Table information for 'neocc.epn_core'

General

Table Description: A table of asteroids potentially colliding with Earth, together with current estimates for the orbit parameters. Previous estimates are available by joining with neocc.orbits.

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

Resource Description: NEO orbits and data

For a list of all services and tables belonging to this table's resource, see Information on resource 'NEOCC Database of the ESA Near Earth Objects Coordination Centre'

Citing this table

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

@MISC{vo:neocc_epn_core,
  year=2023,
  title={{NEOCC} Database of the {ESA} Near Earth Objects Coordination Centre},
  author={{ESA}'s Planetary Defence Office},
  url={http://dachs.neo.s2p.esa.int/tableinfo/neocc.epn_core},
  howpublished={{VO} resource provided by the {NEOCC} Tap Server}
}

Columns

Sorted by DB column index. [Sort alphabetically]

Name	Table Head	Description	Unit	UCD
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	(This data collection does not give coordinates)	N/A	N/A
c1max	C1max	(This data collection does not give coordinates)	N/A	N/A
c2min	C2min	(This data collection does not give coordinates)	N/A	N/A
c2max	C2max	(This data collection does not give coordinates)	N/A	N/A
c3min	C3min	(This data collection does not give coordinates)	N/A	N/A
c3max	C3max	(This data collection does not give coordinates)	N/A	N/A
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	(This data collection does not give coordinates)	N/A	N/A
c1_resol_max	C1_resol_max	(This data collection does not give coordinates)	N/A	N/A
c2_resol_min	C2_resol_min	(This data collection does not give coordinates)	N/A	N/A
c2_resol_max	C2_resol_max	(This data collection does not give coordinates)	N/A	N/A
c3_resol_min	C3_resol_min	(This data collection does not give coordinates)	N/A	N/A
c3_resol_max	C3_resol_max	(This data collection does not give coordinates)	N/A	N/A
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
semi_major_axis	Semi_major_axis	semi major axis (Ecliptic J2000.0) at standard epoch	AU	phys.size.smajAxis
inclination	Inclination	Inclination to the ecliptic (Ecliptic J2000.0) at standard epoch.	deg	src.orbital.inclination
eccentricity	Eccentricity	eccentricity (Ecliptic J2000.0) at standard epoch	N/A	src.orbital.eccentricity
mean_anomaly	Mean_anomaly	Mean anomaly (Ecliptic J2000.0) at standard epoch	deg	src.orbital.meanAnomaly
long_asc	Long_asc	Longitude of ascending node (Ecliptic J2000.0) at standard epoch	deg	src.orbital.node
arg_perihel	Arg_perihel	Argument of perihelion (Ecliptic J2000.0) at standard epoch	deg	src.orbital.periastron
epoch	Epoch	Standard epoch of orbital elements in MJD.	d	time.epoch
magnitude	Magnitude	Absolute magnitude. For small bodies, from HG magnitude system	mag	phys.magAbs
dynamical_type	Dynamical_type	Subdivision of the dynamical class, from a controlled vocabulary	N/A	meta.code.class;src
d_perihelion	D_perihelion	Distance of the asteroid at perihelion	AU	pos.distance;pos.heliocentric
d_aphelion	D_aphelion	Distance of the asteroid at aphelion	AU	pos.distance;pos.heliocentric
arg_perihel_error	Arg_perihel_error	RMS of the argument of Perihelion	deg	stat.error;src.orbital.periastron
eccentricity_error	Eccentricity_error	RMS of the eccentricity of the orbit	N/A	stat.error;src.orbital.eccentricity
inclination_error	Inclination_error	RMS of the inclination of the orbit to the ecliptic	deg	stat.error;src.orbital.inclination
long_asc_error	Long_asc_error	RMS of the longitude of ascending node_error	deg	stat.error;src.orbital.node
mean_anomaly_error	Mean_anomaly_error	RMS of the mean anomaly at the epoch	deg	stat.error;src.orbital.meanAnomaly
semi_major_axis_error	Semi_major_axis_error	RMS of orbital semimajor axis	AU	stat.error;phys.size.smajAxis
moid	Moid	Minimum Orbital Intersection Distance with Earth orbit	AU	pos.distance
orbit_period	Orbit Period	The period of the orbit	d	time.period.revolution

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes

Note et_prod
The following values are defined for this field:

im -- image

associated scalar fields with two spatial axes, e.g., images with multiple color planes like from multichannel or filter cameras. Preview images (e.g. map with axis and caption) also belong here. Conversely, all vectorial 2D fields are described as catalogue (see below).

ma -- map

scalar field/rasters with two spatial axes covering a large area and projected either on the sky or on a planetary body, associated to a Projection parameter (with a short enumerated list of possible values). This is mostly intended to identify complete coverages that can be used as reference basemaps.

sp-- spectrum

measurements organized primarily along a spectral axis, e.g., radiance spectra. This includes spectral aggregates (series of related spectra with non-connected spectral ranges, e.g., from several channels of the same instrument

ds -- dynamic spectrum

consecutive spectral measurements through time, organized as a time series. This typically implies successive spectra of the same target or field of view.

sc -- spectral cube

sets of spectral measurements with 1 or 2 D spatial coverage, e.g., imaging spectroscopy. The choice between Image and spectral_cube is related to the characteristics of the instrument (which dimension is most resolved and which dimensions are acquired simultaneously). The choice between dynamic_spectrum and spectral_cube is related to the uniformity of the field of view.

pr -- profile

scalar or vectorial measurements along 1 spatial dimension, e.g., atmospheric profiles, atmospheric paths, sub-surface profiles, traverses…

pf -- photometric profile

scalar or vectorial measurements along 1 angular dimension, e.g., phase or polarization curves, phase functions, emission-phase function sequences… typically associated to variations in illumination angle parameters.

vo -- volume

other measurements with 3 spatial dimensions, e.g., internal or atmospheric structures, including shells/shape models (3D surfaces).

mo -- movie

sets of chronological 2 D spatial measurements.

cu -- cube

multidimensional data with 3 or more axes, e.g., all that is not described by other 3 D data types such as spectral cubes or volume. This is mostly intended to accommodate unusual data with multiple dimensions.

ts -- time series

measurements organized primarily as a function of time (with exception of dynamical spectra and movies, i.e. usually a scalar quantity). Typical examples of time series include space-borne dust detector measurements, daily or seasonal curves measured at a given location (e.g., a lander), and light curves.

ca -- catalog

applies to a single granule providing a list of events, a catalog of object parameters, a list of features… It is good practice to describe the type of data included in the catalogue using a hash-separated-list (e.g., a table of spectra should be described by ca#sp, so that it will respond to a query for spectra).

ci -- catalogue item

applies when the service itself provides a catalogue, with entries described as individual granules. The service can be, e.g., a list of asteroid properties or spectral lines. Catalogue_item can be limited to scalar quantities (including strings), and possibly to a single element. This organization allows the user to search inside the catalogue from the TAP query interface.

sv -- spatial vector

vector information associated to localization, such as spatial footprints or a GIS-related element. This could contain a kml or geojson file (STC-S strings are provided though the s_region parameter, though). This includes maps of vectors, e.g., wind maps.

ev -- event

individual events, typically formatted in VOEvent. Characteristics are provided via the event_* parameters.
Note et_cal
CODMAC levels are:

1 -- raw

2 -- edited

3 -- calibrated

4 -- resampled

5 -- derived

6 -- ancillary

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