=========== rvtab_coadd =========== :Summary: RVspecfit measurements of coadded spectra in a given healpix. :Naming Convention: ``rvtab_coadd-sv3-bright-10016.fits``, where this would be the file from sv3 survey in bright program in 10016 healpixel :File Type: FITS, 61 KB *This section gives the type of the file and its approximate size.* Contents ======== ====== ============ ======== ==================================================== Number EXTNAME Type Contents ====== ============ ======== ==================================================== HDU0_ IMAGE Empty HDU HDU1_ RVTAB BINTABLE RVSpecfit results HDU2_ FIBERMAP BINTABLE Information about objects inherited from targeting HDU3_ SCORES BINTABLE Information about spectra quality* HDU4_ EXP_FIBERMAP BINTABLE Fibermap corresponding to different exposures ====== ============ ======== ==================================================== FITS Header Units ================= HDU0 ---- *Summarize the contents of this HDU.* 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 v240212_phoenn str Spec template revision TMPLSVR0 0.4.0.240116+dev00a1aa str Spec template soft version TMPLCON1 desi_r str Spec arm config name TMPLREV1 v240212_phoenn str Spec template revision TMPLSVR1 0.4.0.240116+dev00a1aa str Spec template soft version TMPLCON2 desi_z str Spec arm config name TMPLREV2 v240212_phoenn str Spec template revision TMPLSVR2 0.4.0.240116+dev00a1aa str Spec template soft version RVS_CONF /global/cfs/cdirs/desi/science/mws/scripts/configs/config_v240212_phoenn.yaml str RVS_CMD --nthreads=16 --output_dir /global/cfs/cdirs/desi/science/mws/redux/iron/rv_output/240520/healpix/sv3/bright --config /global/cfs/cdirs/desi/science/mws/scripts/configs/config_v240212_phoenn.yaml --skipexisting --log=/pscratch/sd/k/koposov//redux_logs/JOB_iron_240520_nn_iron_sv3_bright_240520191833/job_iron_240520_nn_iron_sv3_bright_240520191833_00_0.log --log_level=INFO --queue_file --input_file_from=/pscratch/sd/k/koposov//redux_lists/iron_240520_nn_iron_sv3_bright_240520191833/0/file.list --process_status_file=/global/cfs/cdirs/desi/science/mws/run/rvspecfit//JOB_iron_240520_nn_iron_sv3_bright_240520191833/job_iron_240520_nn_iron_sv3_bright_240520191833_00_0.status --objtypes=SCND_ANY,MWS_ANY,STD_* --zbest_select --minsn=2 str CHECKSUM 8eAA8Z548dA98Z59 str HDU checksum updated 2024-05-20T23:37:59 DATASUM 0 str data unit checksum updated 2024-05-20T23:37:59 ======== =============================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================== ==== ============================================== Empty HDU. HDU1 ---- EXTNAME = RVTAB The table of RVSpecfit measurements in a given healpixel. Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 231 int length of dimension 1 NAXIS2 7 int length of dimension 2 CHECKSUM cakocTjmcYjmcYjm str HDU checksum updated 2022-03-13T17:03:18 DATASUM 2504015193 str data unit checksum updated 2022-03-13T17:03:18 ======== ================ ==== ============================================== Required Data Table Columns ~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. rst-class:: columns =========== ======= ====== =================================================================================================== Name Type Units Description =========== ======= ====== =================================================================================================== VRAD float64 km s-1 Radial velocity VRAD_ERR float64 km s-1 Radial velocity error VRAD_SKEW float64 Radial velocity posterior skewness VRAD_KURT float64 Radial velocity posterior kurtosis LOGG float64 Log of surface gravity TEFF float64 K Effective temperature ALPHAFE float64 [alpha/Fe] from template fitting FEH float64 [Fe/H] from template fitting LOGG_ERR float64 Log of surface gravity uncertainty TEFF_ERR float64 K Effective temperature uncertainty ALPHAFE_ERR float64 [alpha/Fe] uncertainty from template fitting FEH_ERR float64 [Fe/H] uncertainty from template fitting VSINI float64 km s-1 Stellar rotation velocity CHISQ_TOT float64 Total chi-square for all arms CHISQ_C_TOT float64 Total chi-square for all arms for polynomial only fit CHISQ_B float64 Chi-square in the B arm CHISQ_C_B float64 Chi-square in the B arm after fitting continuum only CHISQ_R float64 Chi-square in the R arm CHISQ_C_R float64 Chi-square in the R arm after fitting continuum only CHISQ_Z float64 Chi-square in the Z arm CHISQ_C_Z float64 Chi-square in the Z arm after fitting continuum only RVS_WARN int64 RVSpecFit warning flag 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 TARGET_RA float64 deg Target right ascension TARGET_DEC float64 deg Target declination TARGETID int64 Unique DESI target ID SN_B float32 Median S/N in the B arm SN_R float32 Median S/N in the R arm SN_Z float32 Median S/N in the Z arm SUCCESS logical Did we succeed or fail RR_Z float64 Redrock redshift RR_SPECTYPE char[6] Redrock spectype =========== ======= ====== =================================================================================================== HDU2 ---- EXTNAME = FIBERMAP Information about objects inherited from targeting 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 COADD_FIBERSTATUS int32 bitwise-AND of input FIBERSTATUS 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 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 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 SV3_DESI_TARGET int64 DESI (dark time program) target selection bitmask for SV3 SV3_BGS_TARGET int64 BGS (bright time program) target selection bitmask for SV3 SV3_MWS_TARGET int64 MWS (bright time program) target selection bitmask for SV3 SV3_SCND_TARGET int64 Secondary target selection bitmask for SV3 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 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 COADD_NUMEXP int16 Number of exposures in coadd COADD_EXPTIME float32 s Summed exposure time for coadd COADD_NUMNIGHT int16 Number of nights in coadd COADD_NUMTILE int16 Number of tiles in coadd MEAN_DELTA_X float32 mm Mean (over exposures) fiber difference requested - actual CS5 X location on focal plane RMS_DELTA_X float32 mm RMS (over exposures) of the fiber difference between measured and requested CS5 X location on focal plane MEAN_DELTA_Y float32 mm Mean (over exposures) fiber difference requested - actual CS5 Y location on focal plane RMS_DELTA_Y float32 mm RMS (over exposures) of the fiber difference between measured and requested CS5 Y location on focal plane MEAN_FIBER_RA float64 deg Mean (over exposures) RA of actual fiber position STD_FIBER_RA float32 arcsec Standard deviation (over exposures) of RA of actual fiber position MEAN_FIBER_DEC float64 deg Mean (over exposures) DEC of actual fiber position STD_FIBER_DEC float32 arcsec Standard deviation (over exposures) of DEC of actual fiber position MEAN_PSF_TO_FIBER_SPECFLUX float32 Mean of input exposures fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing ========================== ======= ============ =============================================================================================================================== HDU3 ---- EXTNAME = SCORES Information about spectra quality Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 172 int length of dimension 1 NAXIS2 7 int length of dimension 2 CHECKSUM XMRcaJOaRJOaXJOa str HDU checksum updated 2022-03-13T17:03:18 DATASUM 118963768 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 INTEG_COADD_FLUX_B float32 MEDIAN_COADD_FLUX_B float32 MEDIAN_COADD_SNR_B float32 INTEG_COADD_FLUX_R float32 MEDIAN_COADD_FLUX_R float32 MEDIAN_COADD_SNR_R float32 INTEG_COADD_FLUX_Z float32 MEDIAN_COADD_FLUX_Z float32 MEDIAN_COADD_SNR_Z float32 TSNR2_GPBDARK_B float32 TSNR2_ELG_B float32 ELG B template (S/N)^2 TSNR2_GPBBRIGHT_B float32 TSNR2_LYA_B float32 LYA B template (S/N)^2 TSNR2_BGS_B float32 BGS B template (S/N)^2 TSNR2_GPBBACKUP_B float32 TSNR2_QSO_B float32 QSO B template (S/N)^2 TSNR2_LRG_B float32 LRG B template (S/N)^2 TSNR2_GPBDARK_R float32 TSNR2_ELG_R float32 ELG R template (S/N)^2 TSNR2_GPBBRIGHT_R float32 TSNR2_LYA_R float32 LYA R template (S/N)^2 TSNR2_BGS_R float32 BGS R template (S/N)^2 TSNR2_GPBBACKUP_R float32 TSNR2_QSO_R float32 QSO R template (S/N)^2 TSNR2_LRG_R float32 LRG R template (S/N)^2 TSNR2_GPBDARK_Z float32 TSNR2_ELG_Z float32 ELG Z template (S/N)^2 TSNR2_GPBBRIGHT_Z float32 TSNR2_LYA_Z float32 LYA Z template (S/N)^2 TSNR2_BGS_Z float32 BGS Z template (S/N)^2 TSNR2_GPBBACKUP_Z float32 TSNR2_QSO_Z float32 QSO Z template (S/N)^2 TSNR2_LRG_Z float32 LRG Z template (S/N)^2 TSNR2_GPBDARK float32 TSNR2_ELG float32 ELG template (S/N)^2 summed over B,R,Z TSNR2_GPBBRIGHT float32 TSNR2_LYA float32 LYA template (S/N)^2 summed over B,R,Z TSNR2_BGS float32 BGS template (S/N)^2 summed over B,R,Z TSNR2_GPBBACKUP float32 TSNR2_QSO float32 QSO template (S/N)^2 summed over B,R,Z TSNR2_LRG float32 LRG template (S/N)^2 summed over B,R,Z =================== ======= ===== ====================================== HDU4 ---- EXTNAME = EXP_FIBERMAP The fibermap records corresponding to individual exposures that went into the stack Required Header Keywords ~~~~~~~~~~~~~~~~~~~~~~~~ .. collapse:: Required Header Keywords Table .. rst-class:: keywords ======== ================ ==== ============================================== KEY Example Value Type Comment ======== ================ ==== ============================================== NAXIS1 162 int length of dimension 1 NAXIS2 24 int length of dimension 2 CHECKSUM 1TAb3T4Z1T9b1T9Z str HDU checksum updated 2022-03-13T17:03:18 DATASUM 672476038 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 PRIORITY int32 Target current priority SUBPRIORITY float64 Random subpriority [0-1) to break assignment ties NIGHT int32 EXPID int32 DESI Exposure ID number MJD float64 Modified Julian Date when shutter was opened for this exposure TILEID int32 Unique DESI tile ID EXPTIME float64 s Length of time shutter was open 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 FIBERASSIGN_X float32 mm Fiberassign expected CS5 X location on focal plane FIBERASSIGN_Y float32 mm Fiberassign expected CS5 Y location on focal plane LAMBDA_REF float32 Angstrom Requested wavelength at which targets should be centered on fibers PLATE_RA float64 deg Right Ascension to be used by PlateMaker PLATE_DEC float64 deg Declination 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 PSF_TO_FIBER_SPECFLUX float64 fraction of light from point-like source captured by 1.5 arcsec diameter fiber given atmospheric seeing ===================== ======= ======== =======================================================================================================