voccdb.epn_coreivo://padc.obspm.planeto/voccdb/q/epn_coreParis Astronomical Data CentreJosselin DesmarsPADC2025-02-26T14:03:46ZJosselin Desmars

Observatoire de Paris PADC, 61 av de l'Observatoire 75014 Paris, France

vo.paris@obspm.frsolar-system-astronomynatural-satellites The VOccDB database provides prediction and parameters of stellar occultations by the main planetary satellites. Observations of a stellar occultations help to better determine the size and the shape of the occulting body, as well as its astrometric position at the milli-arcsecond level precision. Only the main moons of giant planets Jupiter, Saturn, Uranus and Neptune are considered in the event prediction database. Predictions are provided over period 2023-2032, up to visual magnitude 12 for the biggest satellites, and magnitude 14 for other satellites. For each stellar occultation event prediction, the database provides circumstances and observational data, date and timing of the occultation, star position and magnitude, excepted duration, etc.http://voparis-tap-planeto.obspm.fr/tableinfo/voccdb.epn_coreCatalogUniversityResearchAmateurIsServedByPADC TAP Server on voparis-tap-planeto.obspm.fr TAP servicehttp://voparis-tap-planeto.obspm.fr/tapvoccdb The VOccDB database provides prediction and parameters of stellar occultations by the main planetary satellites. Observations of a stellar occultations help to better determine the size and the shape of the occulting body, as well as its astrometric position at the milli-arcsecond level precision. Only the main moons of giant planets Jupiter, Saturn, Uranus and Neptune are considered in the event prediction database. Predictions are provided over period 2023-2032, up to visual magnitude 12 for the biggest satellites, and magnitude 14 for other satellites. For each stellar occultation event prediction, the database provides circumstances and observational data, date and timing of the occultation, star position and magnitude, excepted duration, etc.voccdb.epn_core The VOccDB database provides prediction and parameters of stellar occultations by the main planetary satellites. Observations of a stellar occultations help to better determine the size and the shape of the occulting body, as well as its astrometric position at the milli-arcsecond level precision. Only the main moons of giant planets Jupiter, Saturn, Uranus and Neptune are considered in the event prediction database. Predictions are provided over period 2023-2032, up to visual magnitude 12 for the biggest satellites, and magnitude 14 for other satellites. For each stellar occultation event prediction, the database provides circumstances and observational data, date and timing of the occultation, star position and magnitude, excepted duration, etc.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.maxdoublenullablec1minRight Ascension (ICRS), lower limit.degpos.eq.ra;stat.mindoublenullablec1maxRight Ascension (ICRS), upper limitdegpos.eq.ra;stat.maxdoublenullablec2minDeclination (ICRS), lower limit.degpos.eq.dec;stat.mindoublenullablec2maxDeclination (ICRS), upper limitdegpos.eq.dec;stat.maxdoublenullablec3minDistance from coordinate origin, lower limit.AUpos.distance;stat.mindoublenullablec3maxDistance from coordinate origin, upper limitAUpos.distance;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.AUpos.resolution;stat.mindoublenullablec3_resol_maxResolution in the third coordinate, upper limitAUpos.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.titlecharnullablethumbnail_urlURL of a thumbnail image with predefined size (png ~200 pix, for use in a client only)meta.ref.url;meta.previewcharnullabledatalink_urlLink to a datalink document for this datasetmeta.ref.urlcharnullablealt_target_nameProvides alternative target name if more common (e.g. comets); multiple identifiers can be separated by hashesmeta.id;srccharnullablepublisherA short string identifying the entity running the data service usedmeta.curationcharnullablebib_referenceBibcode or DOI preferred if available, or other bibliographic identifier or URLmeta.bibcharnullablespatial_coordinate_descriptionID of specific coordinate system and version or properties.meta.code.class;pos.framecharnullablespatial_originDefines the frame originmeta.ref;pos.framecharnullabletime_scaleDefaults to UTC in data services; takes values from http://www.ivoa.net/rdf/time_scale otherwisetime.scalecharnullableraRight ascensiondegpos.eq.ra;meta.maindoublenullabledecDeclinationdegpos.eq.dec;meta.maindoublenullableearth_distance_minMin Earth-target distanceAUpos.distance;stat.mindoublenullableearth_distance_maxMax Earth-target distanceAUpos.distance;stat.maxdoublenullabletarget_apparent_radiusApparent radius of the targetarcsecphys.angSize;srcdoublenullablemean_radiusMean radius of a solar system object.kmphys.size.radiusdoublenullablemagnitudeApparent magnitudemagphot.magdoublenullableevent_typeType of event from a controlled vocabulary (meteor_shower, fireball, lunar_flash, comet_tail_crossing...)meta.code.classcharnullableevent_statusOne of prediction, observation, or utilitymeta.code.statuscharnullableutc_eventDate of the occultation (in ISO format), as UTC at geocentertime;obscharnullabletdb_eventDate of the occultation (in julian days), as TDB at geocenterdtime;obsdoublenullablediff_tdb_utcTDB-UTC in seconds, calculated at the time of publicationstimedoublenullablemoon_elongElongation of the Moon at the time of the occultationdegpos.angDistancedoublenullablemoon_phaseSun-Earth-Moon phase angle at the time of the occultationdegpos.phaseAngdoublenullablesolar_elongSolar elongation of the target at the time of the occultationdegpos.angDistancedoublenullableseparation_close_appAngular distance between star and target at closest approach from geocentredegpos.angDistancedoublenullablenorth_pole_anglePosition angle of the target wrt star at close approach from geocentre (positive eastward)degpos.posAngdoublenullablemax_durationMaximum duration of the occultationstime.duration;stat.maxdoublenullablerelative_velocityRelative velocity of the occultationkm/sphys.veloc;obs.occultdoublenullableephemeris_sourceEphemeris source of the occulting bodymeta.id;pos.ephemcharnullablebessel_xFirst component of Besselian element (x) in Earth's radiuspos.cartesian.x;obs.occultdoublenullablebessel_ySecond component of Besselian element (y) in Earth's radiuspos.cartesian.y;obs.occultdoublenullablebessel_vxThird component of Besselian element (vx) in Earth's radius/dayphys.veloc;pos.cartesian.x;obs.occultdoublenullablebessel_vyFourth component of Besselian element (vy) in Earth's radius/dayphys.veloc;pos.cartesian.y;obs.occultdoublenullablegreenwich_apparent_sideral_timeGreenwich apparent sideral time at the time of the occultationradpos.eq.ha;obs.occultdoublenullablemag_dropDrop in magnitude of the occultationmagphot.mag;arith.variationdoublenullablestar_raRight ascension (ICRF) of the occulted star at the time of the occultation from the geocenterdegpos.eq.radoublenullablestar_decDeclination (ICRF) of the occulted star at the time of the occultation from the geocenterdegpos.eq.decdoublenullableerror_star_raerror on the Right ascension of the occulted star at the time of the occultationmasmeta.code.error;pos.eq.radoublenullableerror_star_decerror on the Declination of the occulted star at the time of the occultationmasmeta.code.error;pos.eq.decdoublenullablestar_gaia_idGaia star identifier (GDR3)meta.idcharnullablestar_g_magGaia star magnitude (GDR3)magphot.magdoublenullablestar_rp_magGaia RP star magnitude (GDR3)magphot.magdoublenullablestar_h_magH magnitude of the star (2MASS)magphot.magdoublenullablestar_ruwe_gaiaRUWE of the Gaia starmeta.code.qualdoublenullablestar_duplicity_flagDuplicity flag of the Gaia star (0: no duplicity, 1: duplicity)meta.codeintnullabletarget_eclipsed_flagEclipsed target flag of the target (0: no eclipse, 1: eclipsed)meta.codeintnullablestar_planet_ang_distAngular separation between the planet and satellite centersarcsecpos.angDistancedoublenullable