bgds.ssa_time_seivo://org.gavo.dc/bgds/l/ssa_time_seriesThe GAVO DC teamHackstein, M.Haas, M.Fein, C.Chini, R.2026-01-16T09:35:01ZGAVO Data Centre Team

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gavo@ari.uni-heidelberg.de+49 6221 54 1837surveysgalaxy-planesmilky-way-galaxyvariable-starsbroad-band-photometrytime-domain-astronomy This table contains about metadata about the photometric time series from BGDS in IVOA SSA format. The actual data is available through a datalink service or in the phot_i and phot_r tables.2015AN....336..590Hhttp://dc.g-vo.org/tableinfo/bgds.ssa_time_seriesSurveyResearchIsPreviousVersionOfBGDS light curves DR2Universitätssternwarte Bochum near Cerro ArmazonesRobotic Bochum Twin Telescope (RoBoTT)3/336,338,450-451,461,472,591-592,613,615,621,651-652,659,662-663 4/1301,1303,1358,1376-1377,1379-1380,1382,1794,1816,1818-1819,1822-1823,1829,1840-1841,1892,1894,1897,2327,2333,2335,2357-2359,2376,2378,2400,2402,2408,2492-2493,2495,2528,2530,2536,2538,2591,2599,2601-2603,2612-2614,2616,2634-2635,2643,2646-2647,2656-2657,2688-269055450 58106.41.777e-19 6.621e-19Opticaltimeseriesbgds From the Bochum Galactic Disk Survey, time series have been obtained in the r and i bands on an (up to) nightly basis. Depending on the field, the time series contain up to more than 300 nights over more than 7 years. Each measurement represents the averaged flux over 10 minutes of observation (from 9 averaged 10s images). The Bochum Galactic Disk Survey is an ongoing project to monitor the stellar content of the Galactic disk in a 6 degree wide stripe centered on the Galactic plane. The data has been recorded since mid-2010 in Sloan r and i simultaneously with the Robotic Bochum Twin Telescope (RoBoTT) at the Universitaetssternwarte Bochum near Cerro Armazones in the Chilean Atacama desert. It contains measurements of about 2x10^7 stars over more than seven years. Additionally, intermittent measurements in Johnson UVB and Sloan z have been recorded as well.bgds.ssa_time_series This table contains about metadata about the photometric time series from BGDS in IVOA SSA format. The actual data is available through a datalink service or in the phot_i and phot_r tables.accrefAccess 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.Sizelongnullablessa_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.Namecharindexedssa_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 of target objectsrc.redshiftssa:Target.Redshiftfloatnullablessa_targetposEquatorial (ICRS) position of the target object.pos.eq;srcssa:Target.pos.spointdoublenullablessa_snrSignal-to-noise ratio estimated for this datasetstat.snrssa:Derived.SNRfloatnullablessa_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.Valuedoublenullablessa_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_dstypeType of data (spectrum, time series, etc)ssa:Dataset.Typecharnullablessa_publisherPublisher of the datasets included here.meta.curationssa:Curation.Publishercharnullablessa_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 fluxs**-1stat.error;phot.flux.density;emssa:Char.FluxAxis.Accuracy.StatErrorfloatnullablessa_fluxsyserrorSystematic error in fluxs**-1stat.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.Resolutionfloatnullableobs_idMain identifier of this observation (a single object may have multiple observations in different bands and fields)meta.id;meta.maincharnullabletime_minFirst timestamp in time series (MJD Topocentric UTC)dtime.epoch;stat.mindoublenullabletime_maxLast timestamp in time series (MJD Topocentric UTC)dtime.epoch;stat.maxdoublenullableampDifference between brightest and weakest observation.magphot.mag;arith.difffloatnullablemean_magMean magnitude in band given in phot_band.magphot.mag;stat.meanfloatnullablefieldSurvey field observed.meta.id;obs.fieldcharnullableraICRS right ascension for this object.pos.eq.ra;meta.maindoublenullabledecICRS declination for this object.pos.eq.dec;meta.maindoublenullablemjdsAn array containing the epochs of the time seriesdtime.epochdoublenullablemagsAn array containing the values of the time series.magphot.magfloatnullable