nda.epn_coreivo://padc.obspm.nancay/nda/q/epn_coreParis Astronomical Data CentreStation de Radioastronmie de Nancay2026-01-20T03:37:28ZLaurent Lamy

Station de Radioastronomie Route de Souesmes, F-18330 Nancay, France

contact.nda@obs-nancay.frsolar-system-astronomyplanetary-scienceplanetary-magnetosphereradio-astronomymagnetospheric-radio-emissionssolar-radio-emissionjupiterthe-sunsolar-wind Decametric radio observation from Nancay decameter array. The Nancay Decameter Array (NDA) at the Station de Radioastronomie de Nancay (SRN) is a phased array of 144 "Teepee" helicoidal antenna, half of which being Right Handed (RH) polarized and the other half being Left Handed (LH) polarized. Four receivers are currently connected to the NDA, sampling data in spectral ranges within 5 to 80 MHz.2000GMS...119..321Lhttp://vogate.obs-nancay.fr/tableinfo/nda.epn_coreCatalogGeneralUniversityResearchAmateurIsServedByCDN VO Server TAP servicehttp://vogate.obs-nancay.fr/tapStation de Radioastronomie de Nancay#SRNNancay Decameter Array#NDA6.62607004e-27 5.30085603e-26Radionda Decametric radio observation from Nancay decameter array. The Nancay Decameter Array (NDA) at the Station de Radioastronomie de Nancay (SRN) is a phased array of 144 "Teepee" helicoidal antenna, half of which being Right Handed (RH) polarized and the other half being Left Handed (LH) polarized. Four receivers are currently connected to the NDA, sampling data in spectral ranges within 5 to 80 MHz.nda.epn_core Decametric radio observation from Nancay decameter array. The Nancay Decameter Array (NDA) at the Station de Radioastronomie de Nancay (SRN) is a phased array of 144 "Teepee" helicoidal antenna, half of which being Right Handed (RH) polarized and the other half being Left Handed (LH) polarized. Four receivers are currently connected to the NDA, sampling data in spectral ranges within 5 to 80 MHz.ivo://ivoa.net/std/epntap#table-2.0granule_uidInternal table row index, which must be unique within the table. Can be alphanumeric.meta.idcharindexedprimarygranule_gidCommon to granules of same type (e.g. same map projection, or geometry data products). Can be alphanumeric.meta.idcharobs_idAssociates granules derived from the same data (e.g. various representations/processing levels). Can be alphanumeric, may be the ID of original observation.meta.id;obschardataproduct_typeThe high-level organization of the data product, from a controlled vocabulary (e.g., 'im' for image, sp for spectrum). Multiple terms may be used, separated by # characters.meta.code.classcharnullabletarget_nameStandard IAU name of target (from a list related to target class), case sensitivemeta.id;srccharnullabletarget_classType of target, from a controlled vocabulary.src.classcharnullabletime_minAcquisition start time (in JD), as UTC at time_refpositiondtime.start;obsdoublenullabletime_maxAcquisition stop time (in JD), as UTC at time_refpositiondtime.end;obsdoublenullabletime_sampling_step_minSampling time for measurements of dynamical phenomena, lower limit.stime.resolution;stat.mindoublenullabletime_sampling_step_maxSampling time for measurements of dynamical phenomena, upper limitstime.resolution;stat.maxdoublenullabletime_exp_minIntegration time of the measurement, lower limit.stime.duration;obs.exposure;stat.mindoublenullabletime_exp_maxIntegration time of the measurement, upper limitstime.duration;obs.exposure;stat.maxdoublenullablespectral_range_minSpectral range (frequency), lower limit.Hzem.freq;stat.mindoublenullablespectral_range_maxSpectral range (frequency), upper limitHzem.freq;stat.maxdoublenullablespectral_sampling_step_minSpectral sampling step, lower limit.Hzem.freq;spect.binSize;stat.mindoublenullablespectral_sampling_step_maxSpectral sampling step, upper limitHzem.freq;spect.binSize;stat.maxdoublenullablespectral_resolution_minSpectral resolution, lower limit.spect.resolution;stat.mindoublenullablespectral_resolution_maxSpectral resolution, upper limitspect.resolution;stat.maxdoublenullablec1min(This data collection does not give coordinates)doublenullablec1max(This data collection does not give coordinates)doublenullablec2min(This data collection does not give coordinates)doublenullablec2max(This data collection does not give coordinates)doublenullablec3min(This data collection does not give coordinates)doublenullablec3max(This data collection does not give coordinates)doublenullables_regionObsCore-like footprint, valid for celestial, spherical, or body-fixed framespos.outline;obs.fieldcharnullablec1_resol_min(This data collection does not give coordinates)doublenullablec1_resol_max(This data collection does not give coordinates)doublenullablec2_resol_min(This data collection does not give coordinates)doublenullablec2_resol_max(This data collection does not give coordinates)doublenullablec3_resol_min(This data collection does not give coordinates)doublenullablec3_resol_max(This data collection does not give coordinates)doublenullablespatial_frame_typeFlavor of coordinate system, defines the nature of coordinates. From a controlled vocabulary, where 'none' means undefined.meta.code.class;pos.framecharnullableincidence_minIncidence angle (solar zenithal angle) during data acquisition, lower limit.degpos.incidenceAng;stat.mindoublenullableincidence_maxIncidence angle (solar zenithal angle) during data acquisition, upper limitdegpos.incidenceAng;stat.maxdoublenullableemergence_minEmergence angle during data acquisition, lower limit.degpos.emergenceAng;stat.mindoublenullableemergence_maxEmergence angle during data acquisition, upper limitdegpos.emergenceAng;stat.maxdoublenullablephase_minPhase angle during data acquisition, lower limit.degpos.phaseAng;stat.mindoublenullablephase_maxPhase angle during data acquisition, upper limitdegpos.phaseAng;stat.maxdoublenullableinstrument_host_nameStandard name of the observatory or spacecraftmeta.id;instr.obstycharnullableinstrument_nameStandard name of instrumentmeta.id;instrcharnullablemeasurement_typeUCD(s) defining the data, with multiple entries separated by hash (#) characters.meta.ucdcharnullableprocessing_levelDataset-related encoding, or simplified CODMAC calibration levelmeta.calibLevelintcreation_dateDate of first entry of this granuletime.creationcharnullablemodification_dateDate of last modification (used to handle mirroring)time.processingcharnullablerelease_dateStart of public access periodtime.releasecharnullableservice_titleTitle of resource (an acronym really, will be used to handle multiservice results)meta.titlecharnullableaccess_urlURL of the data file, case sensitive. If present, then access_format and access_estsize are mandatory.meta.ref.url;meta.filecharnullablefile_nameName of the data file only, case sensitivemeta.id;meta.filecharnullableaccess_formatFile format type (RFC 6838 Media Type a.k.a. MIME type)meta.code.mimecharnullableaccess_estsizeEstimated file size in kbyte.kbytephys.size;meta.fileintnullabletime_scaleDefaults to UTC in data services; takes values from http://www.ivoa.net/rdf/time_scale otherwisetime.scalecharnullableaccess_md5MD5 Hash for the filemeta.checksum;meta.filecharnullablethumbnail_urlURL of a thumbnail image with predefined size (png ~200 pix, for use in a client only)meta.ref.url;meta.previewcharnullablespeciesIdentifies a chemical species, case sensitivemeta.id;phys.atmolcharnullablepublisherA short string identifying the entity running the data service usedmeta.curationcharnullablebib_referenceBibcode or DOI preferred if available, or other bibliographic identifier or URLmeta.bibcharnullabletarget_regionType of region or feature of interestmeta.id;src;obs.fieldcharnullablefeature_nameSecondary name (can be standard name of region of interest)meta.id;src;obs.fieldcharnullabledatalink_urlLink to a datalink document for this datasetmeta.ref.urlcharnullablereceiver_nameReceiver name used with the instrument.meta.idcharnullablerelative_pathmeta.idcharnullabledate_meridianDate of passage of the object at meridiantime;obscharnullablespectral_bandwith_minSpectral bandwidth of individual spectral sampleinstr.bandwidth;em.freq;stat.mindoublenullablespectral_bandwith_maxSpectral bandwidth of individual spectral sampleinstr.bandwidth;em.freq;stat.mindoublenullable