Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
I/325
  Radio-optical reference frame link (Zacharias+ 2013)
ReadMe+ftp
2013yCat.1325....0Z
Similar Catalogs
[METAcat] [METAcells] [stats]
Post annotation 		img(gal)
1.I/325/icrf-u2(c)Results from UCAC2-type reductions of ICRF optical counterparts (sample in table 4 of paper) (666 rows) (released 2017-09-29)
[METAtab] [METAcola]
2.I/325/icrf-u4(c)Results from UCAC4-type reductions of ICRF optical counterparts (sample in table 5 of paper) (682 rows) (released 2017-09-29)
[METAtab] [METAcola]
Help Xmatch is

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)RAJ2000 "h:m:s" (i) Right Ascension ICRS (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Declination ICRS (pos.eq.dec;meta.main)
   (ALL)Dist mas [0/1821] Distance between the optical and radio positions (pos.angDistance)
   (ALL)dRA* mas Distance(optical-radio) in RA*cos(Dec) (pos.eq.ra;arith.diff)
   (ALL)dDec mas Distance(optical-radio) in Dec (pos.eq.dec)
   (ALL)eRA mas [4/250] total, formal error of optical position (RA*cos(Dec)) (stat.error;spect.dopplerVeloc.opt;em.opt)
   (ALL)eDE mas [4/250] total, formal error of optical position (Dec) (stat.error;spect.dopplerVeloc.opt;em.opt)
   (ALL)sRA  ratio dRA*/eRA (position difference in RA in σs) (stat.fit.goodness)
   (ALL)sDE  ratio dDE/eDE (position difference in Dec in σs) (stat.fit.goodness)
   (ALL)eRad mas (n) error of radio position (per coordinate) (stat.error;spect.dopplerVeloc.radio;em.radio)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)Nccd  number of deep CCD exposures used (meta.number)
   (ALL)Nr*  average number of reference stars per deep exposure used (meta.number)
   (ALL)Nrx  average number of reference stars excluded (meta.number)
   (ALL)err  mean "plate" solution error of individual deep CCD exposures (stat.error)
   (ALL)S/N   [1/1639] Approximate signal/noise ratio of target on individual deep CCD (stat.snr;instr.det)
   (ALL)mag mag (n) Optical brightness from LQAC-2 (J/A+A/537/A99) (phot.mag;em.opt)
   (ALL)z  (n) [0/5] Redshift from LQAC-2 (J/A+A/537/A99) (src.redshift)
   (ALL)T   [0/3] Object type: 0=unknown, 1=AGN, 2=BL-Lac, 3=QSO (from Veron's 13th ed. (VII/258) (src.class)
   (ALL)S  (n) [0.8/7.2] Radio X-band (8-12GHz) structure index from Bordeaux database: 1=very good, 2=good, 3=use with caution, 4=unacceptable (meta.code.qual)
   (ALL)U   [2/4] UCAC-type reductions (2 or 4) (meta.id;meta.dataset)
   (ALL)Rname (char) B1950 coordinate based name of target (meta.id;meta.main)
   (ALL)R  (n)Number of results for this source with UCAC2- and UCAC4-type reductions (meta.number)
   (ALL)Run (char) [abo-zJ] Code of deep CCD observing run (Note 1)   (meta.code;instr.det)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)n_Run (char) [rc] Type of target: r=regular target, c=also used as calibration field (meta.note)
   (ALL)Q (char) [ufplgn] Quality letter of optical image (Note 2)   (meta.code.qual;spect.dopplerVeloc.opt;em.opt)
   (ALL)M  (n)Existence in Vérons' catalogue (VII/258) and/or LQAC-2 (J/A+A/537/A99) within 3arcsec (meta.ref.url)
   (ALL)Notes (char) Remarks; if a double the separation (pixel) and flux ratio (source/companion) is given (meta.number)
   (ALL)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
.errorfile=/tmp/V-3.err (2025-04-18T00:49:09)
-3
-source=I/325
-ref=VIZ6801a1858df41
elapse time 0

Options: wopt=0, optS=0, onote=0, opt1=8, opos=0

Contents of error file (/tmp/V-3.err):
CDSportal=http://cdsportal.u-strasbg.fr/StoreVizierData.html
COCAT=130.79.128.31
COCATPORT=1801
CONTEXT_DOCUMENT_ROOT=/srv/httpd/local/cgi/
CONTEXT_PREFIX=/local/viz-bin/
Content=text/html
DOCKER=yes
DOCUMENT_ROOT=/srv/httpd/Pages/
GATEWAY_INTERFACE=CGI/1.1
GLUDIR=/srv/glu
GLUHOME=/srv/glu
GROUP=root
HOME=/srv/httpd
HOST=9e180a4339b6
HOSTTYPE=x86_64-linux
HTTP_ACCEPT=*/*
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
HTTP_CONNECTION=Keep-Alive
HTTP_HOST=cds:8082
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
HTTP_X_FORWARDED_FOR=3.147.84.138
HTTP_X_FORWARDED_HOST=viz-beta.u-strasbg.fr
HTTP_X_FORWARDED_SERVER=viz-beta.u-strasbg.fr
LC_ALL=C
LD_LIBRARY_PATH=/srv/httpd/../lib:/srv/lib:/usr/local/lib:/usr/lib
LOGNAME=root
MACHTYPE=x86_64
METADB=metaviz@VIZIR asu asu4VizieR
MOCCMD=mocset query /srv/httpd/mocs/mocset10.bin cone -p 5 
NEWS=/VizieR/+news.htx
OSTYPE=linux
PATH=/srv/httpd/bin:/usr/local/bin:/usr/bin:/bin
PATH_INFO=/
PWD=/srv/httpd/cgi
QMOCCMD=.ext-tsv/qat2s_asu --out.form tsv --noheader --out.max=999999999 --source=%s --moc=%s --out='!/_((RA)|(DE))J2000|recno/'
QUERY_STRING=-source=I%2F251
REMOTE_ADDR=130.79.128.30
REMOTE_PORT=53982
REQUEST_METHOD=GET
REQUEST_SCHEME=http
REQUEST_URI=/local/viz-bin/VizieR-3?-source=I%2F251
SCRIPT_FILENAME=/srv/httpd/local/cgi/VizieR-3
SCRIPT_NAME=/local/viz-bin/VizieR-3
SERVER_ADDR=172.17.0.2
SERVER_ADMIN=gilles.landais@astro.u-strasbg.fr
SERVER_NAME=cds
SERVER_PORT=8082
SERVER_PROTOCOL=HTTP/1.1
SERVER_SIGNATURE=
SERVER_SOFTWARE=Apache/2.4.57 (Unix)
SESAME_SERVER=glu
SHLVL=1
USER=root
VENDOR=unknown
VSEARCH_HOST=cdsarc.cds.unistra.fr
VSEARCH_REDIRECT=http://cdsarc.cds.unistra.fr
Vaccess=*
Vprog=/srv/httpd/bin/vizier
Vprog_ls=-rwxr-xr-x 1 root root 963736 Apr 10 15:32 /srv/httpd/bin/vizier
Vroot=/srv/httpd

################################################################
....(in): -source=I/251
################################################################

....Trying '/srv/httpd/interfaces' => OK
....Trying '/srv/httpd/interfaces' => 3
....db1_interfaces(/srv/httpd/interfaces)
----db1_open(metaviz@VIZIR) gives: 0
----Open server: 130.79.128.5, port 5432 (type postgres base vizier)
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAdba'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAtab'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAcol'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAcat'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAmor'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAdic'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAdig'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAfam'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAucd'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select      METAcol.name as name, METAcol.dbname as dbname, METAcol.length as length      from METAcol, METAtab      where METAcol.catid=0 and METAtab.catid=0 and METAcol.tabid = METAtab.tabid      and METAtab.name = 'METAauth'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select MAX(dbaid) as nlogins from METAdba
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select MAX(famid) as mUCD1 from METAfam
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select hstid, flag from METAhst where name='9e180a4339b6.astro.unistra.fr'
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select authid, name From METAauth where authid=0
++++status=3 0
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select name, catid, title, kslot, explain, status, popu, authid, bibcode, flags, doi, orcid, authors From METAcat where catid=1323 and (authid=0)
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select name, dbname, catid, tabid, flags, equinox, epoch, explain, dbaid, cooframe, release, records, notid, comment, status, cooprec, morexplain From METAtab Where catid=1323 order by tabid
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select name, dbname, catid, tabid, flags, equinox, epoch, explain, dbaid, cooframe, release, records, notid, comment, status, cooprec, morexplain From METAtab where name = 'METApop' and catid in (select catid from METAcat where catid=METAtab.catid and (authid=0))
----db1_reset(0 'metaviz@VIZIR')
----db1_open(metaviz@VIZIR) gives: 1
----Open server: 130.79.128.5, port 5432 (type postgres base vizier)
----db1_query(1 'metaviz@VIZIR'):
[1744937349]   SELECT max(popu) as Ncalls FROM METAcat where catid!=0
----db1_close(1 'metaviz@VIZIR')
++++popularity(all): 6.73243e+06 => 6.83
++++popularity(catid=1323): 23478 => 0.64
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select idori, kwdid, name, explain From METAorigin
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=412
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=900
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=81
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=314
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=362
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=26
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=248
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=112
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=741
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=321
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=1247
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=299
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=97
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=68
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=109
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=74
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=70
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=162
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=179
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=62
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=339
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=80
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=313
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select ucdid, name, class, explain From METAucd where ucdid=84
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=530
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744937349]   Select famid, name, explain From METAfam where famid=156
----db1_reset(0 'metaviz@VIZIR')
----opt1= 8
----inherit(u=used, h=hidden):
     [u] +source=I/325
     [u] -ref=VIZ6801a1858df41
====inherit(): added 0 hidden fields
----free temporary files
----db1_close(0 'metaviz@VIZIR')
→ Cite/acknowledge VizieR catalogue
→ Rules of usage of VizieR data

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