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=7520032
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ColumnValue  Explain   (UCD)
_RAJ200018 49 08.253360000 "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+42 09 15.18840000 "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)
_RAB195018 47 33.530012535 "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+42 05 45.34681936 "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)
_Glon071.632252565749 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+18.218763933196 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)
7520032recno 7520032  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
spplot  Show the spectrum (meta.ref.url)

ObsID457207039   [101001/462816250] Observation ID (meta.id)
TargetJ184908.25+420915.1  (i) Target Designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
Obs.Date2016-05-07 "Y:M:D" Target Observation Date (time.epoch;obs)
LMJD57516   [55859/57542] Local Modified Julian Day (time.epoch)
MJD57515   [55858/57541] Modified Julian Day (time.epoch)
PlanIdHD184435N434959B01  Plan Name (obs.field)
spId07   [1/16] Spectrograph ID (meta.id;instr)
FiberId039   [1/250] Fiber ID (meta.id)
RAJ2000282.2843890000 deg (i) Fiber pointing right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+42.1542190000 deg (i) Fiber pointing declination (J2000) (pos.eq.dec;meta.main)
snru 0.91   Signal Noise Ratio of u filter (stat.snr)
snrg 21.53   Signal Noise Ratio of g filter (stat.snr)
snrr 56.81   Signal Noise Ratio of r filter (stat.snr)
snri 81.27   Signal Noise Ratio of i filter (stat.snr)
snrz 60.49   Signal Noise Ratio of z filter (stat.snr)
objTypeStar  Object Type (src.class)
ClassSTAR  Spectra Type (src.class)
SubClassK7  Stellar Sub-Class (src.class)
z -0.0001715520   Redshift (src.redshift)
e_z 0.0000125087   []? rms uncertainty on z (stat.error;src.redshift)
magTypegri  Target Magnitude Type (meta.note)
mag115.98   Magnitude in Band 1 of magType (phot.mag)
mag214.80   Magnitude in Band 2 of magType (phot.mag)
mag314.23   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)
tfromLCH100002  Input catalog submitted by an organization or a person determined by the tsource (obs.observer)
tInfo14370895304072122  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)
RA1deg282.2843890000  Rigth ascension from input catalog (J2000) (pos.eq.ra)
DE1deg42.1542190000  Declination from input catalog (J2000) (pos.eq.dec)

AssocDataObsCore view  Associated Data web page (meta.ref.url)
FileNamespec-57516-HD184435N434959B01_sp07-039.fits  FITS files name (meta.id)
  
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