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VizieR

  
J/ApJ/831/102
  Swift and NuSTAR obs. of the BL Lac Mrk 421 (Kapanadze+, 2016)
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2016ApJ...831..102K
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1.J/ApJ/831/102/table3Summary of intra-day X-ray variabilities (IDVs) from the XRT and NuSTAR observations (47 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))
  Fac (char) Facility identifier (NuSTAR or XRT) ((unassigned);(unassigned))
  obsID (char) Observation identifier ((unassigned);(unassigned);(unassigned))
  Dur h [0.4/23.5] Observed duration ((unassigned))
  chi2   [1/460] Reduced {Chi}2 of fit ((unassigned))
  DOF   [4/392] Degrees of Freedom in fit ((unassigned))
  Bin s [30/120] Bin width ((unassigned))
  Fvar % [1/47.5] Fraction rms variability amplitude ((unassigned);(unassigned);(unassigned))
  e_Fvar % [0.06/5.2] Uncertainty in Fvar ((unassigned))
  Dela1  (n) [1.6/3.2] Range of photon index at 1keV; first orbit ((unassigned))
  e_Dela1  (n) [0.01/0.2] Uncertainty in Dela1 ((unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Dela2  (n) [0.2/3.1] Range of photon index at 1keV; second orbit ((unassigned))
  e_Dela2  (n) [0.01/0.05] Uncertainty in Dela2 ((unassigned))
  Delb1  (n) [-0.3/0.5] Curvature parameter; first orbit ((unassigned))
  e_Delb1  (n) [0.01/0.2] Uncertainty in Delb1 ((unassigned))
  Delb2  (n) [0.1/0.6] Curvature parameter; second orbit ((unassigned))
  e_Delb2  (n) [0.02/0.2] Uncertainty in Delb2 ((unassigned))
  DelEp1 keV (n) [0.001/10] Position of synchrotron SED; first orbit ((unassigned))
  e_DelEp1 keV (n) [0.002/2.2] Uncertainty in DelEp1 ((unassigned))
  DelEp2 keV (n) [0.04/10] Position of synchrotron SED; second orbit ((unassigned))
  e_DelEp2 keV (n) [0.01/2.4] Uncertainty in DelEp2 ((unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  

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

.errorfile=/tmp/VR3032169.err (2026-08-13T04:58:18)
-3
-source=J/ApJ/831/102/table3
-ref=VIZ6a7d4eea2e4469
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