Table information for 'tco_echelle_spectra.data'

General

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

Resource Description:

One-dimensional reduced optical stellar spectra obtained at the Three College Observatory (TCO) with the eShel spectrograph on the 0.81-m telescope. This collection includes the full supplied archive, including the stars in the separately published hot-supergiant subset and additional stellar targets.

Wavelengths are computed from the original linear IRAF WCS in Angstroms and served in meters. Fluxes are relative; continuum normalization is recorded only where supplied in the metadata. Resolving power R=12000 is adopted from the existing collection documentation, not measured separately for each spectrum.

For a list of all services and tables belonging to this table's resource, see Information on resource 'TCO Optical Echelle Spectral Archive'

Resource Reference URL: Resource info

Citing this table

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

@MISC{vo:tco_echelle_spec,
  year=2026,
  title={{TCO} Optical Echelle Spectral Archive},
  author={Danford, S. and Miroshnichenko, A.},
  url={https://dachs.fai.kz/tableinfo/tco_echelle_spectra.data},
  howpublished={{VO} resource provided by the {FAI} archives}
}

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
accref Product key Access key for the data N/A meta.ref.url;meta.dataset
accsize File size Size of the data in bytes byte N/A
biascor Bias corrected True if bias correction was applied. N/A meta.code
bpixcor Bad pixels True if bad-pixel map correction was applied. N/A meta.code
bunit Flux unit Flux unit from supplied companion metadata, or relative for this collection. N/A meta.unit
calib_level Calib Level ObsCore-style calibration level. Merged relative flux spectra are level 2. N/A meta.code.qual
camera Camera Camera listed in the FITS header. N/A meta.id;instr.det
coordinate_status Position status Coordinate interpretation or reason sky position is omitted. N/A meta.code.qual
cosmicr Cosmic rays Cosmic ray removal method. N/A meta.code
darkcor Dark corrected True if dark correction was applied. N/A meta.code
datalink DataLink A DataLink document for this spectrum, providing SODA access and the original file. N/A meta.ref.url
dataorig Data origin Origin of the data with respect to KazVO/FAI. N/A meta.note
detnam Detector Detector name listed in the FITS header. N/A meta.id;instr.det
embargo Embargo ends Date the data will become/became public yr N/A
flatcor Flat corrected True if flat-field correction was applied. N/A meta.code
fluxcal Flux calibration Flux calibration status from supplied companion metadata, or relative for this collection. N/A meta.code
helcor Heliocentric corrected True if heliocentric correction was applied. N/A meta.code
instrument Instrument Instrument or spectrograph used for the observation. N/A instr
mime Type MIME type of the file served N/A meta.code.mime
norm Normalized True if the merged spectrum is continuum-normalized. N/A meta.code
observer Observer Observer(s) listed in the FITS header. N/A meta.id;obs.observer
origfile Original file Original FITS file name in the supplied archive. N/A meta.id
owner Owner Owner of the data N/A N/A
puborg Publisher Publishing archive or organisation. N/A meta.curation
raw_dec Original Dec Original header declination, in degrees or sexagesimal degrees. N/A meta.note
raw_ra Original RA Original header RA, in numeric hours or sexagesimal hours. N/A meta.note
repaired_cards Card syntax Cards whose syntax was repaired in memory; source FITS is unchanged. N/A meta.note
specrp R Spectral resolving power lambda/dlambda. N/A spect.resolution
ssa_aperture Aperture Angular diameter of aperture deg phys.angSize;instr.fov
ssa_bandpass Bandpass Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger. N/A instr.bandpass
ssa_binSize Spect. Bin Bin size in wavelength m em.wl;spect.binSize
ssa_cdate Proc. Date Processing/Creation date N/A time;meta.dataset
ssa_collection Collection A short handle naming the collection this spectrum belongs to. N/A N/A
ssa_creationtype Using Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction) N/A N/A
ssa_creator Creator Creator of the datasets included here. N/A N/A
ssa_creatorDID C. DID Dataset identifier assigned by the creator N/A meta.id
ssa_csysName Sys System RA and Dec are given in N/A N/A
ssa_cversion C. Version Creator assigned version for this dataset (will be incremented when this particular item is changed). N/A meta.version;meta.dataset
ssa_datasource Src Method of generation for the data (one of survey, pointed, theory, custom, artificial). N/A N/A
ssa_dateObs Date Obs. Midpoint of exposure (MJD) d time.epoch
ssa_dstitle Title A compact and descriptive designation of the dataset. N/A meta.title;meta.dataset
ssa_dstype Data type Type of data (spectrum, time series, etc) N/A N/A
ssa_fluxcalib Calib Flux Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). N/A N/A
ssa_fluxSI [Flux] Flux/magnitude conversion factor in Osuna-Salgado convention N/A N/A
ssa_fluxStatError Err. flux Statistical error in flux N/A stat.error;phot.flux.density;em
ssa_fluxSysError Sys. Err flux Systematic error in flux N/A stat.error.sys;phot.flux.density;em
ssa_fluxucd UCD(flux) UCD of the flux column N/A meta.ucd
ssa_fluxunit unit(flux) Unit of the flux column N/A meta.unit
ssa_instrument Instrument Instrument or code used to produce these datasets N/A meta.id;instr
ssa_length Length Number of points in the spectrum N/A N/A
ssa_location Location ICRS location of aperture center deg pos.eq
ssa_model Model Data model name and version N/A N/A
ssa_pdate Pub. Date Date last published. N/A N/A
ssa_pubDID P. DID Dataset identifier assigned by the publisher N/A meta.ref.ivoid
ssa_publisher Publisher Publisher of the datasets included here. N/A meta.curation
ssa_redshift z Redshift of target object N/A src.redshift
ssa_reference Ref. URL or bibcode of a publication describing this data. N/A meta.bib.bibcode
ssa_region Coverage Rough coverage based on location and aperture. N/A pos.outline;obs.field
ssa_snr SNR Signal-to-noise ratio estimated for this dataset N/A stat.snr
ssa_spaceCalib Calib. Spc Type of calibration in spatial coordinates N/A meta.code.qual
ssa_spaceError Err. Spc Statistical error in position deg stat.error;pos.eq
ssa_spaceRes Res. Spc Spatial resolution of data deg pos.angResolution
ssa_speccalib Calib. Spect. Type of wavelength calibration N/A meta.code.qual
ssa_specend Band end Upper value of spectral coordinate m em.wl;stat.max
ssa_specext Bandwidth Width of the spectrum m instr.bandwidth
ssa_specmid Mid. Band Midpoint of region covered in this dataset m instr.bandpass
ssa_specres Spec. Res. Resolution (in meters of wavelength) on the spectral axis m spect.resolution;em.wl
ssa_specstart Band start Lower value of spectral coordinate m em.wl;stat.min
ssa_spectralSI [Spectral] Spectral conversion factor in Osuna-Salgado convention N/A N/A
ssa_spectralucd UCD(spectral) UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths. N/A meta.ucd
ssa_spectralunit unit(spectral) Unit of the spectral column N/A meta.unit
ssa_spectStatError Err. Spect Statistical error in wavelength m stat.error;em
ssa_spectSysError Sys. Err. Spect Systematic error in wavelength m stat.error.sys;em
ssa_targclass Ob. cls Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) N/A src.class
ssa_targetpos Obj. pos Equatorial (ICRS) position of the target object. N/A pos.eq;src
ssa_targname Object Common name of object observed. N/A meta.id;src
ssa_timeExt Exp. Time Exposure duration s time.duration
ssa_timeSI [Time] Time conversion factor in Osuna-Salgado convention. N/A N/A
target_source Target provenance Source of the target name. N/A meta.note
telescope Telescope Telescope used for the observation. N/A instr.tel
tellcor Telluric corrected True if telluric correction was applied. N/A meta.code
wave_max λ max Maximum wavelength covered by the spectrum. m em.wl;stat.max
wave_min λ min Minimum wavelength covered by the spectrum. m em.wl;stat.min
wavecal Wavecal True if the spectrum is wavelength calibrated. N/A meta.code

Columns that are parts of indices are marked like this.

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