Table information for 'gaia_dem.epn_core'

General

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

Resource Description: GAIA-DEM
GAIA-DEM is a database of Differential Emission Measure (DEM) maps. The DEM is a measure of the thermal structure of the coronal plasma, representing the quantity of light emitting plasma along the line of sight, at different temperatures. In GAIA-DEM, the DEM is modelled by a specific function of temperature, namely a Gaussian of the logarithm of electron temperature. GAIA-DEM maps are then maps of the DEM maximum temperature, of the DEM integral (total Emission Measure), and DEM width (in temperature). These maps are obtained by inversion from the SDO/AIA EUV images in 6 coronal channels (9.4, 13.1, 17.1, 19.3, 21.1, and 33.5 nm). In addition, maps of the χ² for the inversion are provided.
GAIA-DEM is available from a specific interface at http://medoc-dem.ias.u-psud.fr, as well as part of the generic MEDOC interface which is currently located at https://idoc-medoc.ias.u-psud.fr. These interfaces are based on the CNES SiTools2 framework. GAIA-DEM is also available from IDL and Python scripts, using a specialization of the generic SiTools2 IDL and Python clients developed by MEDOC.

For a list of all services and tables belonging to this table's resource, see Information on resource 'SDO GAIA-DEM'

Resource Reference URL: http://medoc-dem.ias.u-psud.fr

Citing this table

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

@MISC{vo:gaia_dem_epn_cor,
  year=2018,
  title={{SDO} {GAIA}-{DEM}},
  author={{IDOC}: Integrated Data and Operating Center},
  url={http://idoc-dachs.ias.u-psud.fr/tableinfo/gaia_dem.epn_core},
  howpublished={{VO} resource provided by the {IDOC}: Integrated Data and Operating Center}
}

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
access_estsize Access_estsize Estimated file size in kbyte. kbyte phys.size;meta.file
access_format Access_format File format type (RFC 6838 Media Type a.k.a. MIME type) N/A meta.code.mime
access_url Access_url URL of the data file, case sensitive. If present, then access_format and access_estsize are mandatory. N/A meta.ref.url;meta.file
c1_resol_max C1_resol_max Resolution in the first coordinate, upper limit deg pos.angResolution;stat.max
c1_resol_min C1_resol_min Resolution in the first coordinate, lower limit. deg pos.angResolution;stat.min
c1max C1max Right Ascension (ICRS), upper limit deg pos.eq.ra;stat.max
c1min C1min Right Ascension (ICRS), lower limit. deg pos.eq.ra;stat.min
c2_resol_max C2_resol_max Resolution in the second 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
c2max C2max Declination (ICRS), upper limit deg pos.eq.dec;stat.max
c2min C2min Declination (ICRS), lower limit. deg pos.eq.dec;stat.min
c3_resol_max C3_resol_max Resolution in the third coordinate, upper limit AU pos.resolution;stat.max
c3_resol_min C3_resol_min Resolution in the third coordinate, lower limit. AU pos.resolution;stat.min
c3max C3max Distance from coordinate origin, upper limit AU pos.distance;stat.max
c3min C3min Distance from coordinate origin, lower limit. AU pos.distance;stat.min
creation_date Creation_date Date of first entry of this granule N/A time.creation
datalink_url Datalink Datalinks and services for this objet N/A meta.ref.url;meta.datalink
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
emergence_max Emergence_max Emergence angle during data acquisition, upper limit deg pos.emergenceAng;stat.max
emergence_min Emergence_min Emergence angle during data acquisition, lower limit. deg pos.emergenceAng;stat.min
file_name File_name Name of the data file only, case sensitive N/A meta.id;meta.file
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
granule_uid Granule_uid Internal table row index, which must be unique within the table. Can be alphanumeric. N/A meta.id
incidence_max Incidence_max Incidence angle (solar zenithal angle) during data acquisition, upper limit deg pos.incidenceAng;stat.max
incidence_min Incidence_min Incidence angle (solar zenithal angle) during data acquisition, lower limit. deg pos.incidenceAng;stat.min
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
modification_date Modification_date Date of last modification (used to handle mirroring) N/A time.processing
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
phase_max Phase_max Phase angle during data acquisition, upper limit deg pos.phaseAng;stat.max
phase_min Phase_min Phase angle during data acquisition, lower limit. deg pos.phaseAng;stat.min
processing_level Processing_level Dataset-related encoding, or simplified CODMAC calibration level [Note et_cal] N/A meta.calibLevel
publisher Publisher A short string identifying the entity running the data service used N/A meta.curation
release_date Release_date Start of public access period N/A time.release
s_region S_region ObsCore-like footprint, valid for celestial, spherical, or body-fixed frames N/A pos.outline;obs.field
service_title Service_title Title of resource (an acronym really, will be used to handle multiservice results) N/A meta.title
spatial_coordinate_description Spatial_coordinate_description ID of specific coordinate system and version / properties N/A meta.code.class;pos.frame
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
spatial_origin Defines the frame origin meta.ref;pos.frame N/A meta.code.class;pos.frame
spectral_range_max Spectral_range_max Spectral range (frequency), upper limit Hz em.freq;stat.max
spectral_range_min Spectral_range_min Spectral range (frequency), lower limit. Hz em.freq;stat.min
spectral_resolution_max Spectral_resolution_max Spectral resolution, upper limit N/A spect.resolution;stat.max
spectral_resolution_min Spectral_resolution_min Spectral resolution, lower limit. N/A spect.resolution;stat.min
spectral_sampling_step_max Spectral_sampling_step_max Spectral sampling step, upper limit Hz em.freq;spect.binSize;stat.max
spectral_sampling_step_min Spectral_sampling_step_min Spectral sampling step, lower limit. Hz em.freq;spect.binSize;stat.min
target_class Target_class Type of target, from a controlled vocabulary. N/A src.class
target_distance_max Target_distance_max Max observer-target distance km pos.distance;stat.max
target_distance_min Target_distance_min Min observer-target distance km pos.distance;stat.min
target_name Target_name Standard IAU name of target (from a list related to target class), case sensitive N/A meta.id;src
target_time_max Target_time_max Max observing time in target frame N/A time.end;src
target_time_min Target_time_min Min observing time in target frame N/A time.start;src
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
time_exp_max Time_exp_max Integration time of the measurement, upper limit s time.duration;obs.exposure;stat.max
time_exp_min Time_exp_min Integration time of the measurement, lower limit. s time.duration;obs.exposure;stat.min
time_max Time_max Acquisition stop time (in JD), as UTC at time_refposition d time.end;obs
time_min Time_min Acquisition start time (in JD), as UTC at time_refposition d time.start;obs
time_sampling_step_max Time_sampling_step_max Sampling time for measurements of dynamical phenomena, upper limit s time.resolution;stat.max
time_sampling_step_min Time_sampling_step_min Sampling time for measurements of dynamical phenomena, lower limit. s time.resolution;stat.min

Columns that are parts of indices are marked like this.

Other

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VOResource

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Notes

Copyright and such: This research has been made at MEDOC