Information on Service 'CTAO-SDC Cone Search Service'

Further access options are discussed below

CTAO Science Data Challenge test data

For a list of all services and tables belonging to this service's resource, see Information on resource 'CTAO-SDC'

Overview

You can access this service using:

form -- an interface for web browsers through an HTML form
scs.xml -- a standard SCS interface as defined by the IVOA to access catalog-type data; SCS clients use http://voparis-tap-he.obspm.fr/ctao_sdc/q/cone/scs.xml? to access the service

Coverage

Intervals of messenger energies reflected in this resource: 1.5e+11 2.3e+14 eV

Time covered by this resource's data: 2026.23 2033.66

This service is published as follows:

Within the set(s) ivo_managed with the renderer dali
Within the set(s) ivo_managed,local with the renderer form
Within the set(s) ivo_managed with the renderer scs.xml

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

CTAO-SDC DataLink Service

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

Name	Table Head	Description	Unit	UCD
DEC	Delta (ICRS)	Declination (ICRS decimal)	deg	pos.eq.dec
hscs_pos	Position/Name	Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object	N/A	N/A
hscs_sr	Search radius	Search radius in arcminutes	N/A	N/A
maxrec	Match limit	Maximum number of records returned. Pass 0 to retrieve service parameters.	N/A	N/A
RA	Alpha (ICRS)	Right Ascension (ICRS decimal)	deg	pos.eq.ra
responseformat	Output Format	File format requested for output.	N/A	meta.code.mime
SR	Search Radius	Search radius	deg	N/A
verb	Verbosity	Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.	N/A	N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

Name	Table Head	Description	Unit	UCD
access_estsize	Size	Estimated size of data product	kbyte	phys.size;meta.file
access_format	Media Type	MIME type of the resource at access_url	N/A	meta.code.mime
access_url	Access URL	The URL at which to obtain the data set.	N/A	meta.ref.url
access_url_this	Download	URL for direct download of the event-list	N/A	meta.ref.url
analysis_mode	Analysis_mode	Data reduction/analysis mode	N/A	meta.code;obs.param
calib_level	Calibration level	Amount of data processing that has been applied to the data Note calib	N/A	meta.code;obs.calib
coverage	Coverage	introduces an ascii (ST)MOC, v2 (2D footprint on celestial, spherical, or body-related frames, possibly including time)	N/A	pos.outline;obs.field
datalink	DL	URL of a datalink document for this dataset	N/A	meta.ref.url
dataproduct_type	Product type	High level scientific classification of the data product, taken from an enumeration	N/A	meta.code.class
em_max	λ_max	Maximal wavelength represented within the data set	m	em.wl;stat.max
em_min	λ_min	Minimal wavelength represented within the data set	m	em.wl;stat.min
em_ref_energy	Em_ref_energy	Energy at which the ObsCore spectral characterization attributes em_res_power, em_resolution are defined	eV	meta.ref;em.energy;em
em_ref_oaa	Em_ref_oaa	Off-axis angle (i.e., the angular separation of the target or source from the telescope optical axis) at which the ObsCore spectral characterization attributes em_res_power, em_resolution are defined	deg	pos.posAng;instr.offset;em
em_res_power	λ/Δλ	Spectral resolving power lambda/delta lambda	N/A	spect.resolution
em_ucd	Spect. UCD	Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy)	N/A	meta.ucd
em_xel	\|λ\|	Number of elements (typically pixels) along the spectral axis.	N/A	meta.number
energy_max	Energy_max	Energy associated to the ObsCore attribute em_min, describing the maximum energy of the dataset	eV	em.energy;stat.max
energy_min	Energy_min	Energy associated to the ObsCore attribute em_max, describing the minimum energy of the dataset	eV	em.energy;stat.min
ev_xel	Ev_xel	Number of events in an event list	N/A	meta.number;obs.event
event_type	Event_type	Event subset indicator (e.g., data quality flag for the events)	N/A	meta.code.qual;obs.event
facility_name	Facility	Name of the facility at which data was taken	N/A	meta.id;instr.tel
instrument_name	Instrument	Name of the instrument that produced the data	N/A	meta.id;instr
lfn	LFN	Logical File Name in Sciuence Archive	N/A	meta.ref.url
messenger	Messenger	Messenger particle type (e.g., photon, cosmicray, neutrino, pdgid-13)	N/A	N/A
o_ucd	Obs. UCD	UCD for the product's observable	N/A	meta.ucd
obs_collection	Collection	Name of a data collection (e.g., project name) this data belongs to	N/A	meta.id
obs_creator_did	Creator DID	Dataset identifier assigned by the creator.	N/A	meta.id
obs_id	Obs. Id	Unique identifier for an observation	N/A	meta.id
obs_mode	Obs_mode	Observation mode of an observation	N/A	meta.code;obs.param
obs_publisher_did	Pub. DID	Dataset identifier assigned by the publisher.	N/A	meta.ref.ivoid
obs_title	Title	Free-from title of the data set	N/A	meta.title;obs
pointing_mode	Pointing_mode	Pointing mode of an observation	N/A	meta.code;obs.param
pol_states	Pol. States	List of polarization states in the data set	N/A	meta.code;phys.polarization
pol_xel	\|Pol\|	Number of elements (typically pixels) along the polarization axis.	N/A	meta.number
preview	Preview	URL of a preview (low-resolution, quick-to-retrieve representation) of the data.	N/A	meta.ref.url;meta.preview
s_dec	Dec	Dec of (center of) observation, ICRS	deg	pos.eq.dec
s_fov	FoV	Approximate spatial extent for the region covered by the observation	deg	phys.angSize;instr.fov
s_pixel_scale	Pix. Scale	Sampling period in world coordinate units along the spatial axis	arcsec	phys.angSize;instr.pixel
s_ra	RA	RA of (center of) observation, ICRS	deg	pos.eq.ra
s_ref_energy	S_ref_energy	Energy at which the ObsCore spatial characterization attributes s_fov, s_region, s_resolution are defined	eV	meta.ref;em.energy;pos
s_ref_oaa	S_ref_oaa	Off-axis angle (i.e., the angular separation of the target or source from the telescope optical axis) at which the ObsCore spatial characterization attributes s_fov, s_region, s_resolution are defined	deg	pos.posAng;instr.offset;pos
s_region	coverage	Region covered by the observation, as a polygon	N/A	pos.outline;obs.field
s_resolution	Space Res.	Best spatial resolution within the data set	arcsec	pos.angResolution
s_xel1	\|X\|	Number of elements (typically pixels) along the first spatial axis.	N/A	meta.number
s_xel2	\|Y\|	Number of elements (typically pixels) along the second spatial axis.	N/A	meta.number
scan_mode	Scan_mode	Scan mode of an observation	N/A	meta.code;obs.param
scs_id	Scs_id	observation id for simple cone search	N/A	meta.id;meta.main
t_exptime	Exp. Time	Total exposure time	s	time.duration;obs.exposure
t_intervals	T_intervals	List of observation intervals or stable/good time intervals describing the exact observation time coverage as a TMOC	N/A	N/A
t_max	Max. t	Upper bound of times represented in the data set	d	time.end;obs.exposure
t_min	Min. t	Lower bound of times represented in the data set	d	time.start;obs.exposure
t_resolution	Res. t	Minimal significant time interval along the time axis	s	time.resolution
t_xel	\|t\|	Number of elements (typically pixels) along the time axis.	N/A	meta.number
target_class	Target Class	Class of the target object (star, QSO, ...)	N/A	src.class
target_name	Target Name	Object a targeted observation targeted	N/A	meta.id;src
tracking_mode	Tracking_mode	Tracking mode of an observation (e.g., sidereal rate, moving target [solar system] tracking, drift scans)	N/A	meta.code;obs.param

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

Name	Table Head	Description	Unit	UCD	Verb. Level
access_url	Access URL	The URL at which to obtain the data set.	N/A	meta.ref.url	1
s_ra	RA	RA of (center of) observation, ICRS	deg	pos.eq.ra	1
s_dec	Dec	Dec of (center of) observation, ICRS	deg	pos.eq.dec	1
datalink	DL	URL of a datalink document for this dataset	N/A	meta.ref.url	1
access_url_this	Download	URL for direct download of the event-list	N/A	meta.ref.url	1
lfn	LFN	Logical File Name in Sciuence Archive	N/A	meta.ref.url	1
dataproduct_type	Product type	High level scientific classification of the data product, taken from an enumeration	N/A	meta.code.class	5
obs_id	Obs. Id	Unique identifier for an observation	N/A	meta.id	5
obs_title	Title	Free-from title of the data set	N/A	meta.title;obs	5
obs_publisher_did	Pub. DID	Dataset identifier assigned by the publisher.	N/A	meta.ref.ivoid	5
access_format	Media Type	MIME type of the resource at access_url	N/A	meta.code.mime	5
access_estsize	Size	Estimated size of data product	kbyte	phys.size;meta.file	5
s_fov	FoV	Approximate spatial extent for the region covered by the observation	deg	phys.angSize;instr.fov	5
calib_level	Calibration level	Amount of data processing that has been applied to the data Note calib	N/A	meta.code;obs.calib	10
t_min	Min. t	Lower bound of times represented in the data set	d	time.start;obs.exposure	10
t_max	Max. t	Upper bound of times represented in the data set	d	time.end;obs.exposure	10
t_exptime	Exp. Time	Total exposure time	s	time.duration;obs.exposure	10
em_min	λ_min	Minimal wavelength represented within the data set	m	em.wl;stat.min	10
em_max	λ_max	Maximal wavelength represented within the data set	m	em.wl;stat.max	10
s_xel1	\|X\|	Number of elements (typically pixels) along the first spatial axis.	N/A	meta.number	10
s_xel2	\|Y\|	Number of elements (typically pixels) along the second spatial axis.	N/A	meta.number	10
t_xel	\|t\|	Number of elements (typically pixels) along the time axis.	N/A	meta.number	10
em_xel	\|λ\|	Number of elements (typically pixels) along the spectral axis.	N/A	meta.number	10
pol_xel	\|Pol\|	Number of elements (typically pixels) along the polarization axis.	N/A	meta.number	10
s_pixel_scale	Pix. Scale	Sampling period in world coordinate units along the spatial axis	arcsec	phys.angSize;instr.pixel	10
obs_collection	Collection	Name of a data collection (e.g., project name) this data belongs to	N/A	meta.id	15
obs_creator_did	Creator DID	Dataset identifier assigned by the creator.	N/A	meta.id	15
target_name	Target Name	Object a targeted observation targeted	N/A	meta.id;src	15
s_region	coverage	Region covered by the observation, as a polygon	N/A	pos.outline;obs.field	15
s_resolution	Space Res.	Best spatial resolution within the data set	arcsec	pos.angResolution	15
t_resolution	Res. t	Minimal significant time interval along the time axis	s	time.resolution	15
em_res_power	λ/Δλ	Spectral resolving power lambda/delta lambda	N/A	spect.resolution	15
o_ucd	Obs. UCD	UCD for the product's observable	N/A	meta.ucd	15
pol_states	Pol. States	List of polarization states in the data set	N/A	meta.code;phys.polarization	15
facility_name	Facility	Name of the facility at which data was taken	N/A	meta.id;instr.tel	15
instrument_name	Instrument	Name of the instrument that produced the data	N/A	meta.id;instr	15
em_ucd	Spect. UCD	Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy)	N/A	meta.ucd	15
preview	Preview	URL of a preview (low-resolution, quick-to-retrieve representation) of the data.	N/A	meta.ref.url;meta.preview	15
target_class	Target Class	Class of the target object (star, QSO, ...)	N/A	src.class	20
ev_xel	Ev_xel	Number of events in an event list	N/A	meta.number;obs.event	20
s_ref_energy	S_ref_energy	Energy at which the ObsCore spatial characterization attributes s_fov, s_region, s_resolution are defined	eV	meta.ref;em.energy;pos	20
em_ref_energy	Em_ref_energy	Energy at which the ObsCore spectral characterization attributes em_res_power, em_resolution are defined	eV	meta.ref;em.energy;em	20
s_ref_oaa	S_ref_oaa	Off-axis angle (i.e., the angular separation of the target or source from the telescope optical axis) at which the ObsCore spatial characterization attributes s_fov, s_region, s_resolution are defined	deg	pos.posAng;instr.offset;pos	20
em_ref_oaa	Em_ref_oaa	Off-axis angle (i.e., the angular separation of the target or source from the telescope optical axis) at which the ObsCore spectral characterization attributes em_res_power, em_resolution are defined	deg	pos.posAng;instr.offset;em	20
t_intervals	T_intervals	List of observation intervals or stable/good time intervals describing the exact observation time coverage as a TMOC	N/A	N/A	20
energy_min	Energy_min	Energy associated to the ObsCore attribute em_max, describing the minimum energy of the dataset	eV	em.energy;stat.min	20
energy_max	Energy_max	Energy associated to the ObsCore attribute em_min, describing the maximum energy of the dataset	eV	em.energy;stat.max	20
obs_mode	Obs_mode	Observation mode of an observation	N/A	meta.code;obs.param	20
tracking_mode	Tracking_mode	Tracking mode of an observation (e.g., sidereal rate, moving target [solar system] tracking, drift scans)	N/A	meta.code;obs.param	20
scan_mode	Scan_mode	Scan mode of an observation	N/A	meta.code;obs.param	20
pointing_mode	Pointing_mode	Pointing mode of an observation	N/A	meta.code;obs.param	20
analysis_mode	Analysis_mode	Data reduction/analysis mode	N/A	meta.code;obs.param	20
event_type	Event_type	Event subset indicator (e.g., data quality flag for the events)	N/A	meta.code.qual;obs.event	20
messenger	Messenger	Messenger particle type (e.g., photon, cosmicray, neutrino, pdgid-13)	N/A	N/A	20
coverage	Coverage	introduces an ascii (ST)MOC, v2 (2D footprint on celestial, spherical, or body-related frames, possibly including time)	N/A	pos.outline;obs.field	20
scs_id	Scs_id	observation id for simple cone search	N/A	meta.id;meta.main	20
dataproduct_subtype	Subtype	Data product specific type	N/A	meta.code.class	25
source_table	Source Table	Name of a TAP-queriable table this data originates from. This source table usually provides more information on the the data than what is given in obscore. See the TAP_SCHEMA of the originating TAP server for details.	N/A	meta.id;meta.table	25

Citation Info

VOResource XML (that's something exclusively for VO nerds)

Note calib

The calib_level flag takes the following values:

0	Raw Instrumental data requiring instrument-specific tools
1	Instrumental data processable with standard tools
2	Calibrated, science-ready data without instrument signature
3	Enhanced data products (e.g., mosaics)

Metadata

Identifier

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Description

Keywords

Creator

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Data updated