Table Description:
This table is available for ADQL queries and through the TAP endpoint.
Resource Description:
For a list of all services and tables belonging to this table's resource, see Information on resource '__system__/obscore'
To cite the table as such, we suggest the following BibTeX entry:
@MISC{vo:BIRA_IASB_Obscore, year=2011, title={{VESPA} PA team server Obscore Table}, author={Loic Trompet}, url={http://vespa-ae.oma.be/tableinfo/ivoa.ObsCore}, howpublished={{VO} resource provided by the {VESPA} PA team server} }
Sorted by DB column index. [Sort alphabetically]
Name | Table Head | Description | Unit | UCD |
---|---|---|---|---|
dataproduct_type | Product type | High level scientific classification of the data product, taken from an enumeration | N/A | meta.code.class |
dataproduct_subtype | Subtype | Data product specific type | N/A | meta.code.class |
calib_level | Calibration level | Amount of data processing that has been applied to the data [Note calib] | N/A | meta.code;obs.calib |
obs_collection | Collection | Name of a data collection (e.g., project name) this data belongs to | N/A | meta.id |
obs_id | Obs. Id | Unique identifier for an observation | N/A | meta.id |
obs_title | Title | Free-from title of the data set | N/A | meta.title;obs |
obs_publisher_did | Pub. DID | Dataset identifier assigned by the publisher. | N/A | meta.ref.ivoid |
obs_creator_did | Creator DID | Dataset identifier assigned by the creator. | N/A | meta.id |
access_url | Access URL | The URL at which to obtain the data set. | N/A | meta.ref.url |
access_format | Media Type | MIME type of the resource at access_url | N/A | meta.code.mime |
access_estsize | Size | Estimated size of data product | kbyte | phys.size;meta.file |
target_name | Target Name | Object a targeted observation targeted | N/A | meta.id;src |
target_class | Target Class | Class of the target object (star, QSO, ...) | N/A | src.class |
s_ra | RA | RA of (center of) observation, ICRS | deg | pos.eq.ra |
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_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 |
t_min | Min. t | Lower bound of times represented in the data set | d | time.start;obs.exposure |
t_max | T_max | Upper bound of times represented in the data set | d | time.end;obs.exposure |
t_exptime | Exp. Time | Total exposure time | s | time.duration;obs.exposure |
t_resolution | Res. t | Minimal significant time interval along the time axis | s | time.resolution |
em_min | λ_min | Minimal wavelength represented within the data set | m | em.wl;stat.min |
em_max | λ_max | Maximal wavelength represented within the data set | m | em.wl;stat.max |
em_res_power | λ/Δλ | Spectral resolving power lambda/delta lambda | N/A | spect.resolution |
o_ucd | Obs. UCD | UCD for the product's observable | N/A | meta.ucd |
pol_states | Pol. States | List of polarization states in the data set | N/A | meta.code;phys.polarization |
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 |
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 |
t_xel | |t| | Number of elements (typically pixels) along the time axis. | N/A | meta.number |
em_xel | |λ| | Number of elements (typically pixels) along the spectral axis. | N/A | meta.number |
pol_xel | |Pol| | Number of elements (typically pixels) along the polarization axis. | N/A | meta.number |
s_pixel_scale | Pix. Scale | Sampling period in world coordinate units along the spatial axis | arcsec | phys.angSize;instr.pixel |
em_ucd | Spect. UCD | Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy) | N/A | meta.ucd |
preview | Preview | URL of a preview (low-resolution, quick-to-retrieve representation) of the data. | N/A | meta.ref.url;meta.preview |
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 |
Columns that are parts of indices are marked like this.
VO nerds may sometimes need VOResource XML for this table.
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) |