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

  
J/A+A/371/833
  ROSAT Ultra Deep Survey (Lehmann+, 2001)
ReadMe+ftp
2001A&A...371..833L
Similar Catalogs
[METAcat] [METAcells] [stats]
Post annotation 		img(gal)
1.J/A+A/371/833/table3(c)X-ray source catalogue (94 rows) (released 2003-01-28)
[METAtab] [METAcola]
2.J/A+A/371/833/table4(c)Photometric and spectroscopic properties of optical counterparts (94 rows) (released 2003-01-28)
[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)Link (char) Show X-ray properties, and optical counterpart (meta.ref)
  (1)RXJ (char) Source name (meta.id;meta.main)
  (1)Seq  Internal source number (meta.id)
  (1)n_Seq (char) [(H P12)] Sample (Note 1)   (meta.note)
   (ALL)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)e_Pos arcsec 1-Sigma error of the source position (stat.error)
  (1)n_Pos (char) [HPR] Source position origin (Note 2)   (meta.note)
  (1)offHRI arcmin Distance of the source from the center of the HRI field (instr.offset)
  (1)offPSPC arcmin Distance of the source from the center of the PSPC field (instr.offset)

ALL cols		    
 (i)indexed column
  (1)FHRI 10-17W/m2(n) HRI flux in the 0.5-2.0keV band (phot.flux;em.X-ray)
  (1)e_FHRI 10-17W/m2(n) HRI flux error (stat.error)
  (1)FPSPC 10-17W/m2(n) PSPC flux in the 0.5-2.0keV band (phot.flux;em.X-ray)
  (1)e_FPSPC 10-17W/m2(n) PSPC flux error (stat.error)
  (1)HR1  (n) HR1 hardness ratio (Note 3)   (phot.flux;arith.ratio)
  (1)e_HR1  (n) Error of HR1 (stat.error)
  (2)Name (char) Name of optical counterpart (meta.id;meta.main)
  (2)Rmag mag R magnitude (phot.mag;em.opt.R)
  (2)DeltaPos arcsec Distance to the X-ray source position (pos.angDistance)
  (2)n_DeltaPos (char) [HPR] Source position origin (Note 1)   (meta.note)
  (2)SX 10-17W/m2HRI or PSPC flux in the 0.5-2.0keV energy band (phot.flux;em.X-ray)
  (2)log(FX/Fo)  Logarithm of the X-ray to optical flux ratio (phot.flux;arith.ratio)
  (2)G (char) [sg] Optical morphological parameter (Note 2)   (src.class.starGalaxy)
  (2)z  (n) Redshift (Note 3)   (src.redshift)
  (2)VMAG mag (n) Absolute V magnitude (phys.magAbs;em.opt)
  (2)logLX [10-7W] (n) Logarithm of the 0.5-2.0keV X-ray luminosity (phys.luminosity;em.X-ray)
  (2)R-K' mag (n) R-K' colour index (phot.color;em.opt.R;em.IR.K)
  (2)Class (char) Optical classification (Note 4)   (src.class)
  (2)IDclass (char) Classification scheme (Note 5)   (meta.code.class)

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 (2025-08-25T05:43:07)
-3
-source=J/A+A/371/833
-ref=VIZ68abf7ebf910b
elapse time 1

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=b448cffa3102
HOSTTYPE=x86_64-linux
HTTP_ACCEPT=*/*
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
HTTP_CACHE_CONTROL=max-age=0
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_VIA=1.1 squid-proxy-5b5d847c96-l5qcg (squid/6.10)
HTTP_X_FORWARDED_FOR=10.3.175.99, 216.73.216.136
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=J%2FApJ%2F519%2F533
REMOTE_ADDR=130.79.128.30
REMOTE_PORT=53720
REQUEST_METHOD=GET
REQUEST_SCHEME=http
REQUEST_URI=/local/viz-bin/VizieR-3?-source=J%2FApJ%2F519%2F533
SCRIPT_FILENAME=/srv/httpd/local/cgi/VizieR-3
SCRIPT_NAME=/local/viz-bin/VizieR-3
SERVER_ADDR=172.17.0.3
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 Jun 11 08:12 /srv/httpd/bin/vizier
Vroot=/srv/httpd

################################################################
....(in): -source=J/ApJ/519/533
################################################################

....Trying '/srv/httpd/interfaces' => OK
....Trying '/srv/httpd/interfaces' => 3
....db1_interfaces(/srv/httpd/interfaces)
----opt1= 8
----inherit(u=used, h=hidden):
     [u] +source=J/A+A/371/833
     [u] -ref=VIZ68abf7ebf910b
====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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