VizieR

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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=4879886
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ColumnValue  Explain   (UCD)
_RAJ200001 25 55.936320000 "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+35 10 36.91200000 "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)
_RAB195001 23 05.284286996 "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+34 55 02.40094451 "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)
_Glon130.849765676902 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-27.163939045997 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)
4879886recno 4879886  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
spplot  Show the spectrum (meta.ref.url)

ObsID280108204   [101001/462816250] Observation ID (meta.id)
TargetJ012555.93+351036.9  (i) Target Designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
Obs.Date2014-12-13 "Y:M:D" Target Observation Date (time.epoch;obs)
LMJD57005   [55859/57542] Local Modified Julian Day (time.epoch)
MJD57004   [55858/57541] Modified Julian Day (time.epoch)
PlanIdM31020N36B1  Plan Name (obs.field)
spId08   [1/16] Spectrograph ID (meta.id;instr)
FiberId204   [1/250] Fiber ID (meta.id)
RAJ2000021.4830680000 deg (i) Fiber pointing right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+35.1769200000 deg (i) Fiber pointing declination (J2000) (pos.eq.dec;meta.main)
snru 2.93   Signal Noise Ratio of u filter (stat.snr)
snrg 18.82   Signal Noise Ratio of g filter (stat.snr)
snrr 48.50   Signal Noise Ratio of r filter (stat.snr)
snri 72.85   Signal Noise Ratio of i filter (stat.snr)
snrz 73.30   Signal Noise Ratio of z filter (stat.snr)
objTypeStar  Object Type (src.class)
ClassQSO  Spectra Type (src.class)
SubClassNon  Stellar Sub-Class (src.class)
z 0.3116620000   Redshift (src.redshift)
e_z 0.0001891100   []? rms uncertainty on z (stat.error;src.redshift)
magTypeugrizjh  Target Magnitude Type (meta.note)
mag1    Magnitude in Band 1 of magType (phot.mag)
mag217.28   Magnitude in Band 2 of magType (phot.mag)
mag316.22   Magnitude in Band 3 of magType (phot.mag)
mag415.72   Magnitude in Band 4 of magType (phot.mag)
mag5    Magnitude in Band 5 of magType (phot.mag)
mag6    Magnitude in Band 6 of magType (phot.mag)
mag7    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)
tfromLAMOST  Input catalog submitted by an organization or a person determined by the tsource (obs.observer)
tInfoM31_020N36_B1  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)
RA1deg 21.4830680000  Rigth ascension from input catalog (J2000) (pos.eq.ra)
DE1deg35.1769200000  Declination from input catalog (J2000) (pos.eq.dec)

AssocDataObsCore view  Associated Data web page (meta.ref.url)
FileNamespec-57005-M31020N36B1_sp08-204.fits  FITS files name (meta.id)
  
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