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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/A+A/490/641
  X-ray sources toward NGC 2808 (Servillat+, 2008)
ReadMe+ftp
2008A&A...490..641S
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/490/641/table1Detected Chandra sources in the direction of NGC 2808 (113 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))
  [SDW2008]  Sequential number ((unassigned))
  Det (char) [wh] Detection method (WAVDETECT or by hand) ((unassigned))
  XMM (char) XMM-Newton ID linkRole{data from Servillat et al. 2008, Cat. J/A+A/480/397} (Note 1)   ((unassigned))
  RAJ2000 "h:m:s" Right ascension (J2000) ((unassigned);(unassigned))
  DEJ2000 "d:m:s" Declination (J2000) ((unassigned);(unassigned))
  Error arcsec 1sigma detection positional error ((unassigned))
  Cts ct Number of X-ray counts ((unassigned);(unassigned))
  FluxC 10-17W/m2Chandra flux (10–14erg/cm2/s) ((unassigned);(unassigned))
  e_FluxC 10-17W/m2rms uncertainty on Chandra flux ((unassigned))
  FluxX 10-17W/m2(n) XMM flux (10–14erg/cm2/s) ((unassigned);(unassigned))
  e_FluxX 10-17W/m2(n) rms uncertainty on XMM flux ((unassigned))
  HRC  Chandra hardness ratio (Note 2)   ((unassigned);(unassigned))
  e_HRC  rms uncertainty on Chandra hardness ratio ((unassigned))
  HRX  (n) XMM hardness ratio (Note 2)   ((unassigned);(unassigned))
  e_HRX  (n) rms uncertainty on XMM hardness ratio ((unassigned))
  NH 10+22cm-2 [0.12] Absorption column density best fit ((unassigned);(unassigned))
  PH  Power law of photon index best fit ((unassigned))
  KS  Kolmogorov-Smirnov probability of constancy ((unassigned))

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:
**** 
**** -- no connection
**** Report from: stdb_pg,     Status: STDB_ERR 
****Postgres connect error
**** 
**** -- no connection
**** Report from: stdb_pg_conn,     Status: STDB_ERR 
****Couldn't connect with server
**** 
**** -- no connection
**** Report from: stdb_conn_dbms,     Status: STDB_ERR 
****No server is available for connection
****Bad db number: -1
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
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****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
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****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
****Bad db number: -1
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****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
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****Bad db number: -1
****Bad db number: -1
****Bad db number: -1
****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
****Bad db number: -1
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****Bad db number: -1
****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
****Bad db number: -1
****Bad db number: -1
****Bad db number: -1
****Bad db number: -1
****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
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****Bad db number: -1
****Bad db number: -1
****db1_relink(0): connection was not opened
****db1_relink(-1): connection was not opened
****Bad db number: -1
****Bad db number: -1
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****Bad db number: -1
****Bad db number: -1
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR1832255.err (2026-08-12T20:19:58)
-3
-source=J/A+A/490/641
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