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I/320/spm4 SPM 4.0 Catalog (Girard+, 2011)
Yale/San Juan Southern Proper Motion Catalog 4 (SPM4) (103319647 rows)
  -c=227.2069043 -28.4789110, eq=J2000, rs=2
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Note:

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (227.2069043-28.4789110)[FK5/J2000], at Epoch=J2000.0 (pos.angDistance)
_RAJ200015 08 49.657032 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-28 28 44.07960 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195015 05 49.642055 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-28 17 17.65939 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon336.221280754 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+25.369655970 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

SPMID5000000740  (i) Unique identifier (Note 4)   (meta.id;meta.main)
RAJ2000227.2069043 deg (i) Right ascension (ICRS, epoch=2000.0) (pos.eq.ra;meta.main)
e_RAJ2000 15.8 mas Error in right ascension at Epoch (stat.error;pos.eq.ra)
DEJ2000-28.4789110 deg (i) Declination (ICRS, epoch=2000.0) (pos.eq.dec;meta.main)
e_DEJ2000 15.6 mas Error in declination at Epoch (stat.error;pos.eq.dec)
pmRA -24.01 mas/yr Absolute proper motion in RA (*cos(DE)) (pos.pm;pos.eq.ra)
e_pmRA 2.92 mas/yr Error in pmRA at Epoch (stat.error;pos.pm;pos.eq.ra)
pmDE -12.68 mas/yr Absolute proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 3.21 mas/yr Error in pmDE at Epoch (stat.error;pos.pm;pos.eq.dec)
Epoch1980.45 yr [1965/2007] weighted mean epoch of observation (time.epoch;obs)
Ep11967.75 yr [1965/1982] weighted mean 1st-epoch (phys.atmol.wOscStrength;stat.mean)
Ep21989.76 yr [1987/2007] weighted mean 2nd-epoch (Note 2)   (phys.atmol.wOscStrength;stat.mean)
N1 3   [1/20] Number of 1st-epoch plates used (meta.number)
N2 3   [0/14] Number of 2nd-epoch plates used (meta.number)
Nc 0   [0/9] Number of 2nd-epoch CCD frames used (Note 3)   (meta.number)
Bmag 9.90 mag (i) Johnson B magnitude estimation (Note 1)   (phot.mag;em.opt.B)
Vmag 9.44 mag (i) Johnson V magnitude estimation (Note 1)   (phot.mag;em.opt.V)
ib2   [1/3] source flag for B mag (Note 1)   (meta.ref)
iv2   [1/3] source flag for V mag (Note 1)   (meta.ref)
Jmag 8.432 mag (i) 2MASS J magnitude (phot.mag;em.IR.J)
Hmag 8.263 mag (i) 2MASS H magnitude (phot.mag;em.IR.H)
Kmag 8.154 mag (i) 2MASS Ks magnitude (phot.mag;em.IR.K)

2M2M  Details from 2MASS catalogs (meta.ref.url)

igal0   [0/3] galaxy/extended-source flag (Note 5)   (src.class.starGalaxy)
icat2   [1/7] input catalog source flag (Note 6)   (meta.code.error;meta.table)

AA  Details from astrometric catalogs UCAC / Tycho-2 (meta.ref.url)
  
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