mag;em.IR.K)
e_Kmag 0.097 mag Mean error on Ks magnitude (stat.error;phot.mag)
wx1883.472 pix x-pixel coordinate on the Atlas Image (pos.cartesian.x;instr.det)
wy2271.962 pix y-pixel coordinate on the Atlas Image (pos.cartesian.y;instr.det)
ID3049116601351033708  Unique source ID (meta.id.part;meta.main)
snr1 37.2   Signal to noise ratio for W1 filter (stat.snr)
chi2W1 1.35e+00   Reduced χ2 of the W1 profile fit (stat.fit.chi2)
snr2 21.2   Signal to noise ratio for W2 filter (stat.snr)
chi2W2 9.74e-01   Reduced χ2 of the W2 profile fit (stat.fit.chi2)
snr3 10.0   Signal to noise ratio for W3 filter (stat.snr)
chi2W3 2.06e+00   Reduced χ2 of the W3 profile fit (stat.fit.chi2)
snr4 10.3   Signal to noise ratio for W4 filter (stat.snr)
chi2W4 1.07e+02   Reduced χ2 of the W4 profile fit (stat.fit.chi2)
chi2 1.01e+01  All-band combined reduced χ2 (stat.fit.chi2)
nb2   [1/4] Number of PSF components used simultaneously in the profile-fitting (meta.number)
na0   [0/1] Active deblending flag (1 if a detection was split into multiple sources) (meta.number)
sat1 0.000   Saturated pixel fraction in W1 (w1sat) (instr.saturation)
sat2 0.000   Saturated pixel fraction in W2 (w2sat) (instr.saturation)
sat3 0.000   Saturated pixel fraction in W3 (w3sat) (instr.saturation)
sat4 0.000   Saturated pixel fraction in W4 (w4sat) (instr.saturation)
ccfddDD   [0DHOPdhop] Contamination and confusion flag, one per band (cc_flags) (Note 2)   (meta.code)
ex1   [0-5] Extended source flag (ext_flg) (Note 3)   (meta.code)
var11nn  Variability flag, one per band (var_flg) (Note 4)   (meta.code;src.var)
nW1 29   Frame detection count in W1 (w1nm) (Note 5)   (meta.number)
mW1 29   Integer frame coverage in W1 (w1m) (Note 6)   (meta.number)
nW2 26   Frame detection count in W2 (w2nm) (Note 5)   (meta.number)
mW2 29   Integer frame coverage in W2 (w2m) (Note 6)   (meta.number)
nW3 7   Frame detection count in W3 (w3nm) (Note 5)   (meta.number)
mW3 13   Integer frame coverage in W3 (w3m) (Note 6)   (meta.number)
nW4 11   Frame detection count in W4 (w4nm) (Note 5)   (meta.number)
mW4 12   Integer frame coverage in W4 (w4m) (Note 6)   (meta.number)
satnum 0  Minimum sample at which saturation occurs in each band (instr.saturation)
RA_pm305.0452547 deg Right ascension at epoch MJD=55400.0 (2010.5589) from the profile-fitting measurement model that includes motion. (pos.eq.ra)
e_RA_pm 0.0680 arcsec Error on RA_pm (stat.error;pos.eq.ra)
DE_pm+16.7444057 deg Declination at epoch MJD=55400.0 (2010.5589) from the profile-fitting measurement model that includes motion. (pos.eq.dec)
e_DE_pm 0.0638 arcsec Error on DE_pm (stat.error;pos.eq.dec)
cosig_pm -0.0121 arcsec co-sigma of the equatorial position uncertainties (pos.posAng)
pmRA -1761 mas/yr Apparent motion in RA (Note 9)   (pos.pm)
e_pmRA 140 mas/yr Mean error on pmRA (Note 9)   (stat.error;pos.pm;pos.eq.ra)
pmDE -141 mas/yr Apparent motion in DE (Note 9)   (pos.pm)
e_pmDE 146 mas/yr Mean error on pmDE (Note 9)   (stat.error;pos.pm;pos.eq.dec)
chi2W1_pm 1.69e+00   Reduced χ2 of the W1 profile fit including motion estimation (stat.fit.chi2)
chi2W2_pm 1.03e+00   Reduced χ2 of the W2 profile fit including motion estimation (stat.fit.chi2)
chi2W3_pm 2.10e+00   Reduced χ2 of the W3 profile fit including motion estimation (stat.fit.chi2)
chi2W4_pm 1.06e+02   Reduced χ2 of the W4 profile fit including motion estimation (stat.fit.chi2)
chi2pm 1.02e+01   Combined reduced χ2 profile fit including motion estimation (stat.fit.chi2)
qpm2Y071   Motion estimation quality (pmcode) (Note 7)   (meta.code.qual)
qphAAAA   [ABCUXZ] Photometric quality flag (Note 8)   (meta.code.qual;phot)
fdet15   [0/15] Bit-encoded integer indicating bands in which a source has a w?snr>2 detection (meta.code)
fmoon 11  Scattered moonlight contamination flag (meta.code)
covW1 28.514   Mean pixel coverage in W1 (src.sample;stat.mean)
covW2 28.275   Mean pixel coverage in W2 (src.sample;stat.mean)
covW3 12.962   Mean pixel coverage in W3 (src.sample;stat.mean)
covW4 13.238   Mean pixel coverage in W4 (src.sample;stat.mean)
2Mkey 323348782   2MASS PSC association (not identification) (meta.id.assoc)
d2M 0.175 arcsec Distance separating the positions of the WISE source and associated 2MASS PSC source (pos;arith.diff)

2M2M  Display the 2MASS data (Cutri et al. 2003, Cat. II/246) (meta.ref.url)
  
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