VizieR

CfA VizieR . ADAC VizieR . CADC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . Beijing (Ch) 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=6040345
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ColumnValue  Explain   (UCD)
_RAJ200022 55 59.784552000 "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+17 48 42.38568000 "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)
_RAB195022 53 31.985173971 "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+17 32 40.73453121 "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)
_Glon087.773586262387 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-37.056852705144 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)
6040345recno 6040345  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
spplot  Show the spectrum (meta.ref.url)

ObsID363013021   [101001/462816250] Observation ID (meta.id)
TargetJ225559.78+174842.3  (i) Target Designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
Obs.Date2015-10-02 "Y:M:D" Target Observation Date (time.epoch;obs)
LMJD57298   [55859/57542] Local Modified Julian Day (time.epoch)
MJD57297   [55858/57541] Modified Julian Day (time.epoch)
PlanIdEG224702N171358V01  Plan Name (obs.field)
spId13   [1/16] Spectrograph ID (meta.id;instr)
FiberId021   [1/250] Fiber ID (meta.id)
RAJ2000343.9991023000 deg (i) Fiber pointing right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+17.8117738000 deg (i) Fiber pointing declination (J2000) (pos.eq.dec;meta.main)
snru 6.81   Signal Noise Ratio of u filter (stat.snr)
snrg107.49   Signal Noise Ratio of g filter (stat.snr)
snrr238.22   Signal Noise Ratio of r filter (stat.snr)
snri370.07   Signal Noise Ratio of i filter (stat.snr)
snrz316.74   Signal Noise Ratio of z filter (stat.snr)
objTypeStar  Object Type (src.class)
ClassSTAR  Spectra Type (src.class)
SubClassM0  Stellar Sub-Class (src.class)
z -0.0000701300   Redshift (src.redshift)
e_z 0.0000062600   []? rms uncertainty on z (stat.error;src.redshift)
magTypegri  Target Magnitude Type (meta.note)
mag111.20   Magnitude in Band 1 of magType (phot.mag)
mag2 9.90   Magnitude in Band 2 of magType (phot.mag)
mag3 9.02   Magnitude in Band 3 of magType (phot.mag)
mag4    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)
tsourceLEGUE_LCH  Organization or person who submits input catalog (meta.curation)
FiberTypeObj  Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) (meta.note)
tfromLCH001003  Input catalog submitted by an organization or a person determined by the tsource (obs.observer)
tInfo<offset, 9.90, 343.999373610, 17.811064170, 2.72>13788432552176882  Target ID from SDSS, UCAC4, PANSTAR and other catalogue (meta.bib)
n_offset1   [0/1] Whether there is a fiber offset during observation (meta.note)
offset 2.720 arcsec [0/99] If offset is true, it gives the offset distance from the target's coordinator in input catalog (pos.angDistance;arith.diff)
RA1deg343.9993736100  Rigth ascension from input catalog (J2000) (pos.eq.ra)
DE1deg17.8110641700  Declination from input catalog (J2000) (pos.eq.dec)

AssocDataObsCore view  Associated Data web page (meta.ref.url)
FileNamespec-57298-EG224702N171358V01_sp13-021.fits  FITS files name (meta.id)
  
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