| Details of individual spectra. |
| The Spectrum table lists details of individual spectra observed during the survey. Note that a given target star may (and often will) be observed more than once during the survey, so a given targetID may have several entries in the table; furthermore, early data releases may well contain several pipeline processed versions of the same data for a given target. Required constraints:
|
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| specID | bigint | 8 | Spectrum identifier: unique identifier for each spectrum (4 MSB are the specFrameID; 4 LSB are the nSpec) | -99999999 | ||
| specFrameID | int | 4 | SpecFrame identifier of the SpecFrame from which the spectrum was extracted | -99999999 | ||
| targetID | bigint | 8 | Target identifer of the star being observed | -99999999 | ||
| nSpec | int | 4 | The number of the spectrum {catalogue TType keyword: velclass.Nspec+Fibinfo.Nspec,NoName4.NSPEC,NoName3.NSPEC} | -99999999 | ||
| nSpecOld | int | 4 | The number of the spectrum before unused fibres were culled (equivalent to the number of the fibre) {catalogue TType keyword: velclass.Nspec_old+Fibinfo.Nspec_old,NoName3.NSPEC_OLD} | -99999999 | ||
| cName | varchar | 16 | Object name formed from the coordinates of the object (can be used in place of object to give a unique name) {catalogue TType keyword: Fibinfo.Cname} | 'NONE' | ||
| type | varchar | 32 | M for programme objects or S for sky fibres {catalogue TType keyword: Fibinfo.TYPE,NoName4.TYPE,NoName3.TYPE} | 'NONE' | ||
| spClass | varchar | 8 | The spectral class (STAR, SKY or LOWSN; the latter two classes do not have spectral fits done for them) {catalogue TType keyword: Fibinfo.OBJ_CLASS,velclass.SPCLASS} | 'NONE' | ||
| mag | real | 4 | mag | A magnitude estimate {catalogue TType keyword: Fibinfo.MAGNITUDE,NoName4.MAGNITUDE} | -9.999995e+08 | |
| priority | int | 4 | Observation priority {catalogue TType keyword: Fibinfo.GES_RANK,Fibinfo.PRIORITY,NoName4.PRIORITY} | -99999999 | ||
| snr | real | 4 | The mean signal-to-noise ratio in the spectrum {catalogue TType keyword: Fibinfo.S_N,velclass.S_N} | -9.999995e+08 | ||
| skyOff | real | 4 | pixels | Offset to get the mean sky into coincidence with the current spectrum {catalogue TType keyword: Fibinfo.sky_off} | -9.999995e+08 | |
| skyScale | real | 4 | The scaling factor applied to the mean sky before subtracting from the current spectrum {catalogue TType keyword: Fibinfo.sky_scale,NoName4.SKY_SCALE} | -9.999995e+08 | ||
| expTime | real | 4 | seconds | Total integration time {catalogue TType keyword: Fibinfo.exptime} | -9.999995e+08 | |
| rmsTrace | real | 4 | pixels | The RMS of the fit to the curvature of the spectrum on the detector {catalogue TType keyword: Fibinfo.RMS_trace} | -9.999995e+08 | |
| rmsArc | real | 4 | Angstroms | The RMS of the wavelength solution {catalogue TType keyword: Fibinfo.RMS_arc,NoName4.RMS_ARC} | -9.999995e+08 | |
| resArc | real | 4 | The resolution of the arclines {catalogue TType keyword: Fibinfo.RES_arc} | -9.999995e+08 | ||
| fwhmArc | real | 4 | The FWHM of the arclines {catalogue TType keyword: Fibinfo.FWHM_arc} | -9.999995e+08 | ||
| ccfMax | real | 4 | The peak value of the cross correlation function {catalogue TType keyword: Fibinfo.CCFmax,NoName4.CCFMAX} | -9.999995e+08 | ||
| ccfWidth | real | 4 | km/s | Width of the peak of the cross correlation function {catalogue TType keyword: Fibinfo.ccfwidth} | -9.999995e+08 | |
| rvRedshift | real | 4 | km/s | The radial velocity measured from the cross correlation {catalogue TType keyword: Fibinfo.rv_redshift} | -9.999995e+08 | |
| rv | float | 8 | km/s | The measured radial velocity from the cross correlation {catalogue TType keyword: Fibinfo.RV,velclass.VEL} | -9.999995e+08 | |
| rvErr | float | 8 | km/s | Error on the measured radial velocity from the cross correlation {catalogue TType keyword: Fibinfo.RV_ERR,velclass.EVEL} | -9.999995e+08 | |
| rvVar | float | 8 | km/s | Variance? on the measured radial velocity from the cross correlation {catalogue TType keyword: Fibinfo.RV_VAR} | -9.999995e+08 | |
| vRot | float | 8 | km/s | The best fit rotational velocity {catalogue TType keyword: Fibinfo.VROT,velclass.VROT} | -9.999995e+08 | |
| vRotErr | float | 8 | km/s | Error on vRot {catalogue TType keyword: Fibinfo.VROT_ERR,NoName1.evrot} | -9.999995e+08 | |
| helioCor | real | 4 | km/s | The heliocentric correction {catalogue TType keyword: Fibinfo.Helio_cor,Fibinfo.HELIOCOR,NoName4.HELIO_COR} | -9.999995e+08 | |
| simcalCor | real | 4 | km/s | The correction to be applied to correct for wavelength drift calculated from simcal observations {catalogue TType keyword: Fibinfo.Simcal_cor,NoName4.SIMCAL_COR} | -9.999995e+08 | |
| simcalRms | real | 4 | km/s | The RMS on simcalCor {catalogue TType keyword: Fibinfo.Simcal_rms,NoName4.SIMCAL_RMS} | -9.999995e+08 | |
| skylineCor | real | 4 | km/s | The correction to be applied to correct for wavelength drift calculated from the sky lines in the observations {catalogue TType keyword: Fibinfo.Skyline_cor,NoName4.SKYLINE_COR} | -9.999995e+08 | |
| skylineRms | real | 4 | km/s | The RMS on skylineCor {catalogue TType keyword: Fibinfo.Skyline_rms,NoName4.SKYLINE_RMS} | -9.999995e+08 | |
| vacuumCor | real | 4 | km/s | The correction to be applied to the measured redshift if the spectral features in the template are defined in vacuum rather than at STP {catalogue TType keyword: Fibinfo.Vacuum_cor,NoName4.VACUUM_COR} | -9.999995e+08 | |
| bestTempl | varchar | 64 | A designation for the best fitting radial velocity template {catalogue TType keyword: Fibinfo.Best_tmpl,NoName4.BEST_TMPL} | 'NONE' | ||
| tmplTemp | real | 4 | K | The temperature for the best fitting radial velocity template {catalogue TType keyword: Fibinfo.Tmpl_temp,NoName4.TMPL_TEMP} | -9.999995e+08 | |
| tmplLogg | real | 4 | The value of log(g) for the best fitting radial velocity template {catalogue TType keyword: Fibinfo.Tmpl_logg,NoName4.TMPL_LOGG} | -9.999995e+08 | ||
| tmplFeH | real | 4 | The value of [Fe/H] for the best fitting radial velocity template {catalogue TType keyword: Fibinfo.Tmpl_feh,NoName4.TEMPL_FEH} | -9.999995e+08 | ||
| chi2dof | real | 4 | Chi-squared of the template fit {catalogue TType keyword: velclass.CHI2_DOF} | -9.999995e+08 | ||
| chi2cont | real | 4 | Chi-squared of the continuum-only fit {catalogue TType keyword: velclass.CHI2_CONT} | -9.999995e+08 | ||
| templDist | real | 4 | Something to do with the radial velocity template {catalogue TType keyword: velclass.TEMPL_DISTANCE} | -9.999995e+08 | ||
| logg | real | 4 | The value of log(g) of the best fitting template {catalogue TType keyword: velclass.LOGG} | -9.999995e+08 | ||
| logTeff | real | 4 | The value of log(Teff) of the best fitting template {catalogue TType keyword: velclass.LOGTEFF} | -9.999995e+08 | ||
| FeH | real | 4 | The value of [Fe/H] of the best fitting template {catalogue TType keyword: velclass.FEH} | -9.999995e+08 | ||
| deprecated | int | 4 | Deprecated flag: coded as current=0 or deprecated !=0 | 0 | meta.code | |
| Total length | 304 |