DCSSAivo://purx/datacentral-ssaData CentralMiszalski, B.Tocknell, J.O'Toole S. J.2021-06-08T09:24:53.264856ZData Centralhelp@datacentral.org.auspectroscopystellar-astronomygalaxiesredshift-surveysgalactic-archaeologySpectra from surveys hosted by Data Central. Most spectra were taken with the multi-object spectroscopy facilities 2dF (Anglo-Australian Telescope) and 6dF (UK Schmidt Telescope).https://docs.datacentral.org.au/reference/services/simple-spectral-access-ssa-serviceIf you use this service, please acknowledge Data Central: see https://docs.datacentral.org.au/reference/acknowledgements/acknowledging-data-central/https://datacentral.org.au/vo/ssa/query?GETapplication/x-votable+xmlPOSThe centre of the region of interest specified as ra,dec in decimal degrees (ICRS 2000). Reference frame format modifier is not supported.degcharSIZEThe diameter of the circular region of interest in decimal degrees.degrealBANDBAND in metres as either a single value (e.g. BAND=550e-9) or a range (e.g. BAND=1e-7/3e-6). The latter may also be specified as "/" (all wavelengths), "550e-9/" (wavelengths gt 550nm) or "/550e-9" (wavelengths lt 550 nm). Filter names are not supported (e.g. BAND=J). Qualifiers of ;source or ;observer are not supported.mcharBANDRESTSame as BAND, but operates on the rest wavelength frame of the spectra. BANDREST in metres as either a single value (e.g. BANDREST=550e-9) or a range (e.g. BANDREST=1e-7/3e-6). The latter may also be specified as "/" (all wavelengths), "550e-9/" (wavelengths gt 550nm) or "/550e-9" (wavelengths lt 550 nm). Filter names are not supported (e.g. BANDREST=J). Qualifiers of ;source or ;observer are not supported.mcharTIMETIME in format yyyy, yyyy-mm, yyyy-mm-dd or yyyy-mm-ddThh:mm:ss. May also be specified as a range, e.g. "/" (all time), "yyyy-mm-dd/yyyy-mm-dd (spectrum overlaps date range)", "yyyy-mm-dd/" (spectra taken gte yyyy-mm-dd) or "/yyyy-mm-dd" (spectra taken lte yyyy-mm-dd).charFORMATDesired format of the retrieved data in a comma separated list. Supported values include application/x-votable+xml, application/fits, application/xml, votable, fits and metadata.charREQUESTSSA protocol versions supported by this service. Reserved words for future extensions are: getData, stageData, getCapabilities, getAvailability. Values are treated case-insensitive.charSPECRPThe spectrum resolving power. Specified as a single number, e.g. SPECRP=12000, such that em_res_power gte 12000 or em_res_power_min gte 12000, where em_res_power and em_res_power_min are the relevant obscore parameters.realTIMERESThe minimum time resolution in seconds. Specified as a single number, e.g. TIMERES=60, such that t_resolution gte 60, where t_resolution is the relevant obscore parameter.srealSNRThe minimum signal-to-noise ratio of the spectra. Specified as a single number, e.g. SNR=20, such that em_snr gte 20, where em_snr is the relevant obscore parameter.realREDSHIFTThe redshift of the spectra. Specified as a range, e.g. "/" (all redshifts), "1.2/" (redshift gte 1.2) or "/2" (redshift lte 2), where redshift is the relevant custom obscore parameter.charRVThe radial velocity of the spectra. Specified as a range, e.g. "/" (all rvs), "100/" (rv gte 100 km/s) or "/50" (rv lte 50 km/s), where rv is the relevant custom obscore parameter.charTARGETNAMEThe name of the target, matched to the obscore parameters target_name or alt_target_name.charFLUXCALIBSpecifies the minimum level of flux calibration. Possible values include "absolute", "relative", "normalized" and "any".charWAVECALIBSpecifies the minimum level of spectral coordinate calibration. Possible values include "absolute", "relative" and "any".charPUBDIDThe IVOA publisher dataset identifier, assigned by the publisher of a dataset.charCREATORDIDThe IVOA dataset identifier.charCOLLECTIONThe collection the spectra belong to. The format is the survey name, followed by "_" and the data release identifier. For example, gama_dr2 or galah_dr3.charTOPLimits the number of returned records in the query response table to the specified number of top ranking ones. Since we order the output results by those nearest to the query position, we treat this parameter exactly like MAXREC.integerMAXRECThe maximum number of records to be returned.charCALIBCalibration level of the data. Integer value of 0, 1, 2, 3 or 4.integerDPSUBTYPEThe dataproduct subtype of the spectrum. Either "science" or "combined" for stacked spectra.charEXPTIMEThe exposure time of the spectrum in seconds. Specified as a single number, e.g. EXPTIME=1200, such that t_exptime gte 1200, where t_exptime is the relevant obscore parameter.srealFACILITYThe facility name used to take the spectrum.charFILTERFilter description for the spectrum. For example, V, R or VR for 6dfgrs_fdr or B, V, R or I for galah_dr3.charFOVThe field-of-view (aperture size) in degrees used to obtain the spectrum, e.g. fibre diameter for MOS spectra or longslit width for longslit spectra. Specified as a range, e.g. FOV=/ (all sizes), FOV=a/ (s_fov gte a), FOV=/b (s_fov lte b), FOV=a/b (a lte s_fov lte b). Here s_fov is the obscore parameter of interest.degcharINSTRUMENTThe instrument name used to take the spectrum.charISBESTBoolean parameter whether the spectrum is the best available in a given COLLECTION. Acceptable values include 1, T, True or 0, F, False.charNEPOCHSThe number of observations (epochs) for a spectrum. Specified as a single number, e.g. NEPOCHS=5, such that t_xel gte 5, where t_xel is the relevant obscore parameter.integerPROPOSALProposal code of the corresponding telescope proposal under which the spectra were taken.charRESOLUTIONThe resolution (full-width at half-maximum) of the spectrum in metres. Specified as a single number, e.g. 2 Angstrom would be RESOLUTION=2.0E-10, such that em_resolution lte 2.0E-10, where em_resolution is the relevant obscore parameter.mrealSEEINGThe seeing at the time of observation in arcsec. Specified as a single number, e.g. SEEING=1.5, such that s_seeing lte 1.5, where s_seeing is our custom obscore parameter.arcsecrealSUBCOLLECTIONThe subcollection of the dataset to query. For example, if COLLECTION=gama_dr2, then SUBCOLLECTION could be one of 2dfgrs, 2qz, 2slaq-lrg, 2slaq-qso, 6dfgs, gama, gama_lt, mgc, sdss or wigglez.charTIMEMJDThe modified julian date in days. Can be either a single number (e.g. MJD=55063), matching spectra thats overlap the date, or as a range (e.g. MJD=55062.1/55064.3). The latter may also be specified as "/" (all time), "55062.1/" (MJD gte 55062.1) or "/55064.3" (MJD lte 55064.3).dcharquerysurveypointedarchivalspectralExtractionICRS2000001000POS=55,-29.1&SIZE=0.4&COLLECTION=6dfgs_fdr&FILTER=VR&REQUEST=queryDatahttps://datacentral.org.au/vo/ssa/availability