2026-06-14T12:39:28.378141ivo://src.pas/ionosondes/q/epn_coreSpace Resarch Center PASLukasz Tomasik2023-08-01T08:50:07Łukasz Tomasik

SRC PAS, Warsaw

tomasik@cbk.waw.plplanetary-scienceionosphere Warsaw ionograms scaled by Autoscala softwareRWC Warsawhttp://vespa.cbk.waw.pl/tableinfo/ionosondes.epn_coreGeneralUniversityResearchionosondes Warsaw ionograms scaled by Autoscala softwareionosondes.epn_core Warsaw ionograms scaled by Autoscala softwareivo://vopdc.obspm/std/epncore#schema-2.0granule_uidInternal table row index Unique ID in data service, also in v2. Can be alphanumeric.meta.idchargranule_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.idchardataproduct_typeThe high-level organization of the data product, from enumerated list (e.g., 'im' for image, sp for spectrum)meta.code.classEpn.dataProductTypecharnullabletarget_nameStandard IAU name of target (from a list related to target class), case sensitivemeta.id;srcEpn.TargetNamecharnullabletarget_classType of target, from enumerated listmeta.code.class;srcEpn.TargetClasscharnullabletime_minAcquisition start time (in JD)dtime.startdoublenullabletime_maxAcquisition stop time (in JD)dtime.enddoublenullabletime_sampling_step_minSampling time for measurements of dynamical phenomena, lower limit.stime.interval;stat.minEpn.Time.Time_sampling_step_mindoublenullabletime_sampling_step_maxSampling time for measurements of dynamical phenomena, upper limitstime.interval;stat.maxEpn.Time.Time_sampling_step_maxdoublenullabletime_exp_minIntegration time of the measurement, lower limit.stime.duration;obs.exposure;stat.minEpn.Time.Time_exp_mindoublenullabletime_exp_maxIntegration time of the measurement, upper limitstime.duration;obs.exposure;stat.maxEpn.Time.Time_exp_maxdoublenullablespectral_range_minSpectral range (frequency), lower limit.Hzem.freq;stat.minEpn.Spectral.Spectral_range_mindoublenullablespectral_range_maxSpectral range (frequency), upper limitHzem.freq;stat.maxEpn.Spectral.Spectral_range_maxdoublenullablespectral_sampling_step_minspectral sampling step, lower limit.Hzem.freq.step;stat.minEpn.Spectral.Spectral_sampling_step_mindoublenullablespectral_sampling_step_maxspectral sampling step, upper limitHzem.freq.step;stat.maxEpn.Spectral.Spectral_sampling_step_maxdoublenullablespectral_resolution_minSectral resolution, lower limit.Hzspect.resolution;stat.minEpn.Spectral.Spectral_resolution_mindoublenullablespectral_resolution_maxSectral resolution, upper limitHzspect.resolution;stat.maxEpn.Spectral.Spectral_resolution_maxdoublenullablec1min(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c1mindoublenullablec1max(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c1maxdoublenullablec2min(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c2mindoublenullablec2max(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c2maxdoublenullablec3min(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c3mindoublenullablec3max(This data collection does not give coordinates)Epn.Spatial.Spatial_range.c3maxdoublenullables_regionObsCore-like footprint, valid for celestial, spherical, or body-fixed frames.phys.outline;obs.fieldcharnullablec1_resol_min(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c1_resol_mindoublenullablec1_resol_max(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c1_resol_maxdoublenullablec2_resol_min(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c2_resol_mindoublenullablec2_resol_max(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c2_resol_maxdoublenullablec3_resol_min(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c3_resol_mindoublenullablec3_resol_max(This data collection does not give coordinates)Epn.Spatial.Spatial_resolution.c3_resol_maxdoublenullablespatial_frame_typeFlavor of coordinate system, defines the nature of coordinates. From enumerated listmeta.code.class;pos.framecharnullableincidence_minIncidence angle (solar zenithal angle) during data acquisition, lower limit.degpos.posAng;stat.minEpn.View_angle.Incidence_angle_mindoublenullableincidence_maxIncidence angle (solar zenithal angle) during data acquisition, upper limitdegpos.posAng;stat.maxEpn.View_angle.Incidence_angle_maxdoublenullableemergence_minEmergence angle during data acquisition, lower limit.degpos.posAng;stat.minEpn.View_angle.Emergence_angle_mindoublenullableemergence_maxEmergence angle during data acquisition, upper limitdegpos.posAng;stat.maxEpn.View_angle.Emergence_angle_maxdoublenullablephase_minPhase angle during data acquisition, lower limit.degpos.phaseAng;stat.minEpn.View_angle.Phase_angle_mindoublenullablephase_maxPhase angle during data acquisition, upper limitdegpos.phaseAng;stat.maxEpn.View_angle.Phase_angle_maxdoublenullableinstrument_host_nameStandard name of the observatory or spacecraft.meta.id;instr.obstyProvenance.ObsConfig.Facility.namecharnullableinstrument_nameStandard name of instrumentmeta.id;instrProvenance.ObsConfig.Instrument.namecharnullablemeasurement_typeUCD(s) defining the data, with multiple entries separated by hash (#) characters.meta.ucdEpn.Measurement_typecharnullableprocessing_levelCODMAC calibration level; see the et_cal note http://dc.g-vo.org/tableinfo/titan.epn_core#note-et_cal for what values are defined here.meta.code;obs.calibintcreation_dateDate of first entry of this granuletime.creationcharnullablemodification_dateDate of last modification (used to handle mirroring)time.updatecharnullablerelease_dateStart of public access periodtime.releasecharnullableservice_titleTitle of resource (an acronym really, will be used to handle multiservice results)meta.titlecharnullabletime_scaleAlways UTC in data services (may be relaxed in computational services such as ephemeris) - from enumerated listtime.scalecharnullablepublisherA short string identifying the entity running the data service used.meta.refcharnullablebib_referenceBibcode preferred if available (does that include link?), doi, or other biblio id, URLmeta.bibcharnullableaccess_urlURL of the data file, case sensitive. Can point to a script.meta.ref.url;meta.fileObs.Access.Referencecharnullableaccess_formatFile format type (RFC 6838 Media Type a.k.a MIME type)meta.code.mimeObs.Access.Formatcharnullabletarget_regionType of region of interestmeta.id;classcharnullablespatial_coordinate_descriptionID of specific coordinate system and version.meta.code.class;pos.framecharnullable