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

  
V/153
  LAMOST DR4 catalogs (Luo+, 2018) Query spectra/fits /fits
ReadMe+ftp
2018yCat.5153....0L
Similar Catalogs
spectrum/fits
Post annotation 		img(gal)
1.V/153/dr4LAMOST DR4 catalog (09/08/2018 version)[spectrum/fits] (7620612 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. (meta.record)
  sp  Show the spectrum (meta.ref.url)
spectrum/fits
  ObsID   [101001/462816250] Observation ID (meta.id)
  Target (char) (i) Target Designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  Obs.Date "Y:M:D" (n)Target Observation Date (time.epoch;obs)
  LMJD   [55859/57542] Local Modified Julian Day (time.epoch)
  MJD   [55858/57541] Modified Julian Day (time.epoch)
  PlanId (char) Plan Name (obs.field)
  spId   [1/16] Spectrograph ID (meta.id;instr)
  FiberId   [1/250] Fiber ID (meta.id)
  RAJ2000 deg (i) Fiber pointing right ascension (J2000) (pos.eq.ra;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  DEJ2000 deg (i) Fiber pointing declination (J2000) (pos.eq.dec;meta.main)
  snru  (n) Signal Noise Ratio of u filter (stat.snr)
  snrg  (n) Signal Noise Ratio of g filter (stat.snr)
  snrr  (n) Signal Noise Ratio of r filter (stat.snr)
  snri  (n) Signal Noise Ratio of i filter (stat.snr)
  snrz  (n) Signal Noise Ratio of z filter (stat.snr)
  objType (char) Object Type (src.class)
  Class (char) Spectra Type (src.class)
  SubClass (char) Stellar Sub-Class (src.class)
  z  (n) Redshift (src.redshift)
  e_z  (n) []? rms uncertainty on z (stat.error;src.redshift)
  magType (char) Target Magnitude Type (meta.note)
  mag1  (n) Magnitude in Band 1 of magType (phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  mag2  (n) Magnitude in Band 2 of magType (phot.mag)
  mag3  (n) Magnitude in Band 3 of magType (phot.mag)
  mag4  (n) Magnitude in Band 4 of magType (phot.mag)
  mag5  (n) Magnitude in Band 5 of magType (phot.mag)
  mag6  (n) Magnitude in Band 6 of magType (phot.mag)
  mag7  (n) Magnitude in Band 7 of magType (phot.mag)
  tsource (char) Organization or person who submits input catalog (meta.curation)
  FiberType (char) Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) (meta.note)
  tfrom (char) Input catalog submitted by an organization or a person determined by the tsource (obs.observer)
  tInfo (char) Target ID from SDSS, UCAC4, PANSTAR and other catalogue (meta.bib)
  n_offset   [0/1] Whether there is a fiber offset during observation (meta.note)
  offset arcsec [0/99] If offset is true, it gives the offset distance from the target's coordinator in input catalog (pos.angDistance;arith.diff)
  RA1deg  Rigth ascension from input catalog (J2000) (pos.eq.ra)
  DE1deg  Declination from input catalog (J2000) (pos.eq.dec)
  AssocData (char) Associated Data web page (meta.ref.url)
  FileName (char) FITS files name (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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