VizieR

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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/ApJS/237/30
  6-yr light curves of 10 blazars (Meng+, 2018)
ReadMe+ftp
2018ApJS..237...30M
Similar Catalogs
timeSerie
Post annotation 		img(gal)
1.J/ApJS/237/30/blazars(c)Observation details of the 10 objects (table 2) and Galactic extinction in each band (table 4)[timeSerie] (36 rows)
2.J/ApJS/237/30/lcLight curves for all 36 observations of the blazars (compilation from the separated files in apjsaacffet3_mrt.tar.gz, by CDS) (14916 rows)

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. ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc)
  (1)Name (char) Blazar name ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc;arith)
  (1)n_Name  (n) [1/2] Phase number ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  (1)RAJ2000 "h:m:s" Hour of right ascension (J2000) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  (1)DEJ2000 "d:m:s" Degree of declination (J2000) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (1)z   [0.03/0.9] Redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (1)Type (char) Blazar type (flat-spectrum radio quasar or BL Lac object with high-, intermediate-, or low-frequency-peak) ((unassigned);(unassigned);(unassigned);phys.atmol.sweight;meta.main)
   (ALL)Band (char) Observation band (see the "Description" section above for the central wavelengths) ((unassigned);(unassigned);(unassigned);meta.ref.url;stat.median)
  (1)Stdate "Y:M:D" (n)Start UT date ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);meta.main)
  (1)Enddate "Y:M:D" (n)End UT date ((unassigned);(unassigned);(unassigned);(unassigned);meta.main)
  (1)Nd   [5/248] Number of observing days ((unassigned);(unassigned);(unassigned);src.var)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Ndata   [23/1790] Number of measurements ((unassigned);(unassigned);(unassigned);src.var)
  (1)Np  (n)Number of photometry measurements for this blazar (link to lc) ((unassigned);phys.veloc.orbital;arith.diff;src.var)
  (1)Ac mag (n) [0.08/1.3] c-band extinction ((unassigned);phys.veloc.orbital;arith.diff;phys.dust)
  (1)Ae mag (n) [0.06/1.1] e-band extinction (time.equinox;(unassigned);arith.factor;phys.dust)
  (1)Ai mag (n) [0.04/0.7] i-band extinction ((unassigned);(unassigned);(unassigned);phys.dust)
  (1)Am mag (n) [0.03/0.5] m-band extinction ((unassigned);(unassigned);(unassigned);phys.dust)
  (1)Ao mag (n) [0.02/0.4] o-band extinction ((unassigned);pos.wcs.naxis;arith.grad;phys.dust)
   (ALL)AName (char) (i) Abbreviated name as used in lc.dat; column added by CDS ((unassigned);stat.error;arith.factor;spect.line.veloc)
  (1)LC (char) Interactive Plot ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (1)Simbad (char) ask the Simbad data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (1)NED (char) ask the NED data-base about this object ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (2)Obs s (n)UT observation date ((unassigned);(unassigned);(unassigned);pos.centroid;stat.param)
  (2)JD d Julian Observation date ((unassigned);phys.veloc.orbital;arith.diff;pos.centroid;meta.main)
  (2)Exp s [20/900] Exposure time ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);meta.main)
  (2)mag mag [0.3/17.8] Observation magnitude in Band ((unassigned);(unassigned);(unassigned);stat.filling)
  (2)e_mag mag [0/0.5] Uncertainty in mag ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)
  (2)dfmag mag [-0.3/0.7] Differential magnitude of the check star ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;instr.background)

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:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846444920 Where phase=3 and catid=22370030
**** 
**** --POSTGRES MSG db=0
**** 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 
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846444920 Where phase=3 and catid=22370030
**** 
**** --POSTGRES MSG db=0
**** 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/VR225541.err (2026-10-27T19:35:19)
-3
-source=J/ApJS/237/30
-ref=VIZ6ae0fcf737105
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