VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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/AJ/131/1872
  Fourth VLBA calibrator survey: VCS4 (Petrov+, 2006)
ReadMe+ftp
2006AJ....131.1872P
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/131/1872/table2The VCS4 catalog (292 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. ((unassigned);(unassigned);(unassigned);phys.veloc)
  Cat (char) [-C] Category (where C = calibrator) ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec)
  IVS (char) The IVS name (B1950), BHHMM-DDd ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  VCS4 (char) The IAU name (J2000), JHHMM-DDMM ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc;arith)
  RAJ2000 "h:m:s" Hour of Right ascension (J2000) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  e_RAJ2000 mas Inflated error in Right Ascension ((unassigned);phys.veloc.orbital;arith.diff;time.age;(unassigned))
  DEJ2000 "d:m:s" Degree of Declination (J2000) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  e_DEJ2000 mas Inflated error in Declination ((unassigned);phys.veloc.orbital;arith.diff;time.age;(unassigned))
  Corr  Correlation between Right Ascension and Declination errors ((unassigned);phys.veloc.orbital;arith.diff;stat.median;meta.main)
  Nobs  Number of group delays used for position determination ((unassigned);phys.veloc.orbital;arith.diff;src.var)
  l_T8.6GHz (char) Upper limit flag on T8.6GHz ((unassigned);phys.veloc.orbital;arith.diff;pos.galactic.lon)
  T8.6GHz Jy (n) X-band (8.6GHz) total flux density integrated over entire map (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  l_U8.6GHz (char) Upper limit flag on U8.6GHz ((unassigned);phys.veloc.orbital;arith.diff;pos.galactic.lon)
  U8.6GHz Jy (n) X-band (8.6GHz) unresolved flux density at longest VLBA baselines (Note 1)   ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  l_T2.3GHz (char) Upper limit flag on T2.3GHz ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  T2.3GHz Jy (n) S-band (2.3GHz) total flux density integrated over entire map (Note 1)   ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  l_U2.3GHz (char) Upper limit flag on U2.3GHz ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  U2.3GHz Jy (n) S-band (2.3GHz) unresolved flux density at longest VLBA baselines (Note 1)   ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  Band (char) Used band for position estimation (Note 2)   ((unassigned);(unassigned);(unassigned);instr.spect)

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  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846458846 Where phase=3 and catid=51311872
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR536225.err (2026-10-27T23:27:25)
-3
-source=J/AJ/131/1872
-ref=VIZ6ae1335e82ea1
elapse time 1