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I/339/hsoy Hot Stuff for One Year (HSOY) (Altmann+, 2017)
The HSOY catalogue (583001653 sources) (original column names in green) (583001653 rows)
  -c=240.6738240896 -51.7646251614, eq=J2000, rs=2
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Note:

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (240.6738240896-51.7646251614)[FK5/J2000], at Epoch=J2000.0 (pos.angDistance)
_RAJ200016 02 41.717781504 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-51 45 52.65058104 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195015 58 54.538742362 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-51 37 34.28182371 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon330.229670697324 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+00.671690790719 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

raj2000240.6738240896 deg (i) Right ascension, J2000.0, at epoch 2000 (raj2000) (pos.eq.ra;meta.main)
dej2000-51.7646251614 deg (i) Declination, J2000.0, at epoch 2000 (dej2000) (pos.eq.dec;meta.main)
ipix5930827536748955509  (i) PPMXL object identifier (ipix) (Note 1)   (meta.id;meta.main)
comp    [0/4] Disambiguation counter (where multiple DR1 objects match one PPMXL object) (comp) (Note 1)   (meta.code.multip)
e_ra 0.627 mas Mean error: RA*cos(DE) at mean epoch EpRA (e_ra) (stat.error;pos.eq.ra)
e_de 0.404 mas Mean error: DE at mean epoch EpDE (e_de) (stat.error;pos.eq.dec)
pmra -2.518 mas/yr Proper motion in RA, pmRA*cos(DE) (pmra) (pos.pm;pos.eq.ra)
pmde -2.494 mas/yr Proper motion in DE (pmde) (pos.pm;pos.eq.dec)
e_pmra 3.040 mas/yr Mean error in pmRA (e_pmra) (stat.error;pos.pm;pos.eq.ra)
e_pmde 3.040 mas/yr Mean error in pmDE (e_pmde) (stat.error;pos.pm;pos.eq.dec)
epra2015.00 yr Mean Epoch in right ascension (epra) (time.epoch;pos.eq.ra)
epde2015.00 yr Mean Epoch in declination (epde) (time.epoch;pos.eq.dec)
jmag15.731 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
e_jmag 0.090 mag error of 2MASS Jmag (e_jmag) (stat.error;phot.mag;em.IR.J)
hmag14.075 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
e_hmag  mag error of 2MASS Hmag (e_hmag) (stat.error;phot.mag;em.IR.H)
kmag13.854 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
e_kmag  mag error of 2MASS Kmag (e_kmag) (stat.error;phot.mag;em.IR.K)
b1mag  mag USNO-B, 1st epoch B magnitude (b1mag) (phot.mag;em.opt.B)
b2mag20.11 mag USNO-B, 2nd epoch B magnitude (b2mag) (phot.mag;em.opt.B)
r1mag17.73 mag USNO-B, 1st epoch R magnitude (r1mag) (phot.mag;em.opt.R)
r2mag18.07 mag USNO-B, 2nd epoch R magnitude (r2mag) (phot.mag;em.opt.R)
imag17.32 mag USNO-B I magnitude (imag) (phot.mag;em.opt.I)
surveys    Origin of USNO-B magnitudes (surveys) (Note 2)   (meta.bib)
nobs 6   Total number of astrometric observations (n_PPMXL+1) (nobs) (meta.number)
GaiaId5981455302209922688  (i) Gaia unique source identifier (gaia-id) (meta.id)
Gmag18.157 mag (i) Mean Gaia G-band magnitude (Gmag) (phot.mag;em.opt.V)
e_Gmag 0.003 mag estimated error of Gaia Gmag (e_Gmag) (stat.error;phot.mag;em.opt.B)
clone    [1] 1 if more than one PPMXL match to this Gaia object (clone) (meta.code)
no_sc    [1] 1 if object not in SuperCOSMOS within 3" (no_sc) (meta.note)
  
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