Table information for 'voccdb.epn_core'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: 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.

For a list of all services and tables belonging to this table's resource, see Information on resource 'Predictions of stellar occultations by the main planetary satellites'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:voccdb_epn_core,
  year=2024,
  title={Predictions of stellar occultations by the main planetary satellites},
  author={Josselin Desmars and {PADC}},
  url={http://voparis-tap-planeto.obspm.fr/tableinfo/voccdb.epn_core},
  howpublished={{VO} resource provided by the {PADC} {TAP} Server on voparis-tap-planeto.obspm.fr}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
granule_uid Granule_uid Internal table row index, which must be unique within the table. Can be alphanumeric. N/A meta.id
granule_gid Granule_gid Common to granules of same type (e.g. same map projection, or geometry data products). Can be alphanumeric. N/A meta.id
obs_id Obs_id Associates granules derived from the same data (e.g. various representations/processing levels). Can be alphanumeric, may be the ID of original observation. N/A meta.id;obs
dataproduct_type Dataproduct_type The 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. [Note et_prod] N/A meta.code.class
target_name Target_name Standard IAU name of target (from a list related to target class), case sensitive N/A meta.id;src
target_class Target_class Type of target, from a controlled vocabulary. N/A src.class
time_min Time_min Acquisition start time (in JD), as UTC at time_refposition d time.start;obs
time_max Time_max Acquisition stop time (in JD), as UTC at time_refposition d time.end;obs
time_sampling_step_min Time_sampling_step_min Sampling time for measurements of dynamical phenomena, lower limit. s time.resolution;stat.min
time_sampling_step_max Time_sampling_step_max Sampling time for measurements of dynamical phenomena, upper limit s time.resolution;stat.max
time_exp_min Time_exp_min Integration time of the measurement, lower limit. s time.duration;obs.exposure;stat.min
time_exp_max Time_exp_max Integration time of the measurement, upper limit s time.duration;obs.exposure;stat.max
spectral_range_min Spectral_range_min Spectral range (frequency), lower limit. Hz em.freq;stat.min
spectral_range_max Spectral_range_max Spectral range (frequency), upper limit Hz em.freq;stat.max
spectral_sampling_step_min Spectral_sampling_step_min Spectral sampling step, lower limit. Hz em.freq;spect.binSize;stat.min
spectral_sampling_step_max Spectral_sampling_step_max Spectral sampling step, upper limit Hz em.freq;spect.binSize;stat.max
spectral_resolution_min Spectral_resolution_min Spectral resolution, lower limit. N/A spect.resolution;stat.min
spectral_resolution_max Spectral_resolution_max Spectral resolution, upper limit N/A spect.resolution;stat.max
c1min C1min Right Ascension (ICRS), lower limit. deg pos.eq.ra;stat.min
c1max C1max Right Ascension (ICRS), upper limit deg pos.eq.ra;stat.max
c2min C2min Declination (ICRS), lower limit. deg pos.eq.dec;stat.min
c2max C2max Declination (ICRS), upper limit deg pos.eq.dec;stat.max
c3min C3min Distance from coordinate origin, lower limit. AU pos.distance;stat.min
c3max C3max Distance from coordinate origin, upper limit AU pos.distance;stat.max
s_region S_region ObsCore-like footprint, valid for celestial, spherical, or body-fixed frames N/A pos.outline;obs.field
c1_resol_min C1_resol_min Resolution in the first coordinate, lower limit. deg pos.angResolution;stat.min
c1_resol_max C1_resol_max Resolution in the first coordinate, upper limit deg pos.angResolution;stat.max
c2_resol_min C2_resol_min Resolution in the second coordinate, lower limit. deg pos.angResolution;stat.min
c2_resol_max C2_resol_max Resolution in the second coordinate, upper limit deg pos.angResolution;stat.max
c3_resol_min C3_resol_min Resolution in the third coordinate, lower limit. AU pos.resolution;stat.min
c3_resol_max C3_resol_max Resolution in the third coordinate, upper limit AU pos.resolution;stat.max
spatial_frame_type Spatial_frame_type Flavor of coordinate system, defines the nature of coordinates. From a controlled vocabulary, where 'none' means undefined. N/A meta.code.class;pos.frame
incidence_min Incidence_min Incidence angle (solar zenithal angle) during data acquisition, lower limit. deg pos.incidenceAng;stat.min
incidence_max Incidence_max Incidence angle (solar zenithal angle) during data acquisition, upper limit deg pos.incidenceAng;stat.max
emergence_min Emergence_min Emergence angle during data acquisition, lower limit. deg pos.emergenceAng;stat.min
emergence_max Emergence_max Emergence angle during data acquisition, upper limit deg pos.emergenceAng;stat.max
phase_min Phase_min Phase angle during data acquisition, lower limit. deg pos.phaseAng;stat.min
phase_max Phase_max Phase angle during data acquisition, upper limit deg pos.phaseAng;stat.max
instrument_host_name Instrument_host_name Standard name of the observatory or spacecraft N/A meta.id;instr.obsty
instrument_name Instrument_name Standard name of instrument N/A meta.id;instr
measurement_type Measurement_type UCD(s) defining the data, with multiple entries separated by hash (#) characters. N/A meta.ucd
processing_level Processing_level Dataset-related encoding, or simplified CODMAC calibration level [Note et_cal] N/A meta.calibLevel
creation_date Creation_date Date of first entry of this granule N/A time.creation
modification_date Modification_date Date of last modification (used to handle mirroring) N/A time.processing
release_date Release_date Start of public access period N/A time.release
service_title Service_title Title of resource (an acronym really, will be used to handle multiservice results) N/A meta.title
thumbnail_url Thumbnail_url URL of a thumbnail image with predefined size (png ~200 pix, for use in a client only) N/A meta.ref.url;meta.preview
datalink_url Datalink Link to a datalink document for this dataset N/A meta.ref.url
alt_target_name Alt_target_name Provides alternative target name if more common (e.g. comets); multiple identifiers can be separated by hashes N/A meta.id;src
publisher Publisher A short string identifying the entity running the data service used N/A meta.curation
bib_reference Bib_reference Bibcode or DOI preferred if available, or other bibliographic identifier or URL N/A meta.bib
spatial_coordinate_description Spatial_coordinate_description ID of specific coordinate system and version or properties. N/A meta.code.class;pos.frame
spatial_origin Spatial_origin Defines the frame origin N/A meta.ref;pos.frame
time_scale Time_scale Defaults to UTC in data services; takes values from http://www.ivoa.net/rdf/time_scale otherwise N/A time.scale
ra Ra Right ascension deg pos.eq.ra;meta.main
dec Dec Declination deg pos.eq.dec;meta.main
earth_distance_min Earth_distance_min Min Earth-target distance AU pos.distance;stat.min
earth_distance_max Earth_distance_max Max Earth-target distance AU pos.distance;stat.max
target_apparent_radius Target_apparent_radius Apparent radius of the target arcsec phys.angSize;src
mean_radius Mean_radius Mean radius of a solar system object. km phys.size.radius
magnitude Magnitude Apparent magnitude mag phot.mag
event_type Event_type Type of event from a controlled vocabulary (meteor_shower, fireball, lunar_flash, comet_tail_crossing...) N/A meta.code.class
event_status Event_status One of prediction, observation, or utility N/A meta.code.status
UTC_event Utc_event Date of the occultation (in ISO format), as UTC at geocenter N/A time;obs
TDB_event Tdb_event Date of the occultation (in julian days), as TDB at geocenter d time;obs
diff_TDB_UTC Diff_tdb_utc TDB-UTC in seconds, calculated at the time of publication s time
moon_elong Moon_elong Elongation of the Moon at the time of the occultation deg pos.angDistance
moon_phase Moon_phase Sun-Earth-Moon phase angle at the time of the occultation deg pos.phaseAng
solar_elong Solar_elong Solar elongation of the target at the time of the occultation deg pos.angDistance
separation_close_app Separation_close_app Angular distance between star and target at closest approach from geocentre deg pos.angDistance
north_pole_angle North_pole_angle Position angle of the target wrt star at close approach from geocentre (positive eastward) deg pos.posAng
max_duration Max_duration Maximum duration of the occultation s time.duration;stat.max
relative_velocity Relative_velocity Relative velocity of the occultation km/s phys.veloc;obs.occult
ephemeris_source Ephemeris_source Ephemeris source of the occulting body N/A meta.id;pos.ephem
bessel_x Bessel_x First component of Besselian element (x) in Earth's radius N/A pos.cartesian.x;obs.occult
bessel_y Bessel_y Second component of Besselian element (y) in Earth's radius N/A pos.cartesian.y;obs.occult
bessel_vx Bessel_vx Third component of Besselian element (vx) in Earth's radius/day N/A phys.veloc;pos.cartesian.x;obs.occult
bessel_vy Bessel_vy Fourth component of Besselian element (vy) in Earth's radius/day N/A phys.veloc;pos.cartesian.y;obs.occult
greenwich_apparent_sideral_time Greenwich_apparent_sideral_time Greenwich apparent sideral time at the time of the occultation rad pos.eq.ha;obs.occult
mag_drop Mag_drop Drop in magnitude of the occultation mag phot.mag;arith.variation
star_ra Star_ra Right ascension (ICRF) of the occulted star at the time of the occultation from the geocenter deg pos.eq.ra
star_dec Star_dec Declination (ICRF) of the occulted star at the time of the occultation from the geocenter deg pos.eq.dec
error_star_ra Error_star_ra error on the Right ascension of the occulted star at the time of the occultation mas meta.code.error;pos.eq.ra
error_star_dec Error_star_dec error on the Declination of the occulted star at the time of the occultation mas meta.code.error;pos.eq.dec
star_gaia_id Star_gaia_id Gaia star identifier (GDR3) N/A meta.id
star_G_mag star_G_mag Gaia star magnitude (GDR3) mag phot.mag
star_RP_mag star_RP_mag Gaia RP star magnitude (GDR3) mag phot.mag
star_H_mag star_H_mag H magnitude of the star (2MASS) mag phot.mag
star_RUWE_gaia star_RUWE_gaia RUWE of the Gaia star N/A meta.code.qual
star_duplicity_flag Star_duplicity_flag Duplicity flag of the Gaia star (0: no duplicity, 1: duplicity) N/A meta.code
target_eclipsed_flag Target_eclipsed_flag Eclipsed target flag of the target (0: no eclipse, 1: eclipsed) N/A meta.code
star_planet_ang_dist Star_planet_ang_dist Angular separation between the planet and satellite centers arcsec pos.angDistance

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes