BGDS time seriesbgds.ssa_time_seivo://org.gavo.dc/bgds/l/ssa_time_seriesThe GAVO DC teamHackstein, M.Haas, M.Fein, C.Chini, R.2022-01-25T14:30:51ZGAVO Data Center TeamMönchhofstrasse 12-14, D-69120 Heidelberggavo@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.https://dc.zah.uni-heidelberg.de/tableinfo/bgds.ssa_time_seriesSurveyResearchIsServedByGAVO Data Center ObscoreUniversitätssternwarte 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-19OpticalivoaDefinition and support code for the ObsCore data model and table.
ivoa.obscoreThis data collection is queryable in GAVO Data Center's obscore table.
bgdsBGDS time series
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 publicacharnullablemimeMIME 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