2026-05-27T05:14:17.385463ivo://astro.ucl.ac.uk/mdisc/q/epn_coreUCLPatrick Guio2019-11-12T15:18:07Patrick Guio

Dpt Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom

p.guio@ucl.ac.ukgas giants planetmagnetic fieldmagnetodiscEncyclopedia of UCL Magnetodisc Model2010MNRAS.401.2349Ahttp://astroweb.projects.phys.ucl.ac.uk:8000/tableinfo/mdisc.epn_coreGeneralUniversityResearchmdisc UCL Magnetodisc Model for Jupiter and Saturn. The data consists of the magnetic field in JMAG spherical coordinates. For details and further references, see: Achilleos N. A., Guio, P. and Arridge, C. S., 2010, A model of force balance in Saturn's magnetodisc, MNRAS, 401, 2349-2371, <a href="https://doi.org/10.1111/j.1365-2966.2009.15865.x">doi:10.1111/j.1365-2966.2009.15865.x</a>eonmdisc.epn_coreEncyclopedia of UCL Magnetodisc Modelivo://vopdc.obspm/std/epncore#schema-2.0granule_uidInternal table row index Unique ID in data service, also in v2. 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.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_maxdoublenullablec1minRadial distance in spherical coordinates, lower limit.mphys.distance;stat.minEpn.Spatial.Spatial_range.c1mindoublenullablec1maxRadial distance in spherical coordinates, upper limitmphys.distance;stat.maxEpn.Spatial.Spatial_range.c1maxdoublenullablec2minPolar angle or colatitude in spherical coordinates, lower limit.degpos.az.zd;stat.minEpn.Spatial.Spatial_range.c2mindoublenullablec2maxPolar angle or colatitude in spherical coordinates, upper limitdegpos.az.zd;stat.maxEpn.Spatial.Spatial_range.c2maxdoublenullablec3minAzimuth in spherical coordinates, lower limit.degpos.az.azi;stat.minEpn.Spatial.Spatial_range.c3mindoublenullablec3maxAzimuth in spherical coordinates, upper limitdegpos.az.azi;stat.maxEpn.Spatial.Spatial_range.c3maxdoublenullables_regionObsCore-like footprint, valid for celestial, spherical, or body-fixed frames.phys.outline;obs.fieldcharnullablec1_resol_minResolution in the first coordinate, lower limit.mpos.resolution;stat.minEpn.Spatial.Spatial_resolution.c1_resol_mindoublenullablec1_resol_maxResolution in the first coordinate, upper limitmpos.resolution;stat.maxEpn.Spatial.Spatial_resolution.c1_resol_maxdoublenullablec2_resol_minResolution in the second coordinate, lower limit.degpos.resolution;stat.minEpn.Spatial.Spatial_resolution.c2_resol_mindoublenullablec2_resol_maxResolution in the second coordinate, upper limitdegpos.resolution;stat.maxEpn.Spatial.Spatial_resolution.c2_resol_maxdoublenullablec3_resol_minResolution in the third coordinate, lower limit.degpos.resolution;stat.minEpn.Spatial.Spatial_resolution.c3_resol_mindoublenullablec3_resol_maxResolution in the third coordinate, upper limitdegpos.resolution;stat.maxEpn.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.titlecharnullableaccess_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.Formatcharnullableaccess_estsizeEstimated file size in kbyte.kbytephys.size;meta.fileObs.Access.Sizeintnullablethumbnail_urlURL of a thumbnail image with predefined size (png ~200 pix, for use in a client only).meta.ref.url;meta.filecharnullabletarget_regionType of region of interestmeta.id;classcharnullablebib_referenceBibcode preferred if available (does that include link?), doi, or other biblio id, URLmeta.bibcharnullablekhHot plasma index Kh = PV (pressure P x volume per unit flux V)Pa.m/Tphys.pressuredoublenullablermpMagnetopause distance in planetRad (jupiterRad=71492.0e3 m, saturnRad=60268.0e3 m)planetRadpos.distancedoublenullable