VizieR

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

VizieR

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V/153/dr4 LAMOST DR4 catalogs (Luo+, 2018)
LAMOST DR4 catalog (09/08/2018 version)
spectrum/fits
(7620612 rows)
  recno=3177839
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ColumnValue  Explain   (UCD)
_RAJ200007 07 37.761600000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+48 41 13.84800000 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195007 03 51.027642633 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+48 45 57.30810829 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon168.427199079466 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+22.579900228416 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
3177839recno 3177839  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
spplot  Show the spectrum (meta.ref.url)

ObsID181612135   [101001/462816250] Observation ID (meta.id)
TargetJ070737.76+484113.8  (i) Target Designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
Obs.Date2013-11-21 "Y:M:D" Target Observation Date (time.epoch;obs)
LMJD56618   [55859/57542] Local Modified Julian Day (time.epoch)
MJD56617   [55858/57541] Modified Julian Day (time.epoch)
PlanIdGAC105N47V1  Plan Name (obs.field)
spId12   [1/16] Spectrograph ID (meta.id;instr)
FiberId135   [1/250] Fiber ID (meta.id)
RAJ2000106.9073400000 deg (i) Fiber pointing right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+48.6871800000 deg (i) Fiber pointing declination (J2000) (pos.eq.dec;meta.main)
snru 0.17   Signal Noise Ratio of u filter (stat.snr)
snrg 0.79   Signal Noise Ratio of g filter (stat.snr)
snrr 5.38   Signal Noise Ratio of r filter (stat.snr)
snri 11.58   Signal Noise Ratio of i filter (stat.snr)
snrz 15.81   Signal Noise Ratio of z filter (stat.snr)
objTypestar  Object Type (src.class)
ClassSTAR  Spectra Type (src.class)
SubClassM3  Stellar Sub-Class (src.class)
z -0.0002018000   Redshift (src.redshift)
e_z 0.0000162600   []? rms uncertainty on z (stat.error;src.redshift)
magTypeugrijhk  Target Magnitude Type (meta.note)
mag1    Magnitude in Band 1 of magType (phot.mag)
mag2    Magnitude in Band 2 of magType (phot.mag)
mag3    Magnitude in Band 3 of magType (phot.mag)
mag4    Magnitude in Band 4 of magType (phot.mag)
mag5 9.11   Magnitude in Band 5 of magType (phot.mag)
mag6 8.53   Magnitude in Band 6 of magType (phot.mag)
mag7 8.26   Magnitude in Band 7 of magType (phot.mag)
tsourcePILOT  Organization or person who submits input catalog (meta.curation)
FiberTypeObj  Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) (meta.note)
tfrom   Input catalog submitted by an organization or a person determined by the tsource (obs.observer)
tInfoXY0703+4702_V1  Target ID from SDSS, UCAC4, PANSTAR and other catalogue (meta.bib)
n_offset0   [0/1] Whether there is a fiber offset during observation (meta.note)
offset 0.000 arcsec [0/99] If offset is true, it gives the offset distance from the target's coordinator in input catalog (pos.angDistance;arith.diff)
RA1deg106.9073400000  Rigth ascension from input catalog (J2000) (pos.eq.ra)
DE1deg48.6871800000  Declination from input catalog (J2000) (pos.eq.dec)

AssocDataObsCore view  Associated Data web page (meta.ref.url)
FileNamespec-56618-GAC105N47V1_sp12-135.fits  FITS files name (meta.id)
  
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Cite/acknowledge VizieR catalogue
Rules of usage of VizieR data

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