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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/MNRAS/498/4033
  Extreme quasar X-ray variability (Timlin+, 2020)
Post annotation
img(gal)
1.J/MNRAS/498/4033/appenaQuasars with duplicate Chandra observations (table A1) (1972 rows) (released 2024-08-21)
[METAtab] [METAcola]

 
Query by Constraints constraints help applied on Columns (Output Order: + - ) [METAcola]
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Name (char) Object Name (HHMMSS.ssss+DDMMSS.ssss) (meta.id;meta.main)
  RAJ2000 deg (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  z  Redshift (Note 1)   (src.redshift)
  logNH [cm-2] log Galactic column density (Note 2)   (phys.columnDensity;pos.galactic)
  MJD d MJD of the Chandra observation (time.epoch;obs)
  imag mag Apparent i-band magnitude (phot.mag;em.opt.I)
  Ei mag Reddening in the i-band (Note 3)   (phot.color.excess)
  ObsID  Chandra observation ID (meta.id;obs)
  Theta arcmin Chandra off-axis angle (instr.offset)

ALL cols
    
 (i)indexed column
  Tefffull s Full-band effective exposure time (time.duration;obs.exposure)
  Pbsoft   [0/1] Binomial probability of detection (soft band) (stat.fit.goodness)
  Pbhard   [0/1] Binomial probability of detection (hard band) (stat.fit.goodness)
  Pbfull   [0/1] Binomial probability of detection (full band) (stat.fit.goodness)
  CTFull ct Net counts in the full band (phot.count;em.X-ray)
  E_CTFull ct One sigma upper limit on net counts (stat.error;stat.max)
  e_CTFull ct One sigma lower limit on net counts (stat.error)
  meanSRCExpf cm2.s Mean exposure map pixel value of the source region (stat.value;obs.field;stat.mean)
  meanBGExpf cm2.s Mean exposure map pixel value of the background region (instr.background;obs.field;stat.mean)
  ChipEdge   [0/1] Chip-edge flag (Note 4)   (meta.code)
  Tstart s Chandra start time (time.start)
  fbrightCl  (n) [0/1] Bright cluster flag (Note 5)   (meta.code)
  BALFlag  (n) [0/3] BAL flag (Note 6)   (meta.code)
  iMAG mag Absolute magnitude (corrected to z=2) (phys.magAbs)
  logL2500 [10-7W/Hz]Logarithm of the rest-frame monochromatic 2500Å luminosity (erg/s/Hz) (phys.luminosity)
  logF2500 [mW/m2/Hz]Logarithm of the rest-frame monochromatic 2500Å flux density (erg/cm2/s/Hz) (phot.flux)
  logR  Logarithm of the radio-loudness parameter, R (phot.flux;arith.ratio)
  SimbadName (char) (n)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-0.err (2025-04-17T02:10:12)
-2
-source=74984033
-ref=VIZ680063046b63a
elapse time 0

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


Contents of error file (/tmp/V-0.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=3.137.168.72
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=35600029
REMOTE_ADDR=130.79.128.30
REMOTE_PORT=40578
REQUEST_METHOD=GET
REQUEST_SCHEME=http
REQUEST_URI=/local/viz-bin/VizieR?-source=35600029
SCRIPT_FILENAME=/srv/httpd/local/cgi/VizieR
SCRIPT_NAME=/local/viz-bin/VizieR
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=35600029
################################################################

....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'):
[1744855812]   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'
[1744855812]   Select famid, name, explain From METAfam where famid=1373
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select ucdid, name, class, explain From METAucd where ucdid=193
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select famid, name, explain From METAfam where famid=391
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select ucdid, name, class, explain From METAucd where ucdid=191
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select famid, name, explain From METAfam where famid=1316
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select ucdid, name, class, explain From METAucd where ucdid=106
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select famid, name, explain From METAfam where famid=1281
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select ucdid, name, class, explain From METAucd where ucdid=9
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select famid, name, explain From METAfam where famid=581
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1744855812]   Select famid, name, explain From METAfam where famid=156
----db1_reset(0 'metaviz@VIZIR')
----inherit(u=used, h=hidden):
     [u] +source=74984033
     [u] -ref=VIZ680063046b63a
====inherit(): added 0 hidden fields
----free temporary files
----db1_close(0 'metaviz@VIZIR')
----db1_close(1 'metaviz@VIZIR')

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Rules of usage of VizieR data

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