Table information for 'twomass.data'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: The 2MASS Point Source Catalogue, short a couple of exotic fields. We provide this data mainly for matching with other catalogs within our TAP service.

For a list of all services and tables belonging to this table's resource, see Information on resource 'The 2MASS point source catalog'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:twomass_data,
  year=2008,
  title={The {2MASS} point source catalog},
  author={{GAVO} Data Center},
  url={http://dc.zah.uni-heidelberg.de/tableinfo/twomass.data},
  howpublished={{VO} resource provided by the {GAVO} Data Center}
}

Fields

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
"date" Obs. date Observation date yr time.epoch;obs
Aflg solar system flag Association with asteroid or comet N/A meta.code
Bflg blend flag JHK blend flag [Note b] N/A meta.code
Cflg confusion contamination Contamination and confusion flag [Note c] N/A meta.code
DEJ2000 DEC (J2000) Declination (J2000) deg pos.eq.dec;meta.main
dup Duplicity Flag indicating duplicate source N/A meta.code
e_Hmag Err(m_H) 2MASS H total magnitude uncertainty mag stat.error;phot.mag;em.IR.H
e_Jmag Err(m_J) 2MASS J total magnitude uncertainty mag stat.error;phot.mag;em.IR.J
e_Kmag Err(m_K) 2MASS K_s total magnitude uncertainty mag stat.error;phot.mag;em.IR.K
edge Edge flag flag indicating to which edges the edgeNS and edgeEW values refer N/A pos.cartesian;instr.det
edgeEW d(EW edge) Distance from the source to the nearest East or West scan edge deg pos;arith.diff
edgeNS d(NS edge) Distance from the source to the nearest North or South scan edge deg pos;arith.diff
errMaj Err(pos)_major Major axis of position error ellipse deg stat.error;pos.eq
errMin Err(pos)_minor Minor axis of position error ellipse deg stat.error;pos.eq
errPA PA(err. ellipse) Position angle of error ellipse major axis (E of N) deg stat.error;pos.eq
Hcmsig Err'(m_H) H default magnitude uncertainty mag stat.error;phot.mag;em.IR.H
Hmag m_H 2MASS H magnitude mag phot.mag;em.IR.H
Hsnr SNR(H) H Signal-to-noise ratio N/A stat.snr;phot.mag;em.IR.H
Jcmsig Err'(m_J) J default magnitude uncertainty mag stat.error;phot.mag;em.IR.J
JD JD Julian date of detection d time.epoch
Jmag m_J 2MASS J magnitude mag phot.mag;em.IR.J
Jsnr SNR(J) J Signal-to-noise ratio N/A stat.snr;phot.mag;em.IR.J
Kcmsig Err'(m_K) magnitude uncertainty mag stat.error;phot.mag;em.IR.K
Kmag m_K 2MASS K_s magnitude mag phot.mag;em.IR.K
Ksnr SNR(K) K Signal-to-noise ratio N/A stat.snr;phot.mag;em.IR.K
mainid Cat. Id Source designation N/A meta.id;meta.main
pts_key key Unique source identifier in catalogue [Note p] N/A meta.id;meta.table
Qflg Phot. quality JHK photometric quality flag [Note q] N/A meta.code.qual;phot
RAJ2000 RA (J2000) Right ascension (J2000) deg pos.eq.ra;meta.main
Rflg Qual. source JHK default magnitude read flag [Note r] N/A meta.ref
Scan Scan number Scan number (within date) N/A obs.field
use_src Use Use source flag N/A meta.code
Xflg ext. src contamination Extended source contamination N/A meta.code
Xscan d(plate center) Distance of source from focal plane centerline deg pos.cartesian;instr.det

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes