SPARCL - SPARCL Field Catalog (SFC)

SPARCL Field Catalog

List of Fields available via Retrieve

CORE fields (common to all Data Sets)

Name Storage Units Description Default All
wavemax CORE AA Maximum value of wavelength coverage in Angstroms ✘ ✔
wavemin CORE AA Minimum value of wavelength coverage in Angstroms ✘ ✔
dec CORE deg Declination in degrees ✔ ✔
ra CORE deg Right Ascension in degrees ✔ ✔
exptime CORE second Exposure time in seconds ✘ ✔
site CORE — [Categorical] Site of observations ✘ ✔
datasetgroup CORE — [Categorical] Common name for a coherent set of spectra published as a single release (e.g., SDSS_BOSS) ✘ ✔
specid CORE — Dataset-specific spectrum identifier (may not be unique) ✔ ✔
instrument CORE — [Categorical] Instrument used for observation ✘ ✔
redshift CORE — Measured redshift, or radial velocity in units of redshift ✘ ✔
targetid CORE — Dataset-specific photometric target identifier ✘ ✔
specprimary CORE — Whether an entry is the primary spectrum for a given target object ✘ ✔
data_release CORE — [Categorical] Data release of a given record (with a common data structure, e.g., SDSS-DR16, BOSS-DR16) ✘ ✔
spectype CORE — [Categorical] Spectral type of the object (STAR, GALAXY, QSO) ✘ ✔
telescope CORE — [Categorical] Telescope used for the observation ✘ ✔
redshift_err CORE — Uncertainty on the measured redshift, or radial velocity in units of redshift ✘ ✔
sparcl_id CORE — Universally Unique Identifier for spectrum in SPARCL ✔ ✔
extra_files CORE — Additional files read for ingest ✘ ✘
file CORE — File used for this record ✘ ✘
dateobs CORE — Range of observational dates for a given spectrum (single value for a single date) ✘ ✔
redshift_warning CORE — Bitmask with warning on redshift result ✘ ✔
dateobs_center CORE — Central value of the dateobs range ✘ ✔
updated CORE — Date and time when the record was created/updated ✘ ✘
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AUX and SPECTRA fields (unique to each Data Set)

Data Set: SDSS-DR16, AUX fields

Name Storage Units Description Default All
ancillary_target1 AUX — BOSS ancillary science target selection information at plate design ✘ ✔
ancillary_target2 AUX — BOSS ancillary target selection information at plate design ✘ ✔
anyandmask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ANDMASK ✘ ✔
anyormask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ORMASK ✘ ✔
bluefiber AUX — Set to 1 if this hole was designated a blue fiber, 0 if designated a red fiber (high redshift LRGs are preferentially in red fibers) ✘ ✔
boss_specobj_id AUX — Identification number internal to BOSS for SPECBOSS=1 objects ✘ ✔
boss_target1 AUX — Primary (science) target flags for BOSS targets ✘ ✔
boss_target2 AUX — Always set to zero (placeholder for BOSS target flags never used) ✘ ✔
calibflux AUX nanomaggy ugriz fluxes used for calibrations ✘ ✔
calibflux_ivar AUX nanomaggy-2 Inverse variances of ugriz fluxes used for calibrations ✘ ✔
chi68p AUX — 68-th percentile value of abs(chi) of the best-fit synthetic spectrum to the actual spectrum (around 1.0 for a good fit) ✘ ✔
chunk AUX — Name of tiling chunk that this spectrum was tiled in (boss1, boss2, etc), important for tracking large-scale structure samples ✘ ✔
class_noqso AUX — Spectroscopic classification for Z_NOQSO redshift ✘ ✔
class_person AUX — Visual-inspection classification (0=not inspected or unknown, 1=star, 2=narrow emission-line galaxy, 3=QSO, 4=galaxy) ✘ ✔
comments_person AUX — Visual-inspection comments ✘ ✔
cx AUX — x of Normal unit vector in J2000 ✘ ✔
cy AUX — y of Normal unit vector in J2000 ✘ ✔
cz AUX — z of Normal unit vector in J2000 ✘ ✔
deredsn2 AUX — Dereddened overall signal-to-noise-squared measure for plate (only for BOSS spectrograph plates) ✘ ✔
designid AUX — Design identification number for plate ✘ ✔
dof AUX — Number of degrees of freedom in best fit ✘ ✔
eboss_target0 AUX — SEQUELS, TDSS and SPIDERS target selection flags ✘ ✔
eboss_target1 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target2 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target_id AUX — EBOSS unique target identifier for every spectroscopic target ✘ ✔

Data Set: SDSS-DR16, SPECTRA fields

Name Storage Units Description Default All
flux SPECTRA 1e-17 erg cm-2 s-1 AA-1 Coadded calibrated flux ✔ ✔
ivar SPECTRA 1e+34 cm4 s2 AA2 erg-2 Inverse variance of flux ✘ ✔
mask SPECTRA — and_mask ✘ ✔
model SPECTRA 1e-17 erg cm-2 s-1 AA-1 Pipeline best model fit used for classification and redshift ✘ ✔
sky SPECTRA 1e-17 erg cm-2 s-1 AA-1 Subtracted sky flux ✘ ✔
wavelength SPECTRA AA Wavelength in units of Angstroms ✔ ✔
wave_sigma SPECTRA pixel Line-spread function width (sigma of approximating Gaussian) in units of number of pixel ✘ ✔

Data Set: BOSS-DR16, AUX fields

Name Storage Units Description Default All
ancillary_target1 AUX — BOSS ancillary science target selection information at plate design ✘ ✔
ancillary_target2 AUX — BOSS ancillary target selection information at plate design ✘ ✔
anyandmask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ANDMASK ✘ ✔
anyormask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ORMASK ✘ ✔
bluefiber AUX — Set to 1 if this was requested to be a blue fiber target, 0 if it was a red fiber (in BOSS high redshift LRGs are requested to be on red fibers) ✘ ✔
boss_specobj_id AUX — Identification number internal to BOSS for SPECBOSS=1 objects ✘ ✔
boss_target1 AUX — Primary (science) target flags for BOSS targets ✘ ✔
boss_target2 AUX — Always set to zero (placeholder for BOSS target flags never used) ✘ ✔
calibflux AUX nanomaggy ugriz fluxes used for calibrations ✘ ✔
calibflux_ivar AUX nanomaggy-2 Inverse variances of ugriz fluxes used for calibrations ✘ ✔
chi68p AUX — 68-th percentile value of abs(chi) of the best-fit synthetic spectrum to the actual spectrum (around 1.0 for a good fit) ✘ ✔
chunk AUX — Name of tiling chunk that this spectrum was tiled in (boss1, boss2, etc), important for tracking large-scale structure samples ✘ ✔
class_noqso AUX — Spectroscopic classification for Z_NOQSO redshift ✘ ✔
class_person AUX — Visual-inspection classification (0=not inspected or unknown, 1=star, 2=narrow emission-line galaxy, 3=QSO, 4=galaxy) ✘ ✔
comments_person AUX — Visual-inspection comments ✘ ✔
cx AUX — x of Normal unit vector in J2000 ✘ ✔
cy AUX — y of Normal unit vector in J2000 ✘ ✔
cz AUX — z of Normal unit vector in J2000 ✘ ✔
deredsn2 AUX — Dereddened overall signal-to-noise-squared measure for plate (only for BOSS spectrograph plates) ✘ ✔
designid AUX — Design identification number for plate ✘ ✔
dof AUX — Number of degrees of freedom in best fit ✘ ✔
eboss_target0 AUX — SEQUELS, TDSS and SPIDERS target selection flags ✘ ✔
eboss_target1 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target2 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target_id AUX — EBOSS unique target identifier for every spectroscopic target ✘ ✔

Data Set: BOSS-DR16, SPECTRA fields

Name Storage Units Description Default All
flux SPECTRA 1e-17 erg cm-2 s-1 AA-1 Coadded calibrated flux ✔ ✔
ivar SPECTRA 1e+34 cm4 s2 AA2 erg-2 Inverse variance of flux ✘ ✔
mask SPECTRA — and_mask ✘ ✔
model SPECTRA 1e-17 erg cm-2 s-1 AA-1 Pipeline best model fit used for classification and redshift ✘ ✔
sky SPECTRA 1e-17 erg cm-2 s-1 AA-1 Subtracted sky flux ✘ ✔
wavelength SPECTRA AA Wavelength in units of Angstroms ✔ ✔
wave_sigma SPECTRA pixel Line-spread function width (sigma of approximating Gaussian) in units of number of pixel ✘ ✔

Data Set: DESI-DR1, AUX fields

Name Storage Units Description Default All
numobs_init AUX — Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS ✘ ✔
objtype AUX — Object type: TGT, SKY, NON, BAD ✘ ✔
obsconditions AUX — Bit-coded of allowed observing conditions ✘ ✔
plate_dec AUX deg Declination to be used by PlateMaker ✘ ✔
plate_ra AUX deg Right Ascension to be used by PlateMaker ✘ ✔
pmdec AUX mas year-1 Reference catalog proper motion in the Dec direction ✘ ✔
pmra AUX mas year-1 Reference catalog proper motion in the RA direction ✘ ✔
priority_init AUX — Target initial priority from target selection bitmasks and OBSCONDITIONS ✘ ✔
program AUX — DESI program type - BRIGHT, DARK, BACKUP, OTHER ✘ ✔
ref_epoch AUX year Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia ✘ ✔
rms_delta_x AUX mm RMS (over exposures) of the fiber difference between measured and requested CS5 X location on focal plane ✘ ✔
rms_delta_y AUX mm RMS (over exposures) of the fiber difference between measured and requested CS5 Y location on focal plane ✘ ✔
scnd_target AUX — Target selection bitmask for secondary programs ✘ ✔
spgrpval AUX — Value corresponding to the grouping type indicated in the spgrp column. This is the same as the healpix column ✘ ✔
std_fiber_dec AUX arcsec Standard deviation (over exposures) of DEC of actual fiber position ✘ ✔
std_fiber_ra AUX arcsec Standard deviation (over exposures) of RA of actual fiber position ✘ ✔
subpriority AUX — Random subpriority [0-1] to break assignment ties ✘ ✔
subtype AUX — Spectral subtype ✘ ✔
survey AUX — Survey name ✘ ✔
sv1_bgs_target AUX — BGS (bright time program) target selection bitmask for SV1 ✘ ✔
sv1_desi_target AUX — DESI (dark time program) target selection bitmask for SV1 ✘ ✔
sv1_mws_target AUX — MWS (bright time program) target selection bitmask for SV1 ✘ ✔
sv1_scnd_target AUX — Secondary target selection bitmask for SV1 ✘ ✔
sv2_bgs_target AUX — BGS (bright time program) target selection bitmask for SV2 ✘ ✔
sv2_desi_target AUX — DESI (dark time program) target selection bitmask for SV2 ✘ ✔

Data Set: DESI-DR1, SPECTRA fields

Name Storage Units Description Default All
flux SPECTRA 1e-17 erg cm-2 s-1 AA-1 Coadded calibrated flux ✔ ✔
ivar SPECTRA 1e+34 cm4 s2 AA2 erg-2 Inverse variance of flux ✘ ✔
wave_sigma SPECTRA AA Line-spread function width (sigma of approximating Gaussian) in units of Angstroms ✘ ✔
mask SPECTRA — Mask value ✘ ✔
model SPECTRA 1e-17 erg cm-2 s-1 AA-1 Pipeline best model fit ✘ ✔
wavelength SPECTRA AA Wavelength in units of Angstroms ✔ ✔

Data Set: DESI-EDR, AUX fields

Name Storage Units Description Default All
std_fiber_dec AUX arcsec Standard deviation (over exposures) of DEC of actual fiber position ✘ ✔
std_fiber_ra AUX arcsec Standard deviation (over exposures) of RA of actual fiber position ✘ ✔
mean_mjd AUX days Mean (over exposures) of the Modified Julian Date (MJD) when the shutter was opened ✘ ✔
plate_dec AUX deg Declination to be used by PlateMaker ✘ ✔
mean_fiber_ra AUX deg Mean (over exposures) RA of actual fiber position ✘ ✔
plate_ra AUX deg Right Ascension to be used by PlateMaker ✘ ✔
mean_fiber_dec AUX deg Mean (over exposures) DEC of actual fiber position ✘ ✔
pmdec AUX mas year-1 Reference catalog proper motion in the Dec direction ✘ ✔
pmra AUX mas year-1 Reference catalog proper motion in the RA direction ✘ ✔
mean_delta_x AUX mm Mean (over exposures) fiber difference between measured and requested CS5 X location on focal plane ✘ ✔
rms_delta_y AUX mm RMS (over exposures) of the fiber difference between measured and requested CS5 Y location on focal plane ✘ ✔
rms_delta_x AUX mm RMS (over exposures) of the fiber difference between measured and requested CS5 X location on focal plane ✘ ✔
mean_delta_y AUX mm Mean (over exposures) fiber difference requested - actual CS5 Y location on focal plane ✘ ✔
ref_epoch AUX year Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia ✘ ✔
coadd_numnight AUX — Number of different nights included in the coadd for this target ✘ ✔
coeff AUX — Redrock template coefficients ✘ ✔
program AUX — DESI program type - BRIGHT, DARK, BACKUP, OTHER ✘ ✔
coadd_numtile AUX — Number of different tiles included in the coadd for this target ✘ ✔
cmx_target AUX — Target selection bitmask for commissioning ✘ ✔
deltachi2 AUX — Delta-chi-squared for template fit from Redrock ✘ ✔
sv1_scnd_target AUX — Secondary target selection bitmask for SV1 ✘ ✔
sv3_bgs_target AUX — BGS (bright time program) target selection bitmask for SV3 ✘ ✔
subtype AUX — Spectral subtype ✘ ✔
sv3_scnd_target AUX — Secondary target selection bitmask for SV3 ✘ ✔
numobs_init AUX — Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS ✘ ✔

Data Set: DESI-EDR, SPECTRA fields

Name Storage Units Description Default All
flux SPECTRA 1e-17 erg cm-2 s-1 AA-1 Coadded calibrated flux ✔ ✔
ivar SPECTRA 1e+34 cm4 s2 AA2 erg-2 Inverse variance of flux ✘ ✔
mask SPECTRA — Mask value ✘ ✔
model SPECTRA 1e-17 erg cm-2 s-1 AA-1 Pipeline best model fit ✘ ✔
wavelength SPECTRA AA Wavelength in units of Angstroms ✔ ✔
wave_sigma SPECTRA AA Line-spread function width (sigma of approximating Gaussian) in units of Angstroms ✘ ✔

Data Set: SDSS-DR17-test, AUX fields

Name Storage Units Description Default All
ancillary_target1 AUX — BOSS ancillary science target selection information at plate design ✘ ✔
ancillary_target2 AUX — BOSS ancillary target selection information at plate design ✘ ✔
anyandmask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ANDMASK ✘ ✔
anyormask AUX — For each bit, records whether any pixel in the spectrum has that bit set in its ORMASK ✘ ✔
bluefiber AUX — Set to 1 if this hole was designated a blue fiber, 0 if designated a red fiber (high redshift LRGs are preferentially in red fibers) ✘ ✔
boss_specobj_id AUX — Identification number internal to BOSS for SPECBOSS=1 objects ✘ ✔
boss_target1 AUX — Primary (science) target flags for BOSS targets ✘ ✔
boss_target2 AUX — Always set to zero (placeholder for BOSS target flags never used) ✘ ✔
calibflux AUX nanomaggy ugriz fluxes used for calibrations ✘ ✔
calibflux_ivar AUX nanomaggy-2 Inverse variances of ugriz fluxes used for calibrations ✘ ✔
chi68p AUX — 68-th percentile value of abs(chi) of the best-fit synthetic spectrum to the actual spectrum (around 1.0 for a good fit) ✘ ✔
chunk AUX — Name of tiling chunk that this spectrum was tiled in (boss1, boss2, etc), important for tracking large-scale structure samples ✘ ✔
class_noqso AUX — Spectroscopic classification for Z_NOQSO redshift ✘ ✔
class_person AUX — Visual-inspection classification (0=not inspected or unknown, 1=star, 2=narrow emission-line galaxy, 3=QSO, 4=galaxy) ✘ ✔
comments_person AUX — Visual-inspection comments ✘ ✔
cx AUX — x of Normal unit vector in J2000 ✘ ✔
cy AUX — y of Normal unit vector in J2000 ✘ ✔
cz AUX — z of Normal unit vector in J2000 ✘ ✔
deredsn2 AUX — Dereddened overall signal-to-noise-squared measure for plate (only for BOSS spectrograph plates) ✘ ✔
designid AUX — Design identification number for plate ✘ ✔
dof AUX — Number of degrees of freedom in best fit ✘ ✔
eboss_target1 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target2 AUX — eBOSS, TDSS and SPIDERS target selection flags for main eBOSS survey ✘ ✔
eboss_target_id AUX — EBOSS unique target identifier for every spectroscopic target ✘ ✔
elodie_bv AUX mag (B-V) color index for ELODIE star ✘ ✔

Data Set: SDSS-DR17-test, SPECTRA fields

Name Storage Units Description Default All
flux SPECTRA 1e-17 erg cm-2 s-1 AA-1 Coadded calibrated flux ✔ ✔
ivar SPECTRA 1e+34 cm4 s2 AA2 erg-2 Inverse variance of flux ✘ ✔
mask SPECTRA — and_mask ✘ ✔
model SPECTRA 1e-17 erg cm-2 s-1 AA-1 Pipeline best model fit used for classification and redshift ✘ ✔
sky SPECTRA 1e-17 erg cm-2 s-1 AA-1 Subtracted sky flux ✘ ✔
wavelength SPECTRA AA Wavelength in units of Angstroms ✔ ✔
wave_sigma SPECTRA pixel Line-spread function width (sigma of approximating Gaussian) in units of number of pixel ✘ ✔
SPARCL Field Cat(alog)

NSF NOIRLab

AURA CSDC


For further information, contact:
datalab-spectro@noirlab.edu
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