illu67p.epn_coreivo://cdpp/illu67p/q/epn_coreCDPP - Centre de Données de la Physique des PlasmasBeth Arnaud2026-02-12T09:55:46ZBeth Arnaud

Imperial College London, Dpt of Physics, Prince Consort Road, SW7 2AZ, London, United Kingdom

abeth@ic.ac.ukcomet-surfacesThanks to the Rosetta mission, we probed the shape of comet 67P / Churyumov-Gerasimenko. During the cruise, observations revealed strong correlations with the illumination conditions of 67P (diurnal and seasonal variations). Thus, it has been necessary to calculate these conditions from the shape model of comet 67P.https://cdpp-epntap.irap.omp.eu/tableinfo/illu67p.epn_coreIsServedByCDPP EPN-TAP server TAP servicehttps://cdpp-epntap.irap.omp.eu/tapillu67pThis service provides illumination maps for comet 67P. The information is given as the cosinus of the angle between the normal to each facet of the comet shape model and the Sun direction. The comet shape model has 100k facets and corresponds to CSHP_DV_130_01_______00200. Maps are obtained for all solar latitudes / longitudes with one-degree step for both, in the comet reference frame (C-G_CK as provided by ESA/PSA and obtained through AMDA amda.cdpp.eu). The code is developed by A. Beth, Imperial College. User can access both numerical values and images of the illumination maps, projected in latitude and longitude.ivo://vopdc.obspm/std/EpnCore#schema-2.0illu67p.epn_coreThanks to the Rosetta mission, we probed the shape of comet 67P / Churyumov-Gerasimenko. During the cruise, observations revealed strong correlations with the illumination conditions of 67P (diurnal and seasonal variations). Thus, it has been necessary to calculate these conditions from the shape model of comet 67P.ivo://ivoa.net/std/epntap#table-2.0granule_uidInternal table row index, which must be unique within the table. 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.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.maxdoublenullablec1minLongitude on body, lower limit.degpos.bodyrc.lon;stat.mindoublenullablec1maxLongitude on body, upper limitdegpos.bodyrc.lon;stat.maxdoublenullablec2minLatitude on body, lower limit.degpos.bodyrc.lat;stat.mindoublenullablec2maxLatitude on body, upper limitdegpos.bodyrc.lat;stat.maxdoublenullablec3minAltitude from reference surface, lower limit.kmpos.bodyrc.alt;stat.mindoublenullablec3maxAltitude from reference surface, upper limitkmpos.bodyrc.alt;stat.maxdoublenullables_regionObsCore-like footprint, valid for celestial, spherical, or body-fixed framespos.outline;obs.fieldcharnullablec1_resol_minResolution in the first coordinate, lower limit.degpos.angResolution;stat.mindoublenullablec1_resol_maxResolution in the first coordinate, upper limitdegpos.angResolution;stat.maxdoublenullablec2_resol_minResolution in the second coordinate, lower limit.degpos.angResolution;stat.mindoublenullablec2_resol_maxResolution in the second coordinate, upper limitdegpos.angResolution;stat.maxdoublenullablec3_resol_minResolution in the third coordinate, lower limit.kmpos.resolution;stat.mindoublenullablec3_resol_maxResolution in the third coordinate, upper limitkmpos.resolution;stat.maxdoublenullablespatial_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_estsizeEstimated file size in kbyte.kbytephys.size;meta.fileintnullablefile_nameName of the data file only, case sensitivemeta.id;meta.filecharnullablepublisherA short string identifying the entity running the data service usedmeta.curationcharnullablethumbnail_urlURL of a thumbnail image with predefined size (png ~200 pix, for use in a client only)meta.ref.url;meta.previewcharnullableaccess_urlURL of the data file, case sensitive. If present, then access_format and access_estsize are mandatory.meta.ref.url;meta.filecharnullablesubsolar_longitudeLatitude of the sun according to 67Ppos.bodyrc.lonfloatnullablesubsolar_latitudeLongitude of the sun according to 67Ppos.bodyrc.latfloatnullableshape_modelThe name of the 3D model from which the illumination maps has been generated.meta.refcharnullableshape_model_urlThe access URL of the 3D model from which the illumination maps has been generated.meta.ref.urlcharnullablespatial_coordinate_descriptionThe coordinate system used for the simulation.meta.code.class;pos.framecharnullable