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| Storage | Field name | Units | Description | Default | All | Provenance field name | File | HDU |
|---|---|---|---|---|---|---|---|---|
| A | sv2_scnd_target | None | Secondary target selection bitmask for SV2 | False | True | SV2_SCND_TARGET | zall-pix-iron | 1 |
| A | survey | None | Survey name | False | True | SURVEY | zall-pix-iron | 1 |
| A | main_nspec | None | Number of coadded spectra for this TARGETID in Main survey | False | True | MAIN_NSPEC | zall-pix-iron | 1 |
| A | bgs_target | None | BGS (Bright Galaxy Survey) target selection bitmask | False | True | BGS_TARGET | zall-pix-iron | 1 |
| A | program | None | DESI program type - BRIGHT, DARK, BACKUP, OTHER | False | True | PROGRAM | zall-pix-iron | 1 |
| A | zcat_nspec | None | Number of coadded spectra for this TARGETID in this zcatalog | False | True | ZCAT_NSPEC | zall-pix-iron | 1 |
| A | desi_target | None | DESI (dark time program) target selection bitmask | False | True | DESI_TARGET | zall-pix-iron | 1 |
| A | sv3_scnd_target | None | Secondary target selection bitmask for SV3 | False | True | SV3_SCND_TARGET | zall-pix-iron | 1 |
| A | tsnr2_gpbbackup | None | GPBBACKUP template (S/N)^2 summed over BRZ | False | True | TSNR2_GPBBACKUP | zall-pix-iron | 1 |
| A | sv_nspec | None | Number of coadded spectra for this TARGETID in SV (SV1+2+3) | False | True | SV_NSPEC | zall-pix-iron | 1 |
| A | coadd_fiberstatus | None | Bitwise AND of the FIBERSTATUS values of the spectra used in the coadd | False | True | COADD_FIBERSTATUS | zall-pix-iron | 1 |
| A | pmdec | mas year-1 | Reference catalog proper motion in the Dec direction | False | True | PMDEC | zall-pix-iron | 1 |
| A | std_fiber_ra | arcsec | Standard deviation (over exposures) of RA of actual fiber position | False | True | STD_FIBER_RA | zall-pix-iron | 1 |
| A | sv2_mws_target | None | MWS (bright time program) target selection bitmask for SV2 | False | True | SV2_MWS_TARGET | zall-pix-iron | 1 |
| A | tsnr2_gpbbright | None | GPBBRIGHT template (S/N)^2 summed over B,R,Z | False | True | TSNR2_GPBBRIGHT | zall-pix-iron | 1 |
| A | sv1_mws_target | None | MWS (bright time program) target selection bitmask for SV1 | False | True | SV1_MWS_TARGET | zall-pix-iron | 1 |
| A | objtype | None | Object type: TGT, SKY, NON, BAD | False | True | OBJTYPE | zall-pix-iron | 1 |
| A | plate_ra | deg | Right Ascension to be used by PlateMaker | False | True | PLATE_RA | zall-pix-iron | 1 |
| A | coadd_numexp | None | Number of exposures included in the coadd for this target | False | True | COADD_NUMEXP | zall-pix-iron | 1 |
| A | sv3_desi_target | None | DESI (dark time program) target selection bitmask for SV3 | False | True | SV3_DESI_TARGET | zall-pix-iron | 1 |
| A | rms_delta_y | mm | RMS (over exposures) of the fiber difference between measured and requested CS5 Y location on focal plane | False | True | RMS_DELTA_Y | zall-pix-iron | 1 |
| A | ref_epoch | year | Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia | False | True | REF_EPOCH | zall-pix-iron | 1 |
| A | rms_delta_x | mm | RMS (over exposures) of the fiber difference between measured and requested CS5 X location on focal plane | False | True | RMS_DELTA_X | zall-pix-iron | 1 |
| A | sv3_mws_target | None | MWS (bright time program) target selection bitmask for SV3 | False | True | SV3_MWS_TARGET | zall-pix-iron | 1 |
| A | sv2_bgs_target | None | BGS (bright time program) target selection bitmask for SV2 | False | True | SV2_BGS_TARGET | zall-pix-iron | 1 |
| A | tsnr2_qso | None | QSO template (S/N)^2 summed over B,R,Z | False | True | TSNR2_QSO | zall-pix-iron | 1 |
| A | tsnr2_elg | None | ELG template (S/N)^2 summed over B,R,Z | False | True | TSNR2_ELG | zall-pix-iron | 1 |
| A | mean_fiber_ra | deg | Mean (over exposures) RA of actual fiber position | False | True | MEAN_FIBER_RA | zall-pix-iron | 1 |
| A | sv1_desi_target | None | DESI (dark time program) target selection bitmask for SV1 | False | True | SV1_DESI_TARGET | zall-pix-iron | 1 |
| A | mean_delta_x | mm | Mean (over exposures) fiber difference between measured and requested CS5 X location on focal plane | False | True | MEAN_DELTA_X | zall-pix-iron | 1 |
| A | healpix | None | HEALPixel containing this location at NSIDE=64 in the NESTED scheme | False | True | HEALPIX | zall-pix-iron | 1 |
| A | fa_target | None | Targeting bit internally used by fiberassign (linked with FA_TYPE) | False | True | FA_TARGET | zall-pix-iron | 1 |
| A | tsnr2_bgs | None | BGS template (S/N)^2 summed over B,R,Z | False | True | TSNR2_BGS | zall-pix-iron | 1 |
| A | mean_mjd | days | Mean (over exposures) of the Modified Julian Date (MJD) when the shutter was opened | False | True | MEAN_MJD | zall-pix-iron | 1 |
| A | tsnr2_lya | None | LYA template (S/N)^2 summed over B,R,Z | False | True | TSNR2_LYA | zall-pix-iron | 1 |
| A | deltachi2 | None | Delta-chi-squared for template fit from Redrock | False | True | DELTACHI2 | zall-pix-iron | 1 |
| A | scnd_target | None | Target selection bitmask for secondary programs | False | True | SCND_TARGET | zall-pix-iron | 1 |
| A | coadd_numtile | None | Number of different tiles included in the coadd for this target | False | True | COADD_NUMTILE | zall-pix-iron | 1 |
| A | coeff | None | Redrock template coefficients | False | True | COEFF | zall-pix-iron | 1 |
| A | coadd_numnight | None | Number of different nights included in the coadd for this target | False | True | COADD_NUMNIGHT | zall-pix-iron | 1 |
| A | tsnr2_gpbdark | None | GPBDARK template (S/N)^2 summed over BRZ | False | True | TSNR2_GPBDARK | zall-pix-iron | 1 |
| A | plate_dec | deg | Declination to be used by PlateMaker | False | True | PLATE_DEC | zall-pix-iron | 1 |
| A | main_primary | None | Boolean flag (True/False) for the primary coadded spectrum in Main survey | False | True | MAIN_PRIMARY | zall-pix-iron | 1 |
| A | mean_fiber_dec | deg | Mean (over exposures) DEC of actual fiber position | False | True | MEAN_FIBER_DEC | zall-pix-iron | 1 |
| A | subpriority | None | Random subpriority [0-1] to break assignment ties | False | True | SUBPRIORITY | zall-pix-iron | 1 |
| A | mean_psf_to_fiber_specflux | None | Mean of input exposures fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing | False | True | MEAN_PSF_TO_FIBER_SPECFLUX | zall-pix-iron | 1 |
| A | desiname | None | DESI JXXX.XXXX[+/-]YY.YYYY where X, Y are TARGET_{RA, DEC} truncated to 4 decimals | False | True | DESINAME | zall-pix-iron | 1 |
| A | spgrpval | None | Value corresponding to the grouping type indicated in the spgrp column. This is the same as the healpix column | False | True | SPGRPVAL | zall-pix-iron | 1 |
| A | npixels | None | Number of unmasked wavelengths that contributed to the redshift fit | False | True | NPIXELS | zall-pix-iron | 1 |
| A | obsconditions | None | Bit-coded of allowed observing conditions | False | True | OBSCONDITIONS | zall-pix-iron | 1 |
| A | sv1_bgs_target | None | BGS (bright time program) target selection bitmask for SV1 | False | True | SV1_BGS_TARGET | zall-pix-iron | 1 |
| A | cmx_target | None | Target selection bitmask for commissioning | False | True | CMX_TARGET | zall-pix-iron | 1 |
| A | pmra | mas year-1 | Reference catalog proper motion in the RA direction | False | True | PMRA | zall-pix-iron | 1 |
| A | ncoeff | None | Number of Redrock template coefficients | False | True | NCOEFF | zall-pix-iron | 1 |
| A | sv3_bgs_target | None | BGS (bright time program) target selection bitmask for SV3 | False | True | SV3_BGS_TARGET | zall-pix-iron | 1 |
| A | chi2 | None | Best fit chi-squared | False | True | CHI2 | zall-pix-iron | 1 |
| A | sv1_scnd_target | None | Secondary target selection bitmask for SV1 | False | True | SV1_SCND_TARGET | zall-pix-iron | 1 |
| A | sv2_desi_target | None | DESI (dark time program) target selection bitmask for SV2 | False | True | SV2_DESI_TARGET | zall-pix-iron | 1 |
| A | sv_primary | None | Boolean flag (True/False) for the primary coadded spectrum in SV (SV1+2+3) | False | True | SV_PRIMARY | zall-pix-iron | 1 |
| A | mean_delta_y | mm | Mean (over exposures) fiber difference requested - actual CS5 Y location on focal plane | False | True | MEAN_DELTA_Y | zall-pix-iron | 1 |
| A | fa_type | None | Fiberassign internal target type (science, standard, sky, safe, suppsky) | False | True | FA_TYPE | zall-pix-iron | 1 |
| A | std_fiber_dec | arcsec | Standard deviation (over exposures) of DEC of actual fiber position | False | True | STD_FIBER_DEC | zall-pix-iron | 1 |
| A | tsnr2_lrg | None | LRG template (S/N)^2 summed over B,R,Z | False | True | TSNR2_LRG | zall-pix-iron | 1 |
| A | numobs_init | None | Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS | False | True | NUMOBS_INIT | zall-pix-iron | 1 |
| A | subtype | None | Spectral subtype | False | True | SUBTYPE | zall-pix-iron | 1 |
| A | priority_init | None | Target initial priority from target selection bitmasks and OBSCONDITIONS | False | True | PRIORITY_INIT | zall-pix-iron | 1 |
| A | mws_target | None | Milky Way Survey targeting bits | False | True | MWS_TARGET | zall-pix-iron | 1 |
| C | updated | None | Date and time when the record was created/updated | False | False | N/A | N/A | N/A |
| C | wavemax | AA | Maximum value of wavelength coverage in Angstroms | False | True | N/A | N/A | N/A |
| C | redshift | None | Measured redshift, or radial velocity in units of redshift | False | True | Z | zall-pix-iron | 1 |
| C | redshift_warning | None | Redshift warning bitmask measured by Redrock | False | True | ZWARN | zall-pix-iron | 1 |
| C | site | None | [Categorical] Site of observations | False | True | N/A | N/A | N/A |
| C | instrument | None | [Categorical] Instrument used for observation | False | True | N/A | N/A | N/A |
| C | file | None | File used for this record | False | False | N/A | N/A | N/A |
| C | telescope | None | [Categorical] Telescope used for the observation | False | True | N/A | N/A | N/A |
| C | extra_files | None | Additional files read for ingest | False | False | N/A | N/A | N/A |
| C | ra | deg | Target right ascension | True | True | TARGET_RA | camcoadd | 1 |
| C | dateobs_center | None | Central value of the dateobs range | False | True | MIN_MJD, MAX_MJD | zall-pix-iron | 1 |
| C | data_release | None | [Categorical] Data release of a given record (with a common data structure, e.g., SDSS-DR16, BOSS-DR16) | False | True | N/A | N/A | N/A |
| C | wavemin | AA | Minimum value of wavelength coverage in Angstroms | False | True | N/A | N/A | N/A |
| C | datasetgroup | None | [Categorical] Common name for a coherent set of spectra published as a single release (e.g., SDSS_BOSS) | False | True | N/A | N/A | N/A |
| C | spectype | None | [Categorical] Spectral type from Redrock file (STAR, GALAXY, QSO) | False | True | SPECTYPE | zall-pix-iron | 1 |
| C | sparcl_id | None | Universally Unique Identifier for spectrum in SPARCL | True | True | N/A | N/A | N/A |
| C | dateobs | None | Range of observational dates for a given spectrum (single value for a single date) | False | True | MIN_MJD, MAX_MJD | zall-pix-iron | 1 |
| C | specid | None | Dataset-specific spectrum identifier (may not be unique) | True | True | TARGETID | camcoadd | 1 |
| C | dec | deg | Target declination | True | True | TARGET_DEC | camcoadd | 1 |
| C | specprimary | None | Boolean flag (True/False) for the primary coadded spectrum for a given target object | False | True | ZCAT_PRIMARY | zall-pix-iron | 1 |
| C | redshift_err | None | Uncertainty on the measured redshift, or radial velocity in units of redshift | False | True | ZERR | zall-pix-iron | 1 |
| C | targetid | None | Unique DESI target ID | False | True | TARGETID | camcoadd | 1 |
| C | exptime | second | Exposure time in seconds | False | True | COADD_EXPTIME | camcoadd | 1 |
| S | model | 1e-17 erg cm-2 s-1 AA-1 | Pipeline best model fit | False | True | BRZ_MODEL | camcoadd | 8 |
| S | mask | None | Mask value | False | True | BRZ_MASK | camcoadd | 6 |
| S | wavelength | AA | Wavelength in units of Angstroms | True | True | BRZ_WAVELENGTH | camcoadd | 3 |
| S | ivar | 1e+34 cm4 s2 AA2 erg-2 | Inverse variance of flux | False | True | BRZ_IVAR | camcoadd | 5 |
| S | wave_sigma | AA | Line-spread function width (sigma of approximating Gaussian) in units of Angstroms | False | True | BRZ_wavedisp | camcoadd | 10 |
| S | flux | 1e-17 erg cm-2 s-1 AA-1 | Coadded calibrated flux | True | True | BRZ_FLUX | camcoadd | 4 |
| C | CORE field |
|---|---|
| S | SPECTRA field |
| A | AUX field |