ivoa.obscoreThis data collection is queryable in GAVO Data Center's obscore table.
lamost6LAMOST DR6 Spectra LAMOST, the The Large Sky Area Multi-Object Fiber Spectroscopic
Telescope (or Guoshoujing Telescope) is an instrument tailored for
producing large number of optical medium- and low-resolution spectra.
Here, we publish both the medium (MRS) and low (LRS) resolution
spectra from Data Release 6, http://dr6.lamost.org/v2/, to the Virtual
Observatory.
lamost6.ssa_lrsSSA-compliant metadata for LAMOST DR6 low resolution spectra; this
data is also availble through Obscore; the collection name there is
LAMOST6 LRS.10000000accrefAccess key for the datameta.ref.url;meta.datasetssa:Access.ReferencecharindexednullableownerOwner of the datacharnullableembargoDate the data will become/became publicyrcharnullablemimeMIME type of the file servedmeta.code.mimessa:Access.FormatcharnullableaccsizeSize of the data in bytesbytessa:Access.Size100000100000.0100000.0100000.01000001.0longnullablessa_dstitleA compact and descriptive designation of the dataset.meta.title;meta.datasetssa:DataID.Titlecharssa_creatordidDataset identifier assigned by the creatormeta.idssa:DataID.CreatorDIDcharnullablessa_pubdidDataset identifier assigned by the publishermeta.ref.ivoidssa:Curation.PublisherDIDcharindexednullablessa_cdateProcessing/Creation datetime;meta.datasetssa:DataID.Datecharnullablessa_pdateDate last published.ssa:Curation.Datecharnullablessa_bandpassBandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger.instr.bandpassssa:DataID.Bandpasscharnullablessa_cversionCreator assigned version for this dataset (will be incremented when this particular item is changed).meta.version;meta.datasetssa:DataID.Versioncharnullablessa_targnameCommon name of object observed.meta.id;srcssa:Target.Namecharssa_targclassObject class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)src.classssa:Target.Classcharnullablessa_redshiftRedshift as estimated by the LAMOST pipeline.src.redshiftssa:Target.Redshift-0.017-0.00037705-2.20152e-050.0007719715.598880.955241floatnullablessa_targetposEquatorial (ICRS) position of the target object.pos.eq;srcssa:Target.pos.spointdoublenullablessa_snrMedian signal to noise ratio over all pixel, computed as flux/sqrt(variance)stat.snrssa:Derived.SNR02.17626.966200.1389991floatnullablessa_locationICRS location of aperture centerdegpos.eqssa:Char.SpatialAxis.Coverage.Location.Valuedoubleindexednullablessa_apertureAngular diameter of aperturedegphys.angSize;instr.fovssa:Char.SpatialAxis.Coverage.Bounds.Extentfloatnullablessa_dateobsMidpoint of exposure (MJD)dtime.epochssa:Char.TimeAxis.Coverage.Location.Value55858559165701358154582561doubleindexednullablessa_timeextExposure durationstime.durationssa:Char.TimeAxis.Coverage.Bounds.Extentfloatnullablessa_specmidMidpoint of region covered in this datasetminstr.bandpassssa:Char.SpectralAxis.Coverage.Location.Valuefloatnullablessa_specextWidth of the spectrumminstr.bandwidthssa:Char.SpectralAxis.Coverage.Bounds.Extentfloatnullablessa_specstartLower value of spectral coordinatemem.wl;stat.minssa:Char.SpectralAxis.Coverage.Bounds.Startfloatnullablessa_specendUpper value of spectral coordinatemem.wl;stat.maxssa:Char.SpectralAxis.Coverage.Bounds.Stopfloatnullablessa_lengthNumber of points in the spectrumssa:Dataset.Lengthintnullablessa_modelData model name and versionssa:Dataset.DataModelcharssa_csysnameSystem RA and Dec are given inssa:CoordSys.SpaceFrame.Namecharssa_timesiTime conversion factor in Osuna-Salgado convention.ssa:Dataset.TimeSIcharnullablessa_spectralsiSpectral conversion factor in Osuna-Salgado conventionssa:Dataset.SpectralSIcharnullablessa_spectralucdUCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths.meta.ucdssa:Char.SpectralAxis.Ucdcharssa_spectralunitUnit of the spectral columnmeta.unitssa:Char.SpectralAxis.Unitcharssa_fluxsiFlux/magnitude conversion factor in Osuna-Salgado conventionssa:Dataset.FluxSIcharnullablessa_fluxucdUCD of the flux columnmeta.ucdssa:Char.FluxAxis.Ucdcharssa_fluxunitUnit of the flux columnmeta.unitssa:Char.FluxAxis.Unitcharssa_dstypeType of data (spectrum, time series, etc)ssa:Dataset.Typecharnullablessa_publisherPublisher of the datasets included here.meta.curationssa:Curation.Publishercharssa_creatorCreator of the datasets included here.ssa:DataID.CreatorunicodeCharnullablessa_collectionA short handle naming the collection this spectrum belongs to.ssa:DataID.Collectioncharnullablessa_instrumentInstrument or code used to produce these datasetsmeta.id;instrssa:DataID.Instrumentcharnullablessa_datasourceMethod of generation for the data (one of survey, pointed, theory, custom, artificial).ssa:DataID.DataSourcecharnullablessa_creationtypeProcess used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction)ssa:DataID.CreationTypecharnullablessa_referenceURL or bibcode of a publication describing this data.meta.bib.bibcodessa:Curation.Referencecharnullablessa_fluxstaterrorStatistical error in fluxstat.error;phot.flux.density;emssa:Char.FluxAxis.Accuracy.StatErrorfloatnullablessa_fluxsyserrorSystematic error in fluxstat.error.sys;phot.flux.density;emssa:Char.FluxAxis.Accuracy.SysErrorfloatnullablessa_fluxcalibType of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED).ssa:Char.FluxAxis.Calibrationcharnullablessa_binsizeBin size in wavelengthmem.wl;spect.binSizessa:Char.SpectralAxis.Accuracy.BinSizefloatnullablessa_spectstaterrorStatistical error in wavelengthmstat.error;emssa:Char.SpectralAxis.Accuracy.StatErrorfloatnullablessa_spectsyserrorSystematic error in wavelengthmstat.error.sys;emssa:Char.SpectralAxis.Accuracy.SysErrorfloatnullablessa_speccalibType of wavelength calibrationmeta.code.qualssa:Char.SpectralAxis.Calibrationcharnullablessa_specresResolution (in meters of wavelength) on the spectral axismspect.resolution;em.wlssa:Char.SpectralAxis.Resolutionfloatnullablessa_spaceerrorStatistical error in positiondegstat.error;pos.eqssa:Char.SpatialAxis.Accuracy.StatErrorfloatnullablessa_spacecalibType of calibration in spatial coordinatesmeta.code.qualssa:Char.SpatialAxis.Calibrationcharnullablessa_spaceresSpatial resolution of datadegpos.angResolutionssa:Char.SpatialAxis.Resolutionfloatnullablessa_regionRough coverage based on location and aperture.pos.outline;obs.fielddoubleindexednullableobsidUnique identifier for the observation; LAMOST observations typically result in multiple spectra.meta.id;obs10100719009070.59283506073.0642005059.416647162501.0longdesignationTarget Designation (IAU style)meta.idcharnullableplanidIdentifier of the observation planmeta.id;obs.proposalcharnullablespidIdentifier of the Spectragraph that took the source spectrum.meta.id;instr11.09.016.0161.0shortfiberidIdentifier of the fiber used to take the source spectrummeta.id;instr19.0126.0242.02501.0shortra_obsICRS right ascension of the fiber pointing (can be different from ra for bright sources).degpos.eq.ra012.2051118.6341.0383601doublenullabledec_obsICRS declination of the fiber pointingdegpos.eq.dec-9.93339-2.5764627.507956.082583.01521doublenullableobjtypeObject type: star, k2star, fs, rvcandi, galmeta.code.classcharnullablemagtypeDesignation of the bands of the magnitudes in mag_arr; this is not easy to parse by a machine, sorry.meta.codecharnullablemag_arrAn array of derived magnitudes. See mag_types for the bands these magnitudes are intended for.phot.magfloatnullablefibertypeFiber Type of target (one of Obj, Sky, F-std, Unused, PosErr, Dead)meta.code;instrcharnullabletarget_commentVarious comments (e.g., an external target id).meta.notecharnullableoffset_vOffset of the observation from the target coordinate (these are added for bright objects to prevent saturation).arcsecinstr.offset0.260.862.85.38990.0172031floatnullableraICRS right ascension for this object from input cataloguedegpos.eq.ra;meta.main012.2051118.6341.0373601doublenullabledecICRS declination for this object from input cataloguedegpos.eq.dec;meta.main-9.93339-2.5764627.507956.082583.01521doublenullablez_errError in ssa_redshift as estimated by the LAMOST pipeline.stat.error;src.redshift-64.08e-061.67449e-050.0001171e+080.952424floatnullable