============= rvmod_spectra ============= :Summary: This is the file containing the best fit models to spectra from rvspecfit :Naming Convention: ``rvmod_spectra-main-backup-136.fits`` for a main survey, backup program and healpixel 136 :File Type: FITS, 551 KB *This section gives the type of the file and its approximate size.* Contents ======== ====== ============ ======== =================== Number EXTNAME Type Contents ====== ============ ======== =================== HDU0_ IMAGE Empty HDU HDU1_ B_WAVELENGTH IMAGE Wavelength array of b-channel spectra HDU2_ B_MODEL IMAGE Flux array of best-fit model b-channel spectra HDU3_ R_WAVELENGTH IMAGE Wavelength array of r-channel spectra HDU4_ R_MODEL IMAGE Flux array of best-fit model r-channel spectra HDU5_ Z_WAVELENGTH IMAGE Wavelength array of z-channel spectra HDU6_ Z_MODEL IMAGE Flux array of best-fit model z-channel spectra HDU7_ FIBERMAP BINTABLE Information about objects inherited from targeting ====== ============ ======== =================== FITS Header Units ================= HDU0 ---- Empty Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ===================================================================== ==== ============================================== KEY Example Value Type Comment ======== ===================================================================== ==== ============================================== TMPLCON0 desi_b str Spec arm config name TMPLREV0 v211202 str Spec template revision TMPLSVR0 0.1.0.210117+devfee7ee str Spec template soft version TMPLCON1 desi_r str Spec arm config name TMPLREV1 v211202 str Spec template revision TMPLSVR1 0.1.0.210117+devfee7ee str Spec template soft version TMPLCON2 desi_z str Spec arm config name TMPLREV2 v211202 str Spec template revision TMPLSVR2 0.1.0.210117+devfee7ee str Spec template soft version RVS_CONF /global/cfs/cdirs/desi/science/mws/scripts/configs/config_211202.yaml str SPGRP healpix str SPGRPVAL 10016 int HPXPIXEL 10016 int HPXNSIDE 64 int HPXNEST True str CHECKSUM 9HDaDFDY9FDaAFDW str HDU checksum updated 2022-03-13T17:03:18 DATASUM 0 str data unit checksum updated 2022-03-13T17:03:18 ======== ===================================================================== ==== ============================================== Empty HDU. HDU1 ---- EXTNAME = B_WAVELENGTH The wavelength vector for the spectra Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2751 int CHECKSUM fCA2iB32fBA2fB32 str HDU checksum updated 2022-03-13T17:03:18 DATASUM 979185614 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2751] HDU2 ---- EXTNAME = B_MODEL The best fit model in the B arm of the instrument. This HDU contains as many rows as many there are rows in the rvtab table. They also match one-to-one in terms of order. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2751 int NAXIS2 7 int CHECKSUM DTaaDRUTDRZYDRZY str HDU checksum updated 2022-03-13T17:03:18 DATASUM 2579859831 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2751x7] HDU3 ---- EXTNAME = R_WAVELENGTH The wavelength vector for the R arm of the instrument Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2326 int CHECKSUM fLCriLCofLCofLCo str HDU checksum updated 2022-03-13T17:03:18 DATASUM 456732359 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2326] HDU4 ---- EXTNAME = R_MODEL The best fit model in the R arm of the instrument. This HDU contains as many rows as many there are rows in the rvtab table. They also match one-to-one in terms of order. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2326 int NAXIS2 7 int CHECKSUM 3DbXABZW3BbWABZW str HDU checksum updated 2022-03-13T17:03:18 DATASUM 3703740820 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2326x7] HDU5 ---- EXTNAME = Z_WAVELENGTH The wavelength vector of the Z arm of the instrument Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2881 int CHECKSUM QiJBSZGAQfGAQZGA str HDU checksum updated 2022-03-13T17:03:18 DATASUM 3106662670 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2881] HDU6 ---- EXTNAME = Z_MODEL The best fit model in the Z arm of the instrument. This HDU contains as many rows as many there are rows in the rvtab table. They also match one-to-one in terms of order. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 2881 int NAXIS2 7 int CHECKSUM daGBfY99daGAdY97 str HDU checksum updated 2022-03-13T17:03:18 DATASUM 1748435426 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Data: FITS image [float64, 2881x7] HDU7 ---- EXTNAME = FIBERMAP The FIBERMAP targeting table for the objects. The same and in the same order as in RVTAB Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 341 int length of dimension 1 NAXIS2 7 int length of dimension 2 CHECKSUM eMIggKIfeKIfeKIf str HDU checksum updated 2022-03-13T17:03:18 DATASUM 19021304 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns ===================== ======= ============ ======================================================================================================================================= Name Type Units Description ===================== ======= ============ ======================================================================================================================================= TARGETID int64 Unique DESI target ID PETAL_LOC int16 Petal location [0-9] DEVICE_LOC int32 Device location on focal plane [0-523] LOCATION int64 Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC FIBER int32 Fiber ID on the CCDs [0-4999] FIBERSTATUS int32 Fiber status mask. 0=good TARGET_RA float64 deg Barycentric right ascension in ICRS TARGET_DEC float64 deg Barycentric declination in ICRS PMRA float32 mas yr^-1 proper motion in the +RA direction (already including cos(dec)) PMDEC float32 mas yr^-1 Proper motion in the +Dec direction REF_EPOCH float32 yr Reference epoch for Gaia/Tycho astrometry. Typically 2015.5 for Gaia LAMBDA_REF float32 Angstrom Requested wavelength at which targets should be centered on fibers FA_TARGET int64 Targeting bit internally used by fiberassign (linked with FA_TYPE) FA_TYPE binary Fiberassign internal target type (science, standard, sky, safe, suppsky) OBJTYPE char[3] Object type: TGT, SKY, NON, BAD FIBERASSIGN_X float32 mm Fiberassign expected CS5 X location on focal plane FIBERASSIGN_Y float32 mm Fiberassign expected CS5 Y location on focal plane PRIORITY int32 Target current priority SUBPRIORITY float64 Random subpriority [0-1) to break assignment ties OBSCONDITIONS int32 Bitmask of allowed observing conditions RELEASE int16 Imaging surveys release ID BRICKNAME char[8] Brick name from tractor input BRICKID int32 Brick ID from tractor input BRICK_OBJID int32 Imaging Surveys OBJID on that brick MORPHTYPE char[4] Imaging Surveys morphological type from Tractor EBV float32 mag Galactic extinction E(B-V) reddening from SFD98 FLUX_G float32 nanomaggy Flux in the Legacy Survey g-band (AB) FLUX_R float32 nanomaggy Flux in the Legacy Survey r-band (AB) FLUX_Z float32 nanomaggy Flux in the Legacy Survey z-band (AB) FLUX_W1 float32 nanomaggy WISE flux in W1 (AB) FLUX_W2 float32 nanomaggy WISE flux in W2 (AB) FLUX_IVAR_G float32 nanomaggy^-2 Inverse variance of FLUX_G (AB) FLUX_IVAR_R float32 nanomaggy^-2 Inverse variance of FLUX_R (AB) FLUX_IVAR_Z float32 nanomaggy^-2 Inverse variance of FLUX_Z (AB) FLUX_IVAR_W1 float32 nanomaggy^-2 Inverse variance of FLUX_W1 (AB) FLUX_IVAR_W2 float32 nanomaggy^-2 Inverse variance of FLUX_W2 (AB) FIBERFLUX_G float32 nanomaggy Predicted g-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing FIBERFLUX_R float32 nanomaggy Predicted r-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing FIBERFLUX_Z float32 nanomaggy Predicted z-band flux within a fiber of diameter 1.5 arcsec from this object in 1 arcsec Gaussian seeing FIBERTOTFLUX_G float32 nanomaggy Predicted g-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing FIBERTOTFLUX_R float32 nanomaggy Predicted r-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing FIBERTOTFLUX_Z float32 nanomaggy Predicted z-band flux within a fiber of diameter 1.5 arcsec from all sources at this location in 1 arcsec Gaussian seeing MASKBITS int16 Bitwise mask from the imaging indicating potential issue or blending SERSIC float32 Power-law index for the Sersic profile model (MORPHTYPE='SER') SHAPE_R float32 arcsec Half-light radius of galaxy model (>0) SHAPE_E1 float32 Ellipticity component 1 of galaxy model for galaxy type MORPHTYPE SHAPE_E2 float32 Ellipticity component 2 of galaxy model for galaxy type MORPHTYPE REF_ID int64 Tyc1*1,000,000+Tyc2*10+Tyc3 for Tycho-2; ``sourceid`` for Gaia DR2 REF_CAT char[2] Reference catalog source for star: 'T2' for Tycho-2, 'G2' for Gaia DR2, 'L2' for the SGA, empty otherwise GAIA_PHOT_G_MEAN_MAG float32 mag Gaia G band magnitude GAIA_PHOT_BP_MEAN_MAG float32 mag Gaia BP band magnitude GAIA_PHOT_RP_MEAN_MAG float32 mag Gaia RP band magnitude PARALLAX float32 mas Reference catalog parallax PHOTSYS char[1] 'N' for the MzLS/BASS photometric system, 'S' for DECaLS PRIORITY_INIT int64 Target initial priority from target selection bitmasks and OBSCONDITIONS NUMOBS_INIT int64 Initial number of observations for target calculated across target selection bitmasks and OBSCONDITIONS DESI_TARGET int64 DESI (dark time program) target selection bitmask BGS_TARGET int64 BGS (Bright Galaxy Survey) target selection bitmask MWS_TARGET int64 Milky Way Survey targeting bits SCND_TARGET int64 Target selection bitmask for secondary programs PLATE_RA float64 deg Barycentric Right Ascension in ICRS to be used by PlateMaker PLATE_DEC float64 deg Barycentric Declination in ICRS to be used by PlateMaker NUM_ITER int64 Number of positioner iterations FIBER_X float64 mm CS5 X location requested by PlateMaker FIBER_Y float64 mm CS5 Y location requested by PlateMaker DELTA_X float64 mm CS5 X requested minus actual position DELTA_Y float64 mm CS5 Y requested minus actual position FIBER_RA float64 deg RA of actual fiber position FIBER_DEC float64 deg DEC of actual fiber position EXPTIME float64 s Length of time shutter was open PSF_TO_FIBER_SPECFLUX float64 fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing NIGHT int32 Night of observation (YYYYMMDD) starting at local noon before observations start EXPID int32 DESI Exposure ID number MJD float64 d Modified Julian Date when shutter was opened for this exposure TILEID int32 Unique DESI tile ID ===================== ======= ============ =======================================================================================================================================