Table information for 'evn.main'

General

Table Description: Visibility data from the EVN Data Archive.

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

Resource Description: The data archive of the European VLBI Network (EVN). This archive contains Very Long Baseline Interferometry (VLBI) visibility data from observations of the EVN, the most sensitive VLBI array in the world. In addition, the archive makes available various correlator and pipeline products that give an impression of the data quality. In some cases, preliminary images of calibrators and target sources are also available.

For a list of all services and tables belonging to this table's resource, see Information on resource 'EVN Data Archive'

Citing this table

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

@MISC{vo:evn_main,
  year=2022,
  title={{EVN} Data Archive},
  author={Mark Kettenis},
  url={https://evn-vo.jive.eu/tableinfo/evn.main},
  howpublished={{VO} resource provided by the {EVN} Data Archive}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
accref Product key Access key for the data N/A meta.ref.url
owner Owner Owner of the data N/A N/A
embargo Embargo ends Date the data will become/became public a N/A
mime Type MIME type of the file served N/A meta.code.mime
accsize File size Size of the data in bytes byte VOX:Image_FileSize
_nparts _nparts N/A N/A meta.number
access_url Access URL The URL at which to obtain the data set. N/A meta.ref.url
s_region coverage Region covered by the observation, as a polygon N/A pos.outline;obs.field
s_dec Dec Dec of (center of) observation, ICRS deg pos.eq.dec
obs_publisher_did Pub. DID Dataset identifier assigned by the publisher. N/A meta.ref.ivoid
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_res_power λ/Δλ Spectral resolving power lambda/delta lamda N/A spect.resolution
em_xel |λ| Number of elements (typically pixels) along the spectral axis. N/A meta.number
t_exptime Exp. Time Total exposure time s time.duration;obs.exposure
s_fov FoV Approximate spatial extent for the region covered by the observation deg phys.angSize;instr.fov
obs_id Obs. Id Unique identifier for an observation N/A meta.id
pol_xel |Pol| Number of elements (typically pixels) along the polarization axis. N/A meta.number
s_ra RA RA of (center of) observation, ICRS deg pos.eq.ra
access_estsize Size Estimated size of data product kbyte phys.size;meta.file
s_resolution Space Res. Best spatial resolution within the data set arcsec pos.angResolution
target_name Target Name Object a targeted observation targeted N/A meta.id;src
t_max T_max Upper bound of times represented in the data set, as MJD d time.end;obs.exposure
t_min T_min Lower bound of times represented in the data set, as MJD 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

Columns that are parts of indices are marked like this.

Other

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VOResource

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