KPF Data Format

Overview

KPF data products are defined for these data levels:

Level 0 (L0): Raw data products produced by KPF at the W. M. Keck Observatory
2D: Assembled CCD images with minimal processing. This data product is produced by the DRP during processing from L0 to L1 but is not fundamental and is frequently not archived.
Level 1 (L1): Extracted, wavelength-calibrated spectra
Level 2 (L2): Derived data products including cross-correlation functions, radial velocities, and activity indicators.

Each of these data levels is a standardized, multi-extension FITS format, and can be read using standard fits tools (e.g., astropy.fits.io) and the KPF-Pipeline.

KPF L0 files follow the naming convention: KP.YYYYMMDD.SSSSS.ss.fits, where YYYYMMDD is a date and SSSSS.ss is the number of decimal seconds after UT midnight corresponding to the start of the exposure. 2D/L1/L2 files have similar file names, but with ‘_2D’, ‘_L1’, or ‘_L2’ before ‘.fits’. For example, KP.YYYYMMDD.SSSSS.ss_2D.fits is a 2D file name.

See the section titled Tutorials: Opening, Examining, and Manipulating KPF Files for a set of tutorials on the various KPF data files.

In addition, the DRP is able to produce WLS Dictionaries that contain detailed diagnostic information about the fits of individual lines, orders, and orderlets for the wavelength solutions. These are described at the bottom of this page.

Data Format of KPF Files

L0 FITS Extensions

Extension Name	Data Type	Data Dimension	Description
GREEN_AMP1	image	4110 x 2094	CCD image from Green amplifier 1
GREEN_AMP2	image	4110 x 2094	CCD image from Green amplifier 2 [a]
RED_AMP1	image	4110 x 2094	CCD image from Red amplifier 1
RED_AMP2	image	4110 x 2094	CCD image from Red amplifier 2
CA_HK	image	255 x 1024	CCD image from Ca H&K Spectrometer
EXPMETER_SCI	table	variable	Table of Exposure Meter measurements for SCI channel
EXPMETER_SKY	table	variable	Table of Exposure Meter measurements for SKY channel
TELEMETRY	table	variable	Table of telemetry measurements
SOLAR_IRRADIANCE	table	variable	Table of pyrheliometer measurements (for SoCal spectra)
GUIDER_AVG	image	512 x 640	Average image from the guide camera
GUIDER_CUBE_ORIGINS	table	variable	Table of time-series guide camera measurements

[a] - the example shown above is for two-amplifier mode. When KPF is operated in fast’ read mode, four amplifiers per CCD will be used and there will be a corresponding number of AMP extensions.

2D File FITS Extensions

Extension Name	Data Type	Data Dimension	Description
RECEIPT	table	variable	Receipt of DRP processing
CONFIG	table	variable	Configuration parameters
GREEN_CCD	image	4080 x 4080	Assembled Green CCD image with bias/dark correction
RED_CCD	image	4080 x 4080	Assembled Red CCD image with bias/dark correction
CA_HK	image	255 x 1024	Same as in L0 file
EXPMETER_SCI	table	variable	Same as in L0 file
EXPMETER_SKY	table	variable	Same as in L0 file
TELEMETRY	table	variable	Same as in L0 file
SOLAR_IRRADIANCE	table	variable	Same as in L0 file
GUIDER_AVG	image	512 x 640	Same as in L0 file
GUIDER_CUBE_ORIGINS	table	variable	Same as in L0 file

L1 FITS Extensions

Extension Name	Data Type	Data Dimension	Description
RECEIPT	table	variable	Receipt of DRP processing
CONFIG	table	variable	Configuration parameters
TELEMETRY	table	variable	Table of telemetry measurements
GREEN_SCI_FLUX1	image	35 x 4080	1D spectra for 35 GREEN CCD orders of SCI1 orderlet
GREEN_SCI_FLUX2	image	35 x 4080	1D spectra for 35 GREEN CCD orders of SCI2 orderlet
GREEN_SCI_FLUX3	image	35 x 4080	1D spectra for 35 GREEN CCD orders of SCI3 orderlet
GREEN_SKY_FLUX	image	35 x 4080	1D spectra for 35 GREEN CCD orders of SKY orderlet
GREEN_CAL_FLUX	image	35 x 4080	1D spectra for 35 GREEN CCD orders of CAL orderlet
GREEN_SCI_VAR1	image	35 x 4080	Variance vs. pixel for GREEN_SCI_FLUX1
GREEN_SCI_VAR2	image	35 x 4080	Variance vs. pixel for GREEN_SCI_FLUX2
GREEN_SCI_VAR3	image	35 x 4080	Variance vs. pixel for GREEN_SCI_FLUX3
GREEN_SKY_VAR	image	35 x 4080	Variance vs. pixel for GREEN_SKY_FLUX
GREEN_CAL_VAR	image	35 x 4080	Variance vs. pixel for GREEN_CAL_FLUX
GREEN_SCI_WAVE1	image	35 x 4080	Wavelength vs. pixel for GREEN_SCI_FLUX1
GREEN_SCI_WAVE2	image	35 x 4080	Wavelength vs. pixel for GREEN_SCI_FLUX2
GREEN_SCI_WAVE3	image	35 x 4080	Wavelength vs. pixel for GREEN_SCI_FLUX3
GREEN_SKY_WAVE	image	35 x 4080	Wavelength vs. pixel for GREEN_SKY_FLUX
GREEN_CAL_WAVE	image	35 x 4080	Wavelength vs. pixel for GREEN_CAL_FLUX
GREEN_TELLURIC	table	n/a	Not used yet (will include telluric spectrum)
GREEN_SKY	table	n/a	Not used yet (will include modeled sky spectrum)
RED_SCI_FLUX1	image	32 x 4080	1D spectra for 32 RED CCD orders of SCI1 orderlet
RED_SCI_FLUX2	image	32 x 4080	1D spectra for 32 RED CCD orders of SCI2 orderlet
RED_SCI_FLUX3	image	32 x 4080	1D spectra for 32 RED CCD orders of SCI3 orderlet
RED_SKY_FLUX	image	32 x 4080	1D spectra for 32 RED CCD orders of SKY orderlet
RED_CAL_FLUX	image	32 x 4080	1D spectra for 32 RED CCD orders of CAL orderlet
RED_SCI_VAR1	image	32 x 4080	Variance vs. pixel for RED_SCI_FLUX1
RED_SCI_VAR2	image	32 x 4080	Variance vs. pixel for RED_SCI_FLUX2
RED_SCI_VAR3	image	32 x 4080	Variance vs. pixel for RED_SCI_FLUX3
RED_SKY_VAR	image	32 x 4080	Variance vs. pixel for RED_SCI_FLUX
RED_CAL_VAR	image	32 x 4080	Variance vs. pixel for RED_SCI_FLUX
RED_SCI_WAVE1	image	32 x 4080	Wavelength vs. pixel for RED_SCI_FLUX1
RED_SCI_WAVE2	image	32 x 4080	Wavelength vs. pixel for RED_SCI_FLUX2
RED_SCI_WAVE3	image	32 x 4080	Wavelength vs. pixel for RED_SCI_FLUX3
RED_SKY_WAVE	image	32 x 4080	Wavelength vs. pixel for RED_SKY_FLUX
RED_CAL_WAVE	image	32 x 4080	Wavelength vs. pixel for RED_CAL_FLUX
RED_TELLURIC	table	n/a	Not used yet (will include telluric spectrum)
RED_SKY	table	n/a	Not used yet (will include modeled sky spectrum)
CA_HK_SCI	image	6 x 1024	1D spectra (6 orders) of SCI in Ca H&K spectrometer
CA_HK_SKY	image	6 x 1024	1D spectra (6 orders) of SKY in Ca H&K spectrometer
CA_HK_SCI_WAVE	image	6 x 1024	Wavelength vs. pixel for CA_HK_SCI
CA_HK_SKY_WAVE	image	6 x 1024	Wavelength vs. pixel for CA_HK_SKY
BARY_CORR	table	67	Table of barycentric corrections by spectral order

L2 FITS Extensions

Extension Name	Data Type	Data Dimension	Description
RECEIPT	table	variable	Receipt of DRP processing
CONFIG	table	variable	Configuration parameters
TELEMETRY	table	variable	Table of telemetry measurements
GREEN_CCF	image	5 x 52 x 804	CCFs (orderlet x order x RV step) for GREEN
RED_CCF	image	5 x 52 x 804	CCFs (orderlet x order x RV step) for RED
GREEN_CCF	image	5 x 52 x 804	Reweighted CCFs (orderlet x order x RV step) for GREEN
RED_CCF	image	5 x 52 x 804	Reweighted CCFs (orderlet x order x RV step) for RED
RV	table	67	Table of RVs by spectral order (described below)
ACTIVITY	table	n/a	Not used yet (will include activity measurements)

Primary Extension Header Keywords

L0 Primary Extension Header

Most of the important keywords are stored in the primary extension of the Level 0 file, which is written immediately after each KPF exposure.

Keyword	Value (example)	Comment
DATE-BEG	2023-10-22T15:30:01.056733	Start of exposure from kpfexpose
DATE-MID	2023-10-22T15:32:31.065	Halfway point of the exposure (unweighted)
DATE-END	2023-10-22T15:35:01.072797	End of exposure
EXPTIME	300.0	Requested exposure time
ELAPSED	300.0	Actual exposure time
PROGNAME	N226	Program name from kpfexpose
OBJECT	42813	Object name
TARGRA	06:12:13.80	Right ascension [hr] from DCS
TARGDEC	-14:38:56.0	Declination [deg] from DCS
TARGEPOC	2000.0	Target epoch from DCS
TARGEQUI	2000.0	Target equinox from DCS
TARGPLAX	14.7	Target parallax [arcsec] from DCS
TARGPMDC	0.0	Target proper motion [arcsec/yr] in declination from DCS
TARGPMRA	0.0	Target proper motion [s/yr] in right ascension from DCS
TARGRADV	81.87	Target radial velocity [km/s]
TARGFRAM	FK5	Target frame
AIRMASS	1.26	Airmass from DCS
PARANTEL	23.58	Parallactic angle of the telescope from DCS
HA	+01:01:37.22	Hour angle
EL	52.46	Elevation [deg]
AZ	204.46	Azimuth [deg]
LST	07:13:51.02	Local sidereal time
RA	06:12:13.80	[h] Right ascension
DEC	-14:38:56.0	[deg] Declination
EQUINOX	2000.0	DCS Equinox
MJD-OBS	60310.21291	Modified Julian days
GAIAID	DR3 2993561629444856960	GAIA Target name
2MASSID	J06121397-1439002	2MASS Target name
GAIAMAG	9.28	GAIA G band magnitude
2MASSMAG	8.06	2MASS J band magnitude
TARGTEFF	5398.0	Target effective temperature (K)
OCTAGON	EtalonFiber	Selected octagon calibration source (not necessarily powered on)
TRIGTARG	Green,Red,Ca_HK,ExpMeter,Guide	Cameras that were sent triggers
SRCSHTTR	SciSelect,SkySelect,SoCalSci	Source shutters commanded
TIMSHTTR	Scrambler,SimulCal	Timed shutters commanded
OTIMSHTR	Scrambler,SimulCal	Timed shutters open exp. midpoint
SCISEL	open	Science Select shutter at exp. midpoint
SKYSEL	open	Sky Select Shutter at exp. midpoint
FFSHTR	closed	Flat field fiber shutter at exp. midpoint
SCRAMSHT	open	Scrambler shutter at exp. midpoint
SIMCALSH	open	Simult Cal shutter at exp. midpoint
CAHKSHT	closed	CaHK shutter at exp. midpoint
SOLSCISH	open	SoCal Sci shutter at exp. midpoint
SOLCALSH	closed	SoCal Cal shutter at exp. midpoint
CALSSSHT	closed	Cal SciSky shutter at exp. midpoint
AOHATCH	False	AO hatch at exp. midpoint
FIUHTCH	False	FIU hatch at exp. midpoint
IMTYPE	Object	Image Type
TARGNAME	42813	KPF Target Name
DCSNAME	42813	DCS Target Name
FULLTARG	42813	Full Target name from kpfconfig
CAL-OBJ	None	Calibration fiber source
SKY-OBJ	Sky	Sky fiber source
SCI-OBJ	Target	Science fiber source
AGITSTA	Running	Agitator status
FIUMODE	Observing	FIU operating mode
FFFB	Yes	Flatfield fiber on
TOTCNTS	1.1299e+08 1.959e+08 1.8185e+08 1.1561e+08	Total Exp. Meter counts (DN) - four channels (445.0-551.25, 551.25-657.5, 657.5-763.75, 763.75-870.0 nm)
TOTCORR	2.3994e+08 4.1319e+08 3.8088e+08 2.403e+08	Total Exp. Meter counts (DN), corrected for dead time - four channels (445.0-551.25, 551.25-657.5, 657.5-763.75, 763.75-870.0 nm)
ETAV1C1T	23.990154	Etalon Vescent 1 Ch 1 temp (Housing)
ETAV1C2T	23.79949	Etalon Vescent 1 Ch 2 temp (Inner Side Shield)
ETAV1C3T	23.599987	Etalon Vescent 1 Ch 3 temp (Inner Bottom Lid)
ETAV1C4T	23.900118	Etalon Vescent 1 Ch 4 temp (Outer Etalon Chamber)
ETAV2C3T	24.000668	Etalon Vescent 2 Ch 3 temp (Inner Top Lid Temp)
ETAV1C1S	24.000000	Etalon Vescent 1 Ch 1 temp set point (Housing)
ETAV1C2S	23.800000	Etalon Vescent 1 Ch 2 temp set point (Inner Side Shield)
ETAV1C3S	23.600000	Etalon Vescent 1 Ch 3 temp set point (Inner Bottom Lid)
ETAV1C4S	23.900000	Etalon Vescent 1 Ch 4 temp set point (Outer Etalon Chamber)
ETAV2C3S	24.000000	Etalon Vescent 2 Ch 3 temp set point (Inner Top Lid Temp)
PTHDAY	1.422E-05	Last ThAr Daily power meter measurement (Watts)
PTHAU	1.422E-05	Last ThAr Gold power meter measurement (Watts)
PUDAY	1.422E-05	Last UNe Daily power meter measurement (Watts)
PUAU	1.422E-05	Last UNe Gold power meter measurement (Watts)
PLFC	1.422E-05	Last LFC power meter measurement (Watts)
PETAL	1.422E-05	Last Etalon power meter measurement (Watts)
PBRB	1.422E-05	Last Broadband power meter measurement (Watts)
PSOL	1.422E-05	Last SoCal-CalFib power meter measurement (Watts)
PTHDAYT	‘20250108T08:37:44 HST’	Time of last ThAr Daily power measurement
PTHAUT	‘20250108T08:37:44 HST’	Time of last ThAr Gold power measurement
PUDAYT	‘20250108T08:37:44 HST’	Time of last UNe Daily power measurement
PUAUT	‘20250108T08:37:44 HST’	Time of last UNe Gold power measurement
PLFCT	‘20250108T08:37:44 HST’	Time of last LFC power measurement
PETALT	‘20250108T08:37:44 HST’	Time of last Etalon power measurement
PBRBT	‘20250108T08:37:44 HST’	Time of last Broadband power measurement
PSOLT	‘20250108T08:37:44 HST’	Time of last SoCal-CalFib power measurement
TIMEERR	‘ok 2 3 {NTP time correct to within 3 ms}’	NTP time server response (needs interpretation)
VIGNETTE	‘false ‘	Dome vignetting (true/false)
STVIGNE	‘false ‘	Top shutter vignetting (true/false)
SBVIGNE	‘false ‘	Bottom shutter vignetting (true/false)
SBELEV	23.99	Bottom shutter elevation (deg)
STELEV	23.99	Top shutter elevation (deg)
LFCMODE	‘StandbyHigh’	LFC Operation Mode
AMPON	27635202.107	LFC: Amount of time amplifier on (sec)
LFCFO	250000000.0	LFC filtered Offset Freq RR Comb counted (Hz)
LFCFREF	250000000.0	LFC filtered Offset Freq RR Comb setpoint (Hz)
LFCFR	19999999999.9963	LFC filtered Offset Freq RR Filter counted (Hz)
LFCFRREF	20000000000.0	LFC filtered Offset Freq RR Filter setpoint(Hz)
LFCCEOFR	5220000000.0	LFC CEO Filtered Setpoint Freq (Hz)
LFCCWFRF	288005220000000.0	LFC CW Freq Reference (Hz)
LFCCWFRQ	288005220406302.0	LFC CW Freq (Hz)
LFCCWFER	406302.0	LFC CW Freq Error: Ref-Actual (Hz)
LFCCWMDN	1152021	LFC CW mode number
LFCBIACT	0.033	LFC Blue cut amp diode current (A)
LFCBISET	0.0	LFC Blue cut amp diode setting (A)

2D Primary Extension Header

The 2D file inherits all L0 keywords. Below are additional keywords.

Keyword	Value (example)	Comment
DRPTAG	v2.5.2	Git version number of KPF-Pipeline used to make 2D (in the time series database, DRPTAG is listed as DRPTAG2D)
DRPHSH	‘ccf5f6ebe0c9ae7d43706cc57fed2ecdeb540a17’	Git commit hash version of KPF-Pipeline used to make 2D (in the time series database, DRPHSH is listed as DRPHSH2D)
DRPTAGMF	v2.5.2	DRPTAG of master flat file used to make 2D
DRPTAGMB	v2.5.2	DRPTAG of master bias file used to make 2D
DRPTAGMD	v2.5.2	DRPTAG of master dark file used to make 2D
NOTJUNK	1	QC: 1 = not in the list of junk files check; this QC is rerun on L1 and L2
DATAPRL0	1	QC: 1 = L0 data products present with non-zero array sizes
KWRDPRL0	1	QC: 1 = L0 expected keywords present
TIMCHKL0	1	QC: 1 = Consistent times in L0 file
EMSAT	1	QC: 1 = Exp Meter not saturated; 0 = 2+ reduced EM pixels within 90% of saturation in EM-SCI or EM-SKY
EMNEG	1	QC: 1 = Exp Meter not negative flux; 0 = 20+ consecutive pixels in summed spectra with negative flux
DATAPR2D	1	QC: 1 = 2D data products present with non-zero array sizes
CAHKPR2D	1	QC: 1 = 2D CaHK data present with non-zero array sizes
TELEPRL0	1	QC: 1 = TELEMETRY extension present in L0
GOODREAD	1	QC: 1 = Exposure time not consistent with CCD readout error (~6 sec)
POS2DSNR	1	QC: 1 = 2D Red and Green SNR (data/var^0.5) not significantly negative
LOWBIAS	1	QC: 1 = 2D bias flux not low
LOWDARK	1	QC: 1 = 2D dark flux not low
LFC2DFOK	1	QC: 1 = LFC flux meets threshold of 4000 counts
OLDBIAS	1	QC: 1 = Master bias within 5 days of this obs
OLDDARK	1	QC: 1 = Master dark within 5 days of this obs
OLDFLAT	1	QC: 1 = Master flat within 5 days of this obs
NTPGOOD	1	QC: 1 = NTP time within 100 ms
GUIDGOOD	1	QC: 1 = Guider RMS and bias within 50 mas RMS
GUIDSAT	1	QC: 1 = Guider avg frame not saturated and <10% of frames have a sat pixel
TARGPLAU	1	QC: 1 = TARG kwds present with plausible values
AGITOK	1	QC: 1 = Agitator running with speed above minimum
NOTVIGN	1	QC: 1 = Telescope not vignetted by dome
GOODEL	1	QC: 1 = Telescope elevation above 30 deg (for ADC)
ETASTEMP	1	QC: 1 = Etalon inner chamber temps near set points
FLXSTATS	1	QC: 1 = Flux stats in/out of order trace as expected
HKSHTOPN	1	QC: 1 = HK shutter open and HK image requested; not bias/dark exposure
GRCCD10T	1	QC: 1 = Green CCD > 10 mK from temp set point
GRCCD1T	1	QC: 1 = Green CCD > 1000 mK (1 C) from temp set point
RDCCD10T	1	QC: 1 = Red CCD > 10 mK from temp set point
RDCCD1T	1	QC: 1 = Red CCD > 1000 mK (1 C) from temp set point
ISGOOD	1	QC: 1 = all other QC tests passed
CLEARSKY	1	QC: 1 = Clear sky conditions for SoCal
RNGREEN1	4.85283	Read noise for GREEN_AMP1 [e-] (first amplifier region on Green CCD)
RNGREEN2	4.14966	Read noise for GREEN_AMP2 [e-] (second amplifier region on Green CCD)
RNGREEN3	4.85283	Read noise for GREEN_AMP3 [e-] (third amplifier region on Green CCD)
RNGREEN4	4.14966	Read noise for GREEN_AMP4 [e-] (fourth amplifier region on Green CCD)
RNRED1	4.0376	Read noise for RED_AMP1 [e-] (first amplifier region on Red CCD)
RNRED2	4.12717	Read noise for RED_AMP2 [e-] (second amplifier region on Red CCD)
RNRED3	4.0376	Read noise for RED_AMP3 [e-] (third amplifier region on Red CCD)
RNRED4	4.12717	Read noise for RED_AMP4 [e-] (fourth amplifier region on Red CCD)
RNNGGR1	1.0	Non-Gaussian read noise GREEN1, 0.8*stddev/mad of overscan
RNNGGR2	1.0	Non-Gaussian read noise GREEN2, 0.8*stddev/mad of overscan
RNNGGR3	1.0	Non-Gaussian read noise GREEN3, 0.8*stddev/mad of overscan
RNNGGR4	1.0	Non-Gaussian read noise GREEN4, 0.8*stddev/mad of overscan
RNNGRD1	1.0	Non-Gaussian read noise RED1, 0.8*stddev/mad of overscan
RNNGRD2	1.0	Non-Gaussian read noise RED2, 0.8*stddev/mad of overscan
RNNGRD3	1.0	Non-Gaussian read noise RED3, 0.8*stddev/mad of overscan
RNNGRD4	1.0	Non-Gaussian read noise RED4, 0.8*stddev/mad of overscan
GREENTRT	46.804	Green CCD read time [sec]
REDTRT	46.839	Red CCD read time [sec]
READSPED	‘regular ‘	Categorization of CCD read speed (‘regular’ or ‘fast’)
FLXREG1G	1.00	Dark current [e-/hr] - Green CCD region 1 - coords = [1690:1990,1690:1990]
FLXREG2G	1.00	Dark current [e-/hr] - Green CCD region 2 - coords = [1690:1990,2090:2390]
FLXREG3G	1.00	Dark current [e-/hr] - Green CCD region 3 - coords = [2090:2390,1690:1990]
FLXREG4G	1.00	Dark current [e-/hr] - Green CCD region 4 - coords = [2090:2390,2090:2390]
FLXREG5G	1.00	Dark current [e-/hr] - Green CCD region 5 - coords = [80:380,3080:3380]
FLXREG6G	1.00	Dark current [e-/hr] - Green CCD region 6 - coords = [1690:1990,1690:1990]
FLXAMP1G	1.00	Dark current [e-/hr] - Green CCD amplifier region 1 - coords = [3700:4000,700:1000]
FLXAMP2G	1.00	Dark current [e-/hr] - Green CCD amplifier region 2 - coords = [3700:4000,3080:3380]
FLXCOLLG	1.00	Dark current [e-/hr] - Green CCD collimator-side region = [3700:4000,700:1000]
FLXECHG	1.00	Dark current [e-/hr] - Green CCD echelle-side region = [3700:4000,700:1000]
FLXREG1R	1.00	Dark current [e-/hr] - Red CCD region 1 - coords = [1690:1990,1690:1990]
FLXREG2R	1.00	Dark current [e-/hr] - Red CCD region 2 - coords = [1690:1990,2090:2390]
FLXREG3R	1.00	Dark current [e-/hr] - Red CCD region 3 - coords = [2090:2390,1690:1990]
FLXREG4R	1.00	Dark current [e-/hr] - Red CCD region 4 - coords = [2090:2390,2090:2390]
FLXREG5R	1.00	Dark current [e-/hr] - Red CCD region 5 - coords = [80:380,3080:3380]
FLXREG6R	1.00	Dark current [e-/hr] - Red CCD region 6 - coords = [1690:1990,1690:1990]
FLXAMP1R	1.00	Dark current [e-/hr] - Red CCD amplifier region 1 = [3700:4000,700:1000]
FLXAMP2R	1.00	Dark current [e-/hr] - Red CCD amplifier region 2 = [3700:4000,3080:3380]
FLXCOLLR	1.00	Dark current [e-/hr] - Red CCD collimator-side region = [3700:4000,700:1000]
FLXECHR	1.00	Dark current [e-/hr] - Red CCD echelle-side region = [3700:4000,700:1000]
GDRXRMS	10.123	Guider: x-coordinate RMS guiding error in milliarcsec (mas)
GDRYRMS	10.123	Guider: y-coordinate RMS guiding error in milliarcsec (mas)
GDRRRMS	10.123	Guider: r-coordinate RMS guiding error in milliarcsec (mas)
GDRXBIAS	0.0010	Guider: x-coordinate bias guiding error in milliarcsec (mas)
GDRYBIAS	0.0010	Guider: y-coordinate bias guiding error in milliarcsec (mas)
GDRSEEJZ	0.450	Guider: Seeing (arcsec) in J+Z-band from Moffat func fit
GDRSEEV	0.450	Guider: Scaled seeing (arcsec) in V-band from J+Z-band
GDRFWMD	208.1	Guider frames: median(FWHM)[mas]
GDRFWSTD	20.5	Guider frames: std(FWHM)[mas]
GDRFXMD	218074.0	Guider frames: median(flux) [ADU]
GDRFXSTD	98306.5	Guider frames: std(flux)[ADU]
GDRPKMD	2729.5	Guider frames: median(peak_flux) [ADU]
GDRPKSTD	1221.8	Guider frames: std(peak_flux)[ADU]
GDRFRSAT	0.0	Guider: frac of frames w/in 90% saturated
GDRNSAT	10	Guider: number of 90% saturated pix in co-added image
MOONSEP	55.0	Separation between Moon and target star (deg)
SUNALT	-45.0	Altitude of Sun (deg); negative = below horizon
MEDGRN1	3.9642348e+07	Median for GREEN_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16GRN1	3.9340188e+07	16th-percentile for GREEN_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84GRN1	3.9340188e+07	84th-percentile for GREEN_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDGRN2	3.9642348e+07	Median for GREEN_AMP2 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16GRN2	3.9340188e+07	16th-percentile for GREEN_AMP2 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84GRN2	3.9340188e+07	84th-percentile for GREEN_AMP2 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDGRN3	3.9642348e+07	Median for GREEN_AMP3 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16GRN3	3.9340188e+07	16th-percentile for GREEN_AMP3 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84GRN3	3.9340188e+07	84th-percentile for GREEN_AMP3 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDGRN4	3.9642348e+07	Median for GREEN_AMP4 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16GRN4	3.9340188e+07	16th-percentile for GREEN_AMP4 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84GRN4	3.9340188e+07	84th-percentile for GREEN_AMP4 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDRED1	3.9642348e+07	Median for RED_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16RED1	3.9340188e+07	16th-percentile for RED_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84RED1	3.9340188e+07	84th-percentile for RED_AMP1 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDRED2	3.9642348e+07	Median for RED_AMP2 in L0 [e-] (includes overscan region, excludes NaNs explicitly)
P16RED2	3.9340188e+07	16th-percentile for RED_AMP2 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84RED2	3.9340188e+07	84th-percentile for RED_AMP2 in L0 [DN] (includes overscan region, excludes NaNs explicitly)
MEDCAHK	3.9642348e+07	Median for CA_HK_AMP in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P16CAHK	3.9340188e+07	16th-percentile for CA_HK_AMP in L0 [DN] (includes overscan region, excludes NaNs explicitly)
P84CAHK	3.9340188e+07	84th-percentile for CA_HK_AMP in L0 [DN] (includes overscan region, excludes NaNs explicitly)
GR2DF99P	30552.46	99th percentile flux in 2D Green image (e-)
GR2DF90P	14860.21	90th percentile flux in 2D Green image (e-)
GR2DF50P	234.62	50th percentile flux in 2D Green image (e-)
GR2DF10P	42.05	10th percentile flux in 2D Green image (e-)
RD2DF99P	62520.97	99th percentile flux in 2D Red image (e-)
RD2DF90P	40589.16	90th percentile flux in 2D Red image (e-)
RD2DF50P	613.23	50th percentile flux in 2D Red image (e-)
RD2DF10P	128.83	10th percentile flux in 2D Red image (e-)
HK2DF99P	62520.97	99th percentile flux in HK image (e-)
HK2DF90P	40589.16	90th percentile flux in HK image (e-)
HK2DF50P	613.23	50th percentile flux in HK image (e-)
HK2DF10P	128.83	10th percentile flux in HK image (e-)
FINTRG9F	44792.59462213099	Flux inside 2D padded order trace regions (Green, 99.5th %ile, e-)
FOUTRG9F	42712.30999372024	Flux outside 2D padded order trace regions (Green, 99.5th %ile, e-)
FRATRG9F	39266.75287925928	Flux ratio (in/out) in 2D padded order trace regions (Green, 99.5th %ile)
FINTRG99	32499.71441714234	Flux inside 2D padded order trace regions (Green, 99th %ile, e-)
FOUTRG99	24305.818315405733	Flux outside 2D padded order trace regions (Green, 99th %ile, e-)
FRATRG99	2111.0515642358464	Flux ratio (in/out) in 2D padded order trace regions (Green, 99th %ile)
FINTRG98	112.77464436023686	Flux inside 2D padded order trace regions (Green, 98th %ile, e-)
FOUTRG98	269.6901086358044	Flux outside 2D padded order trace regions (Green, 98th %ile, e-)
FRATRG98	255.33818562687816	Flux ratio (in/out) in 2D padded order trace regions (Green, 98th %ile)
FINTRG95	242.61130151516446	Flux inside 2D padded order trace regions (Green, 95th %ile, e-)
FOUTRG95	225.50535785752024	Flux outside 2D padded order trace regions (Green, 95th %ile, e-)
FRATRG95	210.497150778097	Flux ratio (in/out) in 2D padded order trace regions (Green, 95th %ile)
FINTRG90	139.25304642797374	Flux inside 2D padded order trace regions (Green, 90th %ile, e-)
FOUTRG90	52.17332932663871	Flux outside 2D padded order trace regions (Green, 90th %ile, e-)
FRATRG90	166.0891266969673	Flux ratio (in/out) in 2D padded order trace regions (Green, 90th %ile)
FINTRG50	167.27740854293958	Flux inside 2D padded order trace regions (Green, median, e-)
FOUTRG50	161.85046877053625	Flux outside 2D padded order trace regions (Green, median, e-)
FRATRG50	144.119477807159	Flux ratio (in/out) in 2D padded order trace regions (Green, median)
FINTRG10	115.4686333071965	Flux inside 2D padded order trace regions (Green, 10th %ile, e-)
FOUTRG10	15.15982320234374	Flux outside 2D padded order trace regions (Green, 10th %ile, e-)
FRATRG10	2.161538199990934	Flux ratio (in/out) in 2D padded order trace regions (Green, 10th %ile)
FINTRR9F	95470.82761046116	Flux inside 2D padded order trace regions (Red, 99.5th %ile, e-)
FOUTRR9F	92136.58954051501	Flux outside 2D padded order trace regions (Red, 99.5th %ile, e-)
FRATRR9F	88512.13858512425	Flux ratio (in/out) in 2D padded order trace regions (Red, 99.5th %ile)
FINTRR99	79526.37170911182	Flux inside 2D padded order trace regions (Red, 99th %ile, e-)
FOUTRR99	67332.19863683594	Flux outside 2D padded order trace regions (Red, 99th %ile, e-)
FRATRR99	12250.720295831863	Flux ratio (in/out) in 2D padded order trace regions (Red, 99th %ile)
FINTRR98	448.7579839841067	Flux inside 2D padded order trace regions (Red, 98th %ile, e-)
FOUTRR98	659.4143686055465	Flux outside 2D padded order trace regions (Red, 98th %ile, e-)
FRATRR98	573.7167008946659	Flux ratio (in/out) in 2D padded order trace regions (Red, 98th %ile)
FINTRR95	536.7420868538279	Flux inside 2D padded order trace regions (Red, 95th %ile, e-)
FOUTRR95	492.4004219159836	Flux outside 2D padded order trace regions (Red, 95th %ile, e-)
FRATRR95	449.5952349484368	Flux ratio (in/out) in 2D padded order trace regions (Red, 95th %ile)
FINTRR90	275.84219353528556	Flux inside 2D padded order trace regions (Red, 90th %ile, e-)
FOUTRR90	157.7923244678131	Flux outside 2D padded order trace regions (Red, 90th %ile, e-)
FRATRR90	144.78123643613023	Flux ratio (in/out) in 2D padded order trace regions (Red, 90th %ile)
FINTRR50	160.59596905029133	Flux inside 2D padded order trace regions (Red, median, e-)
FOUTRR50	164.9062757570359	Flux outside 2D padded order trace regions (Red, median, e-()
FRATRR50	161.50752145919384	Flux ratio (in/out) in 2D padded order trace regions (Red, median)
FINTRR10	149.7618155240416	Flux inside 2D padded order trace regions (Red, 10th %ile, e-)
FOUTRR10	44.41206089185467	Flux outside 2D padded order trace regions (Red, 10th %ile, e-)
FRATRR10	2.843978536330172	Flux ratio (in/out) in 2D padded order trace regions (Red, 10th %ile)
BIASFILE	kpf_20250510_master_bias_autocal-bias.fits	Master bias file used to process this 2D file
DARKFILE	kpf_20250510_master_dark_autocal-dark.fits	Master dark file used to process this 2D file
FLATFILE	kpf_20250510_master_flat.fits	Master flat file used to process this 2D file
BIASDIR	‘/data/masters/20250510/’	Directory for BIASFILE
DARKDIR	‘/data/masters/20250510/’	Directory for DARKFILE
FLATDIR	‘/data/masters/20250510/’	Directory for FLATFILE
BIASDONE	1	Bias subtracted
DARKDONE	1	Dark subtracted
FLATDONE	1	Flat divided
AGEBIAS	0	Age of master bias file compared to this file (whole days)
AGEDARK	0	Age of master dark file compared to this file (whole days)
AGEFLAT	0	Age of master flat file compared to this file (whole days)
XDSPDYG1	-15.93355	Green cross-dispersion offset [pix] compared to master reference
XDSPDYR1	-15.86130	Red cross-dispersion offset [pix] compared to master reference
XDSPDYG2	0.02673	Green cross-dispersion offset [pix] compared to reference in era
XDSPDYR2	0.05026	Red cross-dispersion offset [pix] compared to reference in era
XDSPSYG1	0.00133	Uncertainty [pix] in XDSPDYG1
XDSPSYR1	0.00217	Uncertainty [pix] in XDSPDYR1
XDSPSYG2	0.00144	Uncertainty [pix] in XDSPDYG2
XDSPSYR2	0.00058	Uncertainty [pix] in XDSPDYR2
DNIMEAS	500.0	Mean DNI from pyrheliometer during the exposure [W/m^2]
DNICLR	500.0	Theoretical DNI in perfect conditions [W/m^2]
DNIRMS	1.0	RMS of DNIMEAS during the exposure [W/m^2]
CLEARIDX	3.0	SoCal clearness index (<4==CLEARSKY)

Keywords related to read noise are only computed for the amplifiers used. In regular read mode, two amplifiers are used (AMP1 and AMP2), while in fast read mode, four amplifiers are used (AMP1, AMP2, AMP3, and AMP4).

Keywords related to dark current (starting with FLX) are only added for 2D files of Dark observations (no illumination and exposure time > 0). The regions for those keywords refer to the CCD coordinates where the dark current measurements were made (using modules/quicklook/arc/analyze_2d.py). The image below (click to enlarge) shows the regions and dark current estimates for a 2D spectrum taken when the dark current was high.

Keywords related to the Guider are only added for 2D files that have Guider data products. Similar for Exposure Meter data products.

Keywords related to L0 amplifier-image statistics (e.g., MEDGRN1) are only added to 2D files. A robust estimator of data dispersion width is sigma = 0.5 * (P84 - P16), equivalent to one standard deviation for normally distributed data.

Image of KPF Green CCD showing regions where dark current is measured

L1 Primary Extension Header

The L1 file inherits all L0 and 2D keywords. Below are additional important keywords.

Keyword	Value (example)	Comment
DRPTAG	v2.5.2	Git version number of KPF-Pipeline used to make L1 (in the time series database, DRPTAG is listed as DRPTAGL1 for L1 files)
DRPHSH	‘ccf5f6ebe0c9ae7d43706cc57fed2ecdeb540a17’	Git commit hash version of KPF-Pipeline used to make L1 (in the time series database, DRPHSH is listed as DRPHSHL1 for L1 files)
WLSFILE	/masters/20231230/kpf_20231230_master_WLS_autocal-lfc-all-eve_L1.fits	First wavelength interpolation reference for this L1 file
WLSFILE2	/masters/20231231/kpf_20231231_master_WLS_autocal-lfc-all-morn_L1.fits	Second wavelength interpolation reference for this L1 file
TRACFILE	/masters/20250522/kpf_20250522_order_mask.fits	Order trace file used to extract this L1 file
TRACFGRN	/masters/20250522/kpf_20250522_master_flat_GREEN_CCD.csv	Order trace file used to extract GREEN orders for this L1 file
TRACFGRN	/masters/20250522/kpf_20250522_master_flat_RED_CCD.csv	Order trace file used to extract RED orders for this L1 file
EXTMETHK	‘optimal’	Extraction method used for SKY fibers
EXTMETHS	‘optimal’	Extraction method used for SCI fibers
EXTMETHC	‘box’	Extraction method used for CAL fibers
LAMPFILE	/masters/20250522/kpf_20250522_smooth_lamp.fits	Smooth lamp file used to extract this L1 file
MONOTWLS	1	QC: 1 = L1 wavelength solution is monotonic
DATAPRL1	1	QC: 1 = L1 red and green data present
CAHKPRL1	1	QC: 1 = CaHK data present in L1 with expected shape
WLSL1	1	QC: 1 = L1 WLS file check passed
LFCSAT	1	QC: 1 = L1 LFC spectrum not saturated
OLDWLS	1	QC: 1 = WLSFILE within 2 days of this obs
OLDWLS2	1	QC: 1 = WLSFILE2 within 2 days of this obs
OLDTRAC	1	QC: 1 = TRACFILE within 5 days of this obs
OLDLAMP	1	QC: 1 = LAMPFILE within 5 days of this obs
FLATSNR	1	QC: 1 = SNR of flat greater minimum threshold and less than maximum threshold
LFCLINES	1	QC: 1 = Number and distribution of LFC lines above threshold ampltidue is sufficient for all orders 2-34 (Green), 1-31 (Red)
LFCLINEP	1	QC: 1 = Number and distribution of LFC lines above threshold ampltidue is sufficient for all orders 15-34 (Green), 1-31 (Red) - partial wavelength coverage
ETALINES	1	QC: 1 = Number and distribution of Etalon lines above threshold ampltidue is sufficient for all orders/orderlets available
WILDWSCI	1	QC: 1 = SCI WLS not wild (stdev compared to reference < 5 pixels)
WILDWSKY	1	QC: 1 = SKY WLS not wild (stdev compared to reference < 5 pixels)
WILDWCAL	1	QC: 1 = CAL WLS not wild (stdev compared to reference < 5 pixels)
NANL1OK	1	QC: 1 = Number of NaNs in L1 (all orders, both chips) < 50
NSATGS2	23	Number of saturated lines in Green SCI2
NSATGC	23	Number of saturated lines in Green CAL
NSATGK	23	Number of saturated lines in Green SKY
NSATRS2	23	Number of saturated lines in Red SCI2
NSATRC	23	Number of saturated lines in Red CAL
NSATRK	23	Number of saturated lines in Red SKY
SNRSC452	250.0	SNR of L1 SCI spectrum (SCI1+SCI2+SCI3; 95th %ile) near 452 nm (second bluest order); on Green CCD
SNRSK452	250.0	SNR of L1 SKY spectrum (95th %ile) near 452 nm (second bluest order); on Green CCD
SNRCL452	250.0	SNR of L1 CAL spectrum (95th %ile) near 452 nm (second bluest order); on Green CCD
SNRSC548	250.0	SNR of L1 SCI spectrum (SCI1+SCI2+SCI3; 95th %ile) near 548 nm; on Green CCD
SNRSK548	250.0	SNR of L1 SKY spectrum (95th %ile) near 548 nm; on Green CCD
SNRCL548	250.0	SNR of L1 CAL spectrum (95th %ile) near 548 nm; on Green CCD
SNRSC652	250.0	SNR of L1 SCI spectrum (SCI1+SCI2+SCI3; 95th %ile) near 652 nm; on Red CCD
SNRSK652	250.0	SNR of L1 SKY spectrum (95th %ile) near 652 nm; on Red CCD
SNRCL652	250.0	SNR of L1 CAL spectrum (95th %ile) near 652 nm; on Red CCD
SNRSC747	250.0	SNR of L1 SCI spectrum (SCI1+SCI2+SCI3; 95th %ile) near 747 nm; on Red CCD
SNRSK747	250.0	SNR of L1 SKY spectrum (95th %ile) near 747 nm; on Red CCD
SNRCL747	250.0	SNR of L1 CAL spectrum (95th %ile) near 747 nm; on Red CCD
SNRSC852	250.0	SNR of L1 SCI (SCI1+SCI2+SCI3; 95th %ile) near 852 nm (second reddest order); on Red CCD
SNRSK852	250.0	SNR of L1 SKY spectrum (95th %ile) near 852 nm (second reddest order); on Red CCD
SNRCL852	250.0	SNR of L1 CAL spectrum (95th %ile) near 852 nm (second reddest order); on Red CCD
FR452652	1.2345	Peak flux ratio between orders (452nm/652nm) using SCI2
FR548652	1.2345	Peak flux ratio between orders (548nm/652nm) using SCI2
FR747652	1.2345	Peak flux ratio between orders (747nm/652nm) using SCI2
FR852652	1.2345	Peak flux ratio between orders (852nm/652nm) using SCI2
FR12M452	0.9000	median(SCI1/SCI2) flux ratio near 452 nm; on Green CCD
FR12U452	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 452 nm; on Green CCD
FR32M452	0.9000	median(SCI3/SCI2) flux ratio near 452 nm; on Green CCD
FR32U452	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 452 nm; on Green CCD
FRS2M452	0.9000	median(SKY/SCI2) flux ratio near 452 nm; on Green CCD
FRS2U452	0.0010	uncertainty on the median(SKY/SCI2) flux ratio near 452 nm; on Green CCD
FRC2M452	0.9000	median(CAL/SCI2) flux ratio near 452 nm; on Green CCD
FRC2U452	0.0010	uncertainty on the median(CAL/SCI2) flux ratio near 452 nm; on Green CCD
FR12M548	0.9000	median(SCI1/SCI2) flux ratio near 548 nm; on Green CCD
FR12U548	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 548 nm; on Green CCD
FR32M548	0.9000	median(SCI3/SCI2) flux ratio near 548 nm; on Green CCD
FR32U548	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 548 nm; on Green CCD
FRS2M548	0.9000	median(SKY/SCI2) flux ratio near 548 nm; on Green CCD
FRS2U548	0.0010	uncertainty on the median(SKY/SCI2) flux ratio near 548 nm; on Green CCD
FRC2M548	0.9000	median(CAL/SCI2) flux ratio near 548 nm; on Green CCD
FRC2U548	0.0010	uncertainty on the median(CAL/SCI2) flux ratio near 548 nm; on Green CCD
FR12M652	0.9000	median(SCI1/SCI2) flux ratio near 652 nm; on Red CCD
FR12U652	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 652 nm; on Red CCD
FR32M652	0.9000	median(SCI3/SCI2) flux ratio near 652 nm; on Red CCD
FR32U652	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 652 nm; on Red CCD
FRS2M652	0.9000	median(SKY/SCI2) flux ratio near 652 nm; on Red CCD
FRS2U652	0.0010	uncertainty on the median(SKY/SCI2) flux ratio near 652 nm; on Red CCD
FRC2M652	0.9000	median(CAL/SCI2) flux ratio near 652 nm; on Red CCD
FRC2U652	0.0010	uncertainty on the median(CAL/SCI2) flux ratio near 652 nm; on Red CCD
FR12M747	0.9000	median(SCI1/SCI2) flux ratio near 747 nm; on Red CCD
FR12U747	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 747 nm; on Red CCD
FR32M747	0.9000	median(SCI3/SCI2) flux ratio near 747 nm; on Red CCD
FR32U747	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 747 nm; on Red CCD
FRS2M747	0.9000	median(SKY/SCI2) flux ratio near 747 nm; on Red CCD
FRS2U747	0.0010	uncertainty on the median(SKY/SCI2) flux ratio near 747 nm; on Red CCD
FRC2M747	0.9000	median(CAL/SCI2) flux ratio near 747 nm; on Red CCD
FRC2U747	0.0010	uncertainty on the median(CAL/SCI2) flux ratio near 747 nm; on Red CCD
FR12M852	0.9000	median(SCI1/SCI2) flux ratio near 852 nm; on Red CCD
FR12U852	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 852 nm; on Red CCD
FR32M852	0.9000	median(SCI3/SCI2) flux ratio near 852 nm; on Red CCD
FR32U852	0.0010	uncertainty on the median(SCI1/SCI2) flux ratio near 852 nm; on Red CCD
FRS2M852	0.9000	median(SKY/SCI2) flux ratio near 852 nm; on Red CCD
FRS2U852	0.0010	uncertainty on the median(SKY/SCI2) flux ratio near 852 nm; on Red CCD
FRC2M852	0.9000	median(CAL/SCI2) flux ratio near 852 nm; on Red CCD
FRC2U852	0.0010	uncertainty on the median(CAL/SCI2) flux ratio near 852 nm; on Red CCD
SKYSCIMS	0.0000123	SKY/SCI flux ratio in main spectrometer scaled from EM data.
EMSCCT48	100000000.1234	cumulative EM counts [ADU] in SCI in 445-870 nm
EMSCCT45	100000000.1234	cumulative EM counts [ADU] in SCI in 445-551 nm
EMSCCT56	100000000.1234	cumulative EM counts [ADU] in SCI in 551-658 nm
EMSCCT67	100000000.1234	cumulative EM counts [ADU] in SCI in 658-764 nm
EMSCCT78	100000000.1234	cumulative EM counts [ADU] in SCI in 764-870 nm
EMSKCT48	100000000.1234	cumulative EM counts [ADU] in SKY in 445-870 nm
EMSKCT45	100000000.1234	cumulative EM counts [ADU] in SKY in 445-551 nm
EMSKCT56	100000000.1234	cumulative EM counts [ADU] in SKY in 551-658 nm
EMSKCT67	100000000.1234	cumulative EM counts [ADU] in SKY in 658-764 nm
EMSKCT78	100000000.1234	cumulative EM counts [ADU] in SKY in 764-870 nm
LFCLGS0	0	Min SCI Green order with good LFC lines
LFCLGS1	34	Max SCI Green order with good LFC lines
LFCLGC0	0	Min CAL Green order with good LFC lines
LFCLGC1	34	Max CAL Green order with good LFC lines
LFCLGK0	0	Min SKY Green order with good LFC lines
LFCLGK1	34	Max SKY Green order with good LFC lines
LFCLRS0	0	Min SCI Red order with good LFC lines
LFCLRS1	31	Max SCI Red order with good LFC lines
LFCLRC0	0	Min CAL Red order with good LFC lines
LFCLRC1	31	Max CAL Red order with good LFC lines
LFCLRK0	0	Min SKY Red order with good LFC lines
LFCLRK1	31	Max SKY Red order with good LFC lines
ETALGS0	0	Min SCI Green order with good Etalon lines
ETALGS1	34	Max SCI Green order with good Etalon lines
ETALGC0	0	Min CAL Green order with good Etalon lines
ETALGC1	34	Max CAL Green order with good Etalon lines
ETALGK0	0	Min SKY Green order with good Etalon lines
ETALGK1	34	Max SKY Green order with good Etalon lines
ETALRS0	0	Min SCI Red order with good Etalon lines
ETALRS1	31	Max SCI Red order with good Etalon lines
ETALRC0	0	Min CAL Red order with good Etalon lines
ETALRC1	31	Max CAL Red order with good Etalon lines
ETALRK0	0	Min SKY Red order with good Etalon lines
ETALRK1	31	Max SKY Red order with good Etalon lines
AGEWLS	-0.2205656666666667	Approx age of WLSFILE compared to this file (days)
AGEWLS2	0.14193433333333330	Approx age of WLSFILE2 compared to this file (days)
AGETRAC	-0.2205656666666667	Approx age of TRACFILE compared to this file (days)
AGELAMP	0.14193433333333330	Approx age of LAMPFILE compared to this file (days)
STATWREF	/data/reference_fits/430LFCWLS.fits	filename of ref for median/stdev(WLS-ref)
NANL1GS1	0	Number of NaNs in all orders of L1 Green SCI1
NANL1GS2	0	Number of NaNs in all orders of L1 Green SCI2
NANL1GS3	0	Number of NaNs in all orders of L1 Green SCI3
NANL1GCL	0	Number of NaNs in all orders of L1 Green CAL
NANL1GSK	0	Number of NaNs in all orders of L1 Green SKY
NANL1RS1	0	Number of NaNs in all orders of L1 Red SCI1
NANL1RS2	0	Number of NaNs in all orders of L1 Red SCI2
NANL1RS3	0	Number of NaNs in all orders of L1 Red SCI3
NANL1RCL	0	Number of NaNs in all orders of L1 Red CAL
NANL1RSK	0	Number of NaNs in all orders of L1 Red SKY
MEDWGS00	0.09425503797584399	median(WLS-ref) [pix], Green SCI order 00
MEDWGS01	0.08849442069640202	median(WLS-ref) [pix], Green SCI order 01
MEDWGS02	0.08371697673720710	median(WLS-ref) [pix], Green SCI order 02
MEDWGS03	0.07230817847702598	median(WLS-ref) [pix], Green SCI order 03
MEDWGS04	0.07193348907142433	median(WLS-ref) [pix], Green SCI order 04
MEDWGS05	0.06293971912283422	median(WLS-ref) [pix], Green SCI order 05
MEDWGS06	0.05077530529576392	median(WLS-ref) [pix], Green SCI order 06
MEDWGS07	0.04623384357483791	median(WLS-ref) [pix], Green SCI order 07
MEDWGS08	0.04122733863942630	median(WLS-ref) [pix], Green SCI order 08
MEDWGS09	0.04133073040155002	median(WLS-ref) [pix], Green SCI order 09
MEDWGS10	0.04083729926838733	median(WLS-ref) [pix], Green SCI order 10
MEDWGS11	0.04227960238675732	median(WLS-ref) [pix], Green SCI order 11
MEDWGS12	0.08484872198316575	median(WLS-ref) [pix], Green SCI order 12
MEDWGS13	0.08393586844081193	median(WLS-ref) [pix], Green SCI order 13
MEDWGS14	0.08276874070896721	median(WLS-ref) [pix], Green SCI order 14
MEDWGS15	0.08521370837150342	median(WLS-ref) [pix], Green SCI order 15
MEDWGS16	0.08327132770466454	median(WLS-ref) [pix], Green SCI order 16
MEDWGS17	0.08582583111034116	median(WLS-ref) [pix], Green SCI order 17
MEDWGS18	0.08304781196470204	median(WLS-ref) [pix], Green SCI order 18
MEDWGS19	0.08315949296736645	median(WLS-ref) [pix], Green SCI order 19
MEDWGS20	0.01080036766826940	median(WLS-ref) [pix], Green SCI order 20
MEDWGS21	0.00971051734467042	median(WLS-ref) [pix], Green SCI order 21
MEDWGS22	0.01159860516701642	median(WLS-ref) [pix], Green SCI order 22
MEDWGS23	0.01184356604724085	median(WLS-ref) [pix], Green SCI order 23
MEDWGS24	0.01154525605513285	median(WLS-ref) [pix], Green SCI order 24
MEDWGS25	0.01147245109164928	median(WLS-ref) [pix], Green SCI order 25
MEDWGS26	0.01092980897956587	median(WLS-ref) [pix], Green SCI order 26
MEDWGS27	0.01147811995537022	median(WLS-ref) [pix], Green SCI order 27
MEDWGS28	0.01290072360591021	median(WLS-ref) [pix], Green SCI order 28
MEDWGS29	0.01082521041557961	median(WLS-ref) [pix], Green SCI order 29
MEDWGS30	0.01187839614600258	median(WLS-ref) [pix], Green SCI order 30
MEDWGS31	0.01217203007446422	median(WLS-ref) [pix], Green SCI order 31
MEDWGS32	0.01114056458430155	median(WLS-ref) [pix], Green SCI order 32
MEDWGS33	0.01028957107757591	median(WLS-ref) [pix], Green SCI order 33
MEDWGS34	0.01339571095931450	median(WLS-ref) [pix], Green SCI order 34
MEDWGK00	0	median(WLS-ref) [pix], Green SKY order 00
MEDWGK01	0	median(WLS-ref) [pix], Green SKY order 01
MEDWGK02	0	median(WLS-ref) [pix], Green SKY order 02
MEDWGK03	0	median(WLS-ref) [pix], Green SKY order 03
MEDWGK04	0	median(WLS-ref) [pix], Green SKY order 04
MEDWGK05	0	median(WLS-ref) [pix], Green SKY order 05
MEDWGK06	0	median(WLS-ref) [pix], Green SKY order 06
MEDWGK07	0	median(WLS-ref) [pix], Green SKY order 07
MEDWGK08	0	median(WLS-ref) [pix], Green SKY order 08
MEDWGK09	0	median(WLS-ref) [pix], Green SKY order 09
MEDWGK10	0	median(WLS-ref) [pix], Green SKY order 10
MEDWGK11	0	median(WLS-ref) [pix], Green SKY order 11
MEDWGK12	0	median(WLS-ref) [pix], Green SKY order 12
MEDWGK13	0	median(WLS-ref) [pix], Green SKY order 13
MEDWGK14	0	median(WLS-ref) [pix], Green SKY order 14
MEDWGK15	0	median(WLS-ref) [pix], Green SKY order 15
MEDWGK16	0	median(WLS-ref) [pix], Green SKY order 16
MEDWGK17	0	median(WLS-ref) [pix], Green SKY order 17
MEDWGK18	0	median(WLS-ref) [pix], Green SKY order 18
MEDWGK19	0	median(WLS-ref) [pix], Green SKY order 19
MEDWGK20	0	median(WLS-ref) [pix], Green SKY order 20
MEDWGK21	0	median(WLS-ref) [pix], Green SKY order 21
MEDWGK22	0	median(WLS-ref) [pix], Green SKY order 22
MEDWGK23	0	median(WLS-ref) [pix], Green SKY order 23
MEDWGK24	0	median(WLS-ref) [pix], Green SKY order 24
MEDWGK25	0	median(WLS-ref) [pix], Green SKY order 25
MEDWGK26	0	median(WLS-ref) [pix], Green SKY order 26
MEDWGK27	0	median(WLS-ref) [pix], Green SKY order 27
MEDWGK28	0	median(WLS-ref) [pix], Green SKY order 28
MEDWGK29	0	median(WLS-ref) [pix], Green SKY order 29
MEDWGK30	0	median(WLS-ref) [pix], Green SKY order 30
MEDWGK31	0	median(WLS-ref) [pix], Green SKY order 31
MEDWGK32	0	median(WLS-ref) [pix], Green SKY order 32
MEDWGK33	0	median(WLS-ref) [pix], Green SKY order 33
MEDWGK34	0	median(WLS-ref) [pix], Green SKY order 34
MEDWGC00	0	median(WLS-ref) [pix], Green CAL order 00
MEDWGC01	0	median(WLS-ref) [pix], Green CAL order 01
MEDWGC02	0	median(WLS-ref) [pix], Green CAL order 02
MEDWGC03	0	median(WLS-ref) [pix], Green CAL order 03
MEDWGC04	0	median(WLS-ref) [pix], Green CAL order 04
MEDWGC05	0	median(WLS-ref) [pix], Green CAL order 05
MEDWGC06	0	median(WLS-ref) [pix], Green CAL order 06
MEDWGC07	0	median(WLS-ref) [pix], Green CAL order 07
MEDWGC08	0	median(WLS-ref) [pix], Green CAL order 08
MEDWGC09	0	median(WLS-ref) [pix], Green CAL order 09
MEDWGC10	0	median(WLS-ref) [pix], Green CAL order 10
MEDWGC11	0	median(WLS-ref) [pix], Green CAL order 11
MEDWGC12	0.05655946244029121	median(WLS-ref) [pix], Green CAL order 12
MEDWGC13	0.05512974209761621	median(WLS-ref) [pix], Green CAL order 13
MEDWGC14	0.05620368994990578	median(WLS-ref) [pix], Green CAL order 14
MEDWGC15	0.06086452902834840	median(WLS-ref) [pix], Green CAL order 15
MEDWGC16	0.05689659903075574	median(WLS-ref) [pix], Green CAL order 16
MEDWGC17	0.05799796936635278	median(WLS-ref) [pix], Green CAL order 17
MEDWGC18	0.05977858081323324	median(WLS-ref) [pix], Green CAL order 18
MEDWGC19	0.05933011664552964	median(WLS-ref) [pix], Green CAL order 19
MEDWGC20	0.02039557347271826	median(WLS-ref) [pix], Green CAL order 20
MEDWGC21	0.01469071164451269	median(WLS-ref) [pix], Green CAL order 21
MEDWGC22	0.01556792950074907	median(WLS-ref) [pix], Green CAL order 22
MEDWGC23	0.02567657109459727	median(WLS-ref) [pix], Green CAL order 23
MEDWGC24	0.01886271649343081	median(WLS-ref) [pix], Green CAL order 24
MEDWGC25	0.02467545689967796	median(WLS-ref) [pix], Green CAL order 25
MEDWGC26	0.02253866767322533	median(WLS-ref) [pix], Green CAL order 26
MEDWGC27	0.02413396211524686	median(WLS-ref) [pix], Green CAL order 27
MEDWGC28	0.02614400310330867	median(WLS-ref) [pix], Green CAL order 28
MEDWGC29	0.02065120343963631	median(WLS-ref) [pix], Green CAL order 29
MEDWGC30	0.02496588560225525	median(WLS-ref) [pix], Green CAL order 30
MEDWGC31	0.02372334722007593	median(WLS-ref) [pix], Green CAL order 31
MEDWGC32	0.02298588484514256	median(WLS-ref) [pix], Green CAL order 32
MEDWGC33	0.03174963955370602	median(WLS-ref) [pix], Green CAL order 33
MEDWGC34	0.02994077329192967	median(WLS-ref) [pix], Green CAL order 34
MEDWRS00	0.14737441778381707	median(WLS-ref) [pix], Red SCI order 00
MEDWRS01	0.01605011658399845	median(WLS-ref) [pix], Red SCI order 01
MEDWRS02	0.01251027957709054	median(WLS-ref) [pix], Red SCI order 02
MEDWRS03	0.01208984476219253	median(WLS-ref) [pix], Red SCI order 03
MEDWRS04	0.01404063413351495	median(WLS-ref) [pix], Red SCI order 04
MEDWRS05	0.01120664703576910	median(WLS-ref) [pix], Red SCI order 05
MEDWRS06	0.01216095722727351	median(WLS-ref) [pix], Red SCI order 06
MEDWRS07	0.01235166659555654	median(WLS-ref) [pix], Red SCI order 07
MEDWRS08	0.00949950978717383	median(WLS-ref) [pix], Red SCI order 08
MEDWRS09	0.01021892014684022	median(WLS-ref) [pix], Red SCI order 09
MEDWRS10	0.00980646922019491	median(WLS-ref) [pix], Red SCI order 10
MEDWRS11	0.01101049313441161	median(WLS-ref) [pix], Red SCI order 11
MEDWRS12	0.00919413709072650	median(WLS-ref) [pix], Red SCI order 12
MEDWRS13	0.01056749073994317	median(WLS-ref) [pix], Red SCI order 13
MEDWRS14	0.00968151304526763	median(WLS-ref) [pix], Red SCI order 14
MEDWRS15	0.00747020456927852	median(WLS-ref) [pix], Red SCI order 15
MEDWRS16	0.00900807961360823	median(WLS-ref) [pix], Red SCI order 16
MEDWRS17	0.00793336762441429	median(WLS-ref) [pix], Red SCI order 17
MEDWRS18	0.00809367089243644	median(WLS-ref) [pix], Red SCI order 18
MEDWRS19	0.00817346044941215	median(WLS-ref) [pix], Red SCI order 19
MEDWRS20	0.00810784393605007	median(WLS-ref) [pix], Red SCI order 20
MEDWRS21	0.00863543252631332	median(WLS-ref) [pix], Red SCI order 21
MEDWRS22	0.00667107242352223	median(WLS-ref) [pix], Red SCI order 22
MEDWRS23	0.00964459955074390	median(WLS-ref) [pix], Red SCI order 23
MEDWRS24	0.00782950831958490	median(WLS-ref) [pix], Red SCI order 24
MEDWRS25	0.00818671288856180	median(WLS-ref) [pix], Red SCI order 25
MEDWRS26	0.01089524201074648	median(WLS-ref) [pix], Red SCI order 26
MEDWRS27	0.00942019614768527	median(WLS-ref) [pix], Red SCI order 27
MEDWRS28	0.01388440717847755	median(WLS-ref) [pix], Red SCI order 28
MEDWRS29	0.01300712812182218	median(WLS-ref) [pix], Red SCI order 29
MEDWRS30	0.01196466888834003	median(WLS-ref) [pix], Red SCI order 30
MEDWRS31	0.01086453356594114	median(WLS-ref) [pix], Red SCI order 31
MEDWRK00	0	median(WLS-ref) [pix], Red SKY order 00
MEDWRK01	0	median(WLS-ref) [pix], Red SKY order 01
MEDWRK02	0	median(WLS-ref) [pix], Red SKY order 02
MEDWRK03	0	median(WLS-ref) [pix], Red SKY order 03
MEDWRK04	0	median(WLS-ref) [pix], Red SKY order 04
MEDWRK05	0	median(WLS-ref) [pix], Red SKY order 05
MEDWRK06	0	median(WLS-ref) [pix], Red SKY order 06
MEDWRK07	0	median(WLS-ref) [pix], Red SKY order 07
MEDWRK08	0	median(WLS-ref) [pix], Red SKY order 08
MEDWRK09	0	median(WLS-ref) [pix], Red SKY order 09
MEDWRK10	0	median(WLS-ref) [pix], Red SKY order 10
MEDWRK11	0	median(WLS-ref) [pix], Red SKY order 11
MEDWRK12	0	median(WLS-ref) [pix], Red SKY order 12
MEDWRK13	0	median(WLS-ref) [pix], Red SKY order 13
MEDWRK14	0	median(WLS-ref) [pix], Red SKY order 14
MEDWRK15	0	median(WLS-ref) [pix], Red SKY order 15
MEDWRK16	0	median(WLS-ref) [pix], Red SKY order 16
MEDWRK17	0	median(WLS-ref) [pix], Red SKY order 17
MEDWRK18	0	median(WLS-ref) [pix], Red SKY order 18
MEDWRK19	0	median(WLS-ref) [pix], Red SKY order 19
MEDWRK20	0	median(WLS-ref) [pix], Red SKY order 20
MEDWRK21	0	median(WLS-ref) [pix], Red SKY order 21
MEDWRK22	0	median(WLS-ref) [pix], Red SKY order 22
MEDWRK23	0	median(WLS-ref) [pix], Red SKY order 23
MEDWRK24	0	median(WLS-ref) [pix], Red SKY order 24
MEDWRK25	0	median(WLS-ref) [pix], Red SKY order 25
MEDWRK26	0	median(WLS-ref) [pix], Red SKY order 26
MEDWRK27	0	median(WLS-ref) [pix], Red SKY order 27
MEDWRK28	0	median(WLS-ref) [pix], Red SKY order 28
MEDWRK29	0	median(WLS-ref) [pix], Red SKY order 29
MEDWRK30	0	median(WLS-ref) [pix], Red SKY order 30
MEDWRK31	0	median(WLS-ref) [pix], Red SKY order 31
MEDWRC00	0	median(WLS-ref) [pix], Red CAL order 00
MEDWRC01	0.00686690781209765	median(WLS-ref) [pix], Red CAL order 01
MEDWRC02	0.00545110970696466	median(WLS-ref) [pix], Red CAL order 02
MEDWRC03	0.00689834810735561	median(WLS-ref) [pix], Red CAL order 03
MEDWRC04	0.00539207715117377	median(WLS-ref) [pix], Red CAL order 04
MEDWRC05	0.00906479431244748	median(WLS-ref) [pix], Red CAL order 05
MEDWRC06	0.00955249018678067	median(WLS-ref) [pix], Red CAL order 06
MEDWRC07	0.00686994366306185	median(WLS-ref) [pix], Red CAL order 07
MEDWRC08	0.00697442855631850	median(WLS-ref) [pix], Red CAL order 08
MEDWRC09	0.00841597646023265	median(WLS-ref) [pix], Red CAL order 09
MEDWRC10	0.00710531878888686	median(WLS-ref) [pix], Red CAL order 10
MEDWRC11	0.00882915651570540	median(WLS-ref) [pix], Red CAL order 11
MEDWRC12	0.00844617425860556	median(WLS-ref) [pix], Red CAL order 12
MEDWRC13	0.00392342808050990	median(WLS-ref) [pix], Red CAL order 13
MEDWRC14	0.00855715540991054	median(WLS-ref) [pix], Red CAL order 14
MEDWRC15	0.00636581146728872	median(WLS-ref) [pix], Red CAL order 15
MEDWRC16	0.00756114195177540	median(WLS-ref) [pix], Red CAL order 16
MEDWRC17	0.00614750391822687	median(WLS-ref) [pix], Red CAL order 17
MEDWRC18	0.00653978088701918	median(WLS-ref) [pix], Red CAL order 18
MEDWRC19	0.00543963863511228	median(WLS-ref) [pix], Red CAL order 19
MEDWRC20	0.01389914991279786	median(WLS-ref) [pix], Red CAL order 20
MEDWRC21	0.01080129994161541	median(WLS-ref) [pix], Red CAL order 21
MEDWRC22	0.01100053582456254	median(WLS-ref) [pix], Red CAL order 22
MEDWRC23	0.00760929632622137	median(WLS-ref) [pix], Red CAL order 23
MEDWRC24	0.01795581160788173	median(WLS-ref) [pix], Red CAL order 24
MEDWRC25	0.01264008430028203	median(WLS-ref) [pix], Red CAL order 25
MEDWRC26	0.00793447409812340	median(WLS-ref) [pix], Red CAL order 26
MEDWRC27	0.00781423522196742	median(WLS-ref) [pix], Red CAL order 27
MEDWRC28	0.01379038876707553	median(WLS-ref) [pix], Red CAL order 28
MEDWRC29	0.00914032555395159	median(WLS-ref) [pix], Red CAL order 29
MEDWRC30	0.01440898205622853	median(WLS-ref) [pix], Red CAL order 30
MEDWRC31	0.00899757354138056	median(WLS-ref) [pix], Red CAL order 31
STDWGS00	0.09425503797584399	stddev(WLS-ref) [pix], Green SCI order 00
STDWGS01	0.08849442069640202	stddev(WLS-ref) [pix], Green SCI order 01
STDWGS02	0.08371697673720710	stddev(WLS-ref) [pix], Green SCI order 02
STDWGS03	0.07230817847702598	stddev(WLS-ref) [pix], Green SCI order 03
STDWGS04	0.07193348907142433	stddev(WLS-ref) [pix], Green SCI order 04
STDWGS05	0.06293971912283422	stddev(WLS-ref) [pix], Green SCI order 05
STDWGS06	0.05077530529576392	stddev(WLS-ref) [pix], Green SCI order 06
STDWGS07	0.04623384357483791	stddev(WLS-ref) [pix], Green SCI order 07
STDWGS08	0.04122733863942630	stddev(WLS-ref) [pix], Green SCI order 08
STDWGS09	0.04133073040155002	stddev(WLS-ref) [pix], Green SCI order 09
STDWGS10	0.04083729926838733	stddev(WLS-ref) [pix], Green SCI order 10
STDWGS11	0.04227960238675732	stddev(WLS-ref) [pix], Green SCI order 11
STDWGS12	0.08484872198316575	stddev(WLS-ref) [pix], Green SCI order 12
STDWGS13	0.08393586844081193	stddev(WLS-ref) [pix], Green SCI order 13
STDWGS14	0.08276874070896721	stddev(WLS-ref) [pix], Green SCI order 14
STDWGS15	0.08521370837150342	stddev(WLS-ref) [pix], Green SCI order 15
STDWGS16	0.08327132770466454	stddev(WLS-ref) [pix], Green SCI order 16
STDWGS17	0.08582583111034116	stddev(WLS-ref) [pix], Green SCI order 17
STDWGS18	0.08304781196470204	stddev(WLS-ref) [pix], Green SCI order 18
STDWGS19	0.08315949296736645	stddev(WLS-ref) [pix], Green SCI order 19
STDWGS20	0.01080036766826940	stddev(WLS-ref) [pix], Green SCI order 20
STDWGS21	0.00971051734467042	stddev(WLS-ref) [pix], Green SCI order 21
STDWGS22	0.01159860516701642	stddev(WLS-ref) [pix], Green SCI order 22
STDWGS23	0.01184356604724085	stddev(WLS-ref) [pix], Green SCI order 23
STDWGS24	0.01154525605513285	stddev(WLS-ref) [pix], Green SCI order 24
STDWGS25	0.01147245109164928	stddev(WLS-ref) [pix], Green SCI order 25
STDWGS26	0.01092980897956587	stddev(WLS-ref) [pix], Green SCI order 26
STDWGS27	0.01147811995537022	stddev(WLS-ref) [pix], Green SCI order 27
STDWGS28	0.01290072360591021	stddev(WLS-ref) [pix], Green SCI order 28
STDWGS29	0.01082521041557961	stddev(WLS-ref) [pix], Green SCI order 29
STDWGS30	0.01187839614600258	stddev(WLS-ref) [pix], Green SCI order 30
STDWGS31	0.01217203007446422	stddev(WLS-ref) [pix], Green SCI order 31
STDWGS32	0.01114056458430155	stddev(WLS-ref) [pix], Green SCI order 32
STDWGS33	0.01028957107757591	stddev(WLS-ref) [pix], Green SCI order 33
STDWGS34	0.01339571095931450	stddev(WLS-ref) [pix], Green SCI order 34
STDWGK00	0	stddev(WLS-ref) [pix], Green SKY order 00
STDWGK01	0	stddev(WLS-ref) [pix], Green SKY order 01
STDWGK02	0	stddev(WLS-ref) [pix], Green SKY order 02
STDWGK03	0	stddev(WLS-ref) [pix], Green SKY order 03
STDWGK04	0	stddev(WLS-ref) [pix], Green SKY order 04
STDWGK05	0	stddev(WLS-ref) [pix], Green SKY order 05
STDWGK06	0	stddev(WLS-ref) [pix], Green SKY order 06
STDWGK07	0	stddev(WLS-ref) [pix], Green SKY order 07
STDWGK08	0	stddev(WLS-ref) [pix], Green SKY order 08
STDWGK09	0	stddev(WLS-ref) [pix], Green SKY order 09
STDWGK10	0	stddev(WLS-ref) [pix], Green SKY order 10
STDWGK11	0	stddev(WLS-ref) [pix], Green SKY order 11
STDWGK12	0	stddev(WLS-ref) [pix], Green SKY order 12
STDWGK13	0	stddev(WLS-ref) [pix], Green SKY order 13
STDWGK14	0	stddev(WLS-ref) [pix], Green SKY order 14
STDWGK15	0	stddev(WLS-ref) [pix], Green SKY order 15
STDWGK16	0	stddev(WLS-ref) [pix], Green SKY order 16
STDWGK17	0	stddev(WLS-ref) [pix], Green SKY order 17
STDWGK18	0	stddev(WLS-ref) [pix], Green SKY order 18
STDWGK19	0	stddev(WLS-ref) [pix], Green SKY order 19
STDWGK20	0	stddev(WLS-ref) [pix], Green SKY order 20
STDWGK21	0	stddev(WLS-ref) [pix], Green SKY order 21
STDWGK22	0	stddev(WLS-ref) [pix], Green SKY order 22
STDWGK23	0	stddev(WLS-ref) [pix], Green SKY order 23
STDWGK24	0	stddev(WLS-ref) [pix], Green SKY order 24
STDWGK25	0	stddev(WLS-ref) [pix], Green SKY order 25
STDWGK26	0	stddev(WLS-ref) [pix], Green SKY order 26
STDWGK27	0	stddev(WLS-ref) [pix], Green SKY order 27
STDWGK28	0	stddev(WLS-ref) [pix], Green SKY order 28
STDWGK29	0	stddev(WLS-ref) [pix], Green SKY order 29
STDWGK30	0	stddev(WLS-ref) [pix], Green SKY order 30
STDWGK31	0	stddev(WLS-ref) [pix], Green SKY order 31
STDWGK32	0	stddev(WLS-ref) [pix], Green SKY order 32
STDWGK33	0	stddev(WLS-ref) [pix], Green SKY order 33
STDWGK34	0	stddev(WLS-ref) [pix], Green SKY order 34
STDWGC00	0	stddev(WLS-ref) [pix], Green CAL order 00
STDWGC01	0	stddev(WLS-ref) [pix], Green CAL order 01
STDWGC02	0	stddev(WLS-ref) [pix], Green CAL order 02
STDWGC03	0	stddev(WLS-ref) [pix], Green CAL order 03
STDWGC04	0	stddev(WLS-ref) [pix], Green CAL order 04
STDWGC05	0	stddev(WLS-ref) [pix], Green CAL order 05
STDWGC06	0	stddev(WLS-ref) [pix], Green CAL order 06
STDWGC07	0	stddev(WLS-ref) [pix], Green CAL order 07
STDWGC08	0	stddev(WLS-ref) [pix], Green CAL order 08
STDWGC09	0	stddev(WLS-ref) [pix], Green CAL order 09
STDWGC10	0	stddev(WLS-ref) [pix], Green CAL order 10
STDWGC11	0	stddev(WLS-ref) [pix], Green CAL order 11
STDWGC12	0.05655946244029121	stddev(WLS-ref) [pix], Green CAL order 12
STDWGC13	0.05512974209761621	stddev(WLS-ref) [pix], Green CAL order 13
STDWGC14	0.05620368994990578	stddev(WLS-ref) [pix], Green CAL order 14
STDWGC15	0.06086452902834840	stddev(WLS-ref) [pix], Green CAL order 15
STDWGC16	0.05689659903075574	stddev(WLS-ref) [pix], Green CAL order 16
STDWGC17	0.05799796936635278	stddev(WLS-ref) [pix], Green CAL order 17
STDWGC18	0.05977858081323324	stddev(WLS-ref) [pix], Green CAL order 18
STDWGC19	0.05933011664552964	stddev(WLS-ref) [pix], Green CAL order 19
STDWGC20	0.02039557347271826	stddev(WLS-ref) [pix], Green CAL order 20
STDWGC21	0.01469071164451269	stddev(WLS-ref) [pix], Green CAL order 21
STDWGC22	0.01556792950074907	stddev(WLS-ref) [pix], Green CAL order 22
STDWGC23	0.02567657109459727	stddev(WLS-ref) [pix], Green CAL order 23
STDWGC24	0.01886271649343081	stddev(WLS-ref) [pix], Green CAL order 24
STDWGC25	0.02467545689967796	stddev(WLS-ref) [pix], Green CAL order 25
STDWGC26	0.02253866767322533	stddev(WLS-ref) [pix], Green CAL order 26
STDWGC27	0.02413396211524686	stddev(WLS-ref) [pix], Green CAL order 27
STDWGC28	0.02614400310330867	stddev(WLS-ref) [pix], Green CAL order 28
STDWGC29	0.02065120343963631	stddev(WLS-ref) [pix], Green CAL order 29
STDWGC30	0.02496588560225525	stddev(WLS-ref) [pix], Green CAL order 30
STDWGC31	0.02372334722007593	stddev(WLS-ref) [pix], Green CAL order 31
STDWGC32	0.02298588484514256	stddev(WLS-ref) [pix], Green CAL order 32
STDWGC33	0.03174963955370602	stddev(WLS-ref) [pix], Green CAL order 33
STDWGC34	0.02994077329192967	stddev(WLS-ref) [pix], Green CAL order 34
STDWRS00	0.14737441778381707	stddev(WLS-ref) [pix], Red SCI order 00
STDWRS01	0.01605011658399845	stddev(WLS-ref) [pix], Red SCI order 01
STDWRS02	0.01251027957709054	stddev(WLS-ref) [pix], Red SCI order 02
STDWRS03	0.01208984476219253	stddev(WLS-ref) [pix], Red SCI order 03
STDWRS04	0.01404063413351495	stddev(WLS-ref) [pix], Red SCI order 04
STDWRS05	0.01120664703576910	stddev(WLS-ref) [pix], Red SCI order 05
STDWRS06	0.01216095722727351	stddev(WLS-ref) [pix], Red SCI order 06
STDWRS07	0.01235166659555654	stddev(WLS-ref) [pix], Red SCI order 07
STDWRS08	0.00949950978717383	stddev(WLS-ref) [pix], Red SCI order 08
STDWRS09	0.01021892014684022	stddev(WLS-ref) [pix], Red SCI order 09
STDWRS10	0.00980646922019491	stddev(WLS-ref) [pix], Red SCI order 10
STDWRS11	0.01101049313441161	stddev(WLS-ref) [pix], Red SCI order 11
STDWRS12	0.00919413709072650	stddev(WLS-ref) [pix], Red SCI order 12
STDWRS13	0.01056749073994317	stddev(WLS-ref) [pix], Red SCI order 13
STDWRS14	0.00968151304526763	stddev(WLS-ref) [pix], Red SCI order 14
STDWRS15	0.00747020456927852	stddev(WLS-ref) [pix], Red SCI order 15
STDWRS16	0.00900807961360823	stddev(WLS-ref) [pix], Red SCI order 16
STDWRS17	0.00793336762441429	stddev(WLS-ref) [pix], Red SCI order 17
STDWRS18	0.00809367089243644	stddev(WLS-ref) [pix], Red SCI order 18
STDWRS19	0.00817346044941215	stddev(WLS-ref) [pix], Red SCI order 19
STDWRS20	0.00810784393605007	stddev(WLS-ref) [pix], Red SCI order 20
STDWRS21	0.00863543252631332	stddev(WLS-ref) [pix], Red SCI order 21
STDWRS22	0.00667107242352223	stddev(WLS-ref) [pix], Red SCI order 22
STDWRS23	0.00964459955074390	stddev(WLS-ref) [pix], Red SCI order 23
STDWRS24	0.00782950831958490	stddev(WLS-ref) [pix], Red SCI order 24
STDWRS25	0.00818671288856180	stddev(WLS-ref) [pix], Red SCI order 25
STDWRS26	0.01089524201074648	stddev(WLS-ref) [pix], Red SCI order 26
STDWRS27	0.00942019614768527	stddev(WLS-ref) [pix], Red SCI order 27
STDWRS28	0.01388440717847755	stddev(WLS-ref) [pix], Red SCI order 28
STDWRS29	0.01300712812182218	stddev(WLS-ref) [pix], Red SCI order 29
STDWRS30	0.01196466888834003	stddev(WLS-ref) [pix], Red SCI order 30
STDWRS31	0.01086453356594114	stddev(WLS-ref) [pix], Red SCI order 31
STDWRK00	0	stddev(WLS-ref) [pix], Red SKY order 00
STDWRK01	0	stddev(WLS-ref) [pix], Red SKY order 01
STDWRK02	0	stddev(WLS-ref) [pix], Red SKY order 02
STDWRK03	0	stddev(WLS-ref) [pix], Red SKY order 03
STDWRK04	0	stddev(WLS-ref) [pix], Red SKY order 04
STDWRK05	0	stddev(WLS-ref) [pix], Red SKY order 05
STDWRK06	0	stddev(WLS-ref) [pix], Red SKY order 06
STDWRK07	0	stddev(WLS-ref) [pix], Red SKY order 07
STDWRK08	0	stddev(WLS-ref) [pix], Red SKY order 08
STDWRK09	0	stddev(WLS-ref) [pix], Red SKY order 09
STDWRK10	0	stddev(WLS-ref) [pix], Red SKY order 10
STDWRK11	0	stddev(WLS-ref) [pix], Red SKY order 11
STDWRK12	0	stddev(WLS-ref) [pix], Red SKY order 12
STDWRK13	0	stddev(WLS-ref) [pix], Red SKY order 13
STDWRK14	0	stddev(WLS-ref) [pix], Red SKY order 14
STDWRK15	0	stddev(WLS-ref) [pix], Red SKY order 15
STDWRK16	0	stddev(WLS-ref) [pix], Red SKY order 16
STDWRK17	0	stddev(WLS-ref) [pix], Red SKY order 17
STDWRK18	0	stddev(WLS-ref) [pix], Red SKY order 18
STDWRK19	0	stddev(WLS-ref) [pix], Red SKY order 19
STDWRK20	0	stddev(WLS-ref) [pix], Red SKY order 20
STDWRK21	0	stddev(WLS-ref) [pix], Red SKY order 21
STDWRK22	0	stddev(WLS-ref) [pix], Red SKY order 22
STDWRK23	0	stddev(WLS-ref) [pix], Red SKY order 23
STDWRK24	0	stddev(WLS-ref) [pix], Red SKY order 24
STDWRK25	0	stddev(WLS-ref) [pix], Red SKY order 25
STDWRK26	0	stddev(WLS-ref) [pix], Red SKY order 26
STDWRK27	0	stddev(WLS-ref) [pix], Red SKY order 27
STDWRK28	0	stddev(WLS-ref) [pix], Red SKY order 28
STDWRK29	0	stddev(WLS-ref) [pix], Red SKY order 29
STDWRK30	0	stddev(WLS-ref) [pix], Red SKY order 30
STDWRK31	0	stddev(WLS-ref) [pix], Red SKY order 31
STDWRC00	0	stddev(WLS-ref) [pix], Red CAL order 00
STDWRC01	0.00686690781209765	stddev(WLS-ref) [pix], Red CAL order 01
STDWRC02	0.00545110970696466	stddev(WLS-ref) [pix], Red CAL order 02
STDWRC03	0.00689834810735561	stddev(WLS-ref) [pix], Red CAL order 03
STDWRC04	0.00539207715117377	stddev(WLS-ref) [pix], Red CAL order 04
STDWRC05	0.00906479431244748	stddev(WLS-ref) [pix], Red CAL order 05
STDWRC06	0.00955249018678067	stddev(WLS-ref) [pix], Red CAL order 06
STDWRC07	0.00686994366306185	stddev(WLS-ref) [pix], Red CAL order 07
STDWRC08	0.00697442855631850	stddev(WLS-ref) [pix], Red CAL order 08
STDWRC09	0.00841597646023265	stddev(WLS-ref) [pix], Red CAL order 09
STDWRC10	0.00710531878888686	stddev(WLS-ref) [pix], Red CAL order 10
STDWRC11	0.00882915651570540	stddev(WLS-ref) [pix], Red CAL order 11
STDWRC12	0.00844617425860556	stddev(WLS-ref) [pix], Red CAL order 12
STDWRC13	0.00392342808050990	stddev(WLS-ref) [pix], Red CAL order 13
STDWRC14	0.00855715540991054	stddev(WLS-ref) [pix], Red CAL order 14
STDWRC15	0.00636581146728872	stddev(WLS-ref) [pix], Red CAL order 15
STDWRC16	0.00756114195177540	stddev(WLS-ref) [pix], Red CAL order 16
STDWRC17	0.00614750391822687	stddev(WLS-ref) [pix], Red CAL order 17
STDWRC18	0.00653978088701918	stddev(WLS-ref) [pix], Red CAL order 18
STDWRC19	0.00543963863511228	stddev(WLS-ref) [pix], Red CAL order 19
STDWRC20	0.01389914991279786	stddev(WLS-ref) [pix], Red CAL order 20
STDWRC21	0.01080129994161541	stddev(WLS-ref) [pix], Red CAL order 21
STDWRC22	0.01100053582456254	stddev(WLS-ref) [pix], Red CAL order 22
STDWRC23	0.00760929632622137	stddev(WLS-ref) [pix], Red CAL order 23
STDWRC24	0.01795581160788173	stddev(WLS-ref) [pix], Red CAL order 24
STDWRC25	0.01264008430028203	stddev(WLS-ref) [pix], Red CAL order 25
STDWRC26	0.00793447409812340	stddev(WLS-ref) [pix], Red CAL order 26
STDWRC27	0.00781423522196742	stddev(WLS-ref) [pix], Red CAL order 27
STDWRC28	0.01379038876707553	stddev(WLS-ref) [pix], Red CAL order 28
STDWRC29	0.00914032555395159	stddev(WLS-ref) [pix], Red CAL order 29
STDWRC30	0.01440898205622853	stddev(WLS-ref) [pix], Red CAL order 30
STDWRC31	0.00899757354138056	stddev(WLS-ref) [pix], Red CAL order 31

The keywords above related to the signal-to-noise ratio in L1 spectra all start with ‘SNR’. These measurements were made using modules/quicklook/src/analyze_l1.py. The image below (click to enlarge) shows the spectral orders and wavelengths at which SNR is measured.

Keywords related to flux ratios between orders (FR452652, FR548652, FR747652, FR852652) are the ratios between the 95th percentile in flux for the spectral orders containing 452 nm, 548 nm, 747 nm, and 852 nm, all normalized by the spectral order containing 652 nm. These are the same spectral orders used for the SNR calculations and use the SCI2 orderlet.

Keywords related to orderlet flux ratios (e.g., FR12M452 and its uncertainty FR12U452) are computed in 500-pixel regions in the centers in the same spectral orders as are used for the SNR calculations.

L1 Spectrum show wavelengths where SNR is measured

L2 Primary Extension Header

The L2 file inherits all L0, 2D, and L1 keywords. Below are additional important keywords.

Keyword	Value (example)	Comment
DRPTAG	v2.5.2	Git version number of KPF-Pipeline used to make L2 (in the time series database, DRPTAG is listed as DRPTAGL2 for L2 files)
DRPHSH	‘ccf5f6ebe0c9ae7d43706cc57fed2ecdeb540a17’	Git commit hash version of KPF-Pipeline used to make L2 (in the time series database, DRPHSH is listed as DRPHSHL2 for L2 files)
TIMCHKL2	1	QC: 1 = consistent times in L2 file
DATAPRL2	1	QC: 1 = L2 data is present
QCPCBCV	1	QC: 1 = PCBCV values within acceptable range
CCFRV	19.4247572623	Average of CCD1RV and CCD2RV using weights from RV table
CCFERV	0.001175044	Error on CCFRV
CCFRVC	19.4247572623	Average of CCD1RVC and CCD2RVC using weights from RV table
CCFERVC	0.001175044	Error on CCFRVC
CCFBJD	2460662.094073044	Weighted average of BJD times for spectral orders (for solar observations, HJD is used)
CCFBCV	21.751977696646478	Weighted average of barycentric RV (km/s) for spectral orders
BJDSTD	41.66004757176901	Weighted stddev of BJD for spectral orders (sec) (for solar observations, HJD is used)
BJDRNG	147.1386909484863	Range(BJD) for non-zero-weight spectral orders (sec)
BCVSTD	0.7123626558325037	Weighted stddev of BCV for spectral orders (m/s)
BCVRNG	2.516760888678249	Range(BCV) for non-zero-weight spectral orders (m/s)
MAXPCBCV	0.6894375932041458	Maximum % change from CCFBCV for non-zero-weight spectral orders (%)
MINPCBCV	-0.47031634755679774	Minimum % change from CCFBCV for non-zero-weight spectral orders (%)
DRFTOBS	KP.20250708.20189.17	ObsID of 1st reference drift observation
DRFTOBS2	KP.20250708.20189.17	ObsID of 2nd reference drift observation
DRFTDEL	1.2114297222222221	Time to 1st drift correction observation (hr)
DRFTDEL2	1.2114297222222221	Time to 2nd drift correction observation (hr)
DRFTCOR	1	Drift correction applied (true/false)
DRFTRV	0.2738220612333333	Drift correction RV (m/s)
DRFTMETH	nearest_interpolation	Drift correction method name
AGESLFC	0.621	Days since last good LFC frame (depends on processing order)
AGEULFC	0.621	Days until next good LFC frame (depends on processing order)
AGESETA	0.621	Days since last good Etalon frame (depends on processing order)
AGEUETA	0.621	Days until next good Etalon frame (depends on processing order)

L2 RV Extension Header

The header to the RV extension (not the primary extension) contains this information about RVs computed using the CCF technique. CCD1 refers to the Green CCD (445-600 nm) and CCD2 refers to the Red CCD (600-870 nm).

To-do, add notes on:

recommendations for which RVs to use in papers
how the orders are averaged using weights.
precisely how the RVs are computed (refer to a paper on the CCF algorithm that we’re using)
how the errors are computed
is BJD = BJD _TBD?
Test equation for rst syntax: $y = x^2$

Keyword	Value (example)	Comment
CCD1ROW	0	Row number in the RV table (below) of the bluest order on the Green CCD
CCD1RV1	19.4247572623	RV (km/s) of SCI1 (all orders, Green CCD); corrected for barycentric RV
CCD1ERV1	0.0013815112	Error on CCD1RV1
CCD1RV2	19.3879442221	RV (km/s) of SCI2 (all orders, Green CCD); corrected for barycentric RV
CCD1ERV2	0.001175044	Error on CCD1RV2
CCD1RV3	19.3740241724	RV (km/s) of SCI3 (all orders, Green CCD); corrected for barycentric RV
CCD1ERV3	0.0012185926	Error on CCD1RV3
CCD1RVC	0.0	RV (km/s) of CAL (all orders, Green CCD); corrected for barycentric RV
CCD1ERVC	0.0	Error on CCD1RVC
CCD1RVS	18.2490292404	RV (km/s) of SKY (all orders, Green CCD); corrected for barycentric RV
CCD1ERVS	0.0	Error on CCD1RVS
CCD1RV	19.395608349	RV (km/s) of average of SCI1/SCI2/SCI3 (all orders, Green CCD); corrected for barycentric RV
CCD1ERV	0.0007214256	Error on CCD1RV
CCD1BJD	2460237.787166463	Photon-weighted mid-time (BJD) for CCD1RV (for solar observations, HJD is used)
CCD2ROW	35	Row number in the RV table (below) of the bluest order on the Red CCD
CCD2RV1	19.4423673077	RV (km/s) of SCI1 (all orders, Red CCD); corrected for barycentric RV
CCD2ERV1	0.004087698	Error on CCD2RV1
CCD2RV2	19.3979186805	RV (km/s) of SCI2 (all orders, Red CCD); corrected for barycentric RV
CCD2ERV2	0.0034324475	Error on CCD2RV2
CCD2RV3	19.3808011301	RV (km/s) of SCI3 (all orders, Red CCD); corrected for barycentric RV
CCD2ERV3	0.0035412025	Error on CCD2RV3
CCD2RVC	0.0	RV (km/s) of CAL (all orders, Red CCD); corrected for barycentric RV
CCD2ERVC	0.0	Error on CCD2RVC
CCD2RVS	51.9730319697	RV (km/s) of SKY (all orders, Red CCD); corrected for barycentric RV
CCD2ERVS	0.0	Error on CCD2RVS
CCD2RV	19.4069470745	RV (km/s) of average of SCI1/SCI2/SCI3 (all orders, Red CCD); corrected for barycentric RV
CCD2ERV	0.0021111409	Error on CCD2RV
CCD2BJD	2460237.787150946	Photon-weighted mid-time (BJD) for CCD2RV (for solar observations, HJD is used)

L2 RV Extension

The RV extension in an L2 file contains the order-by-order RV information for each orderlet (SCI1, SCI2, SCI3, CAL, SKY) determined by the CCF technique. This extension is a FITS table that is converted into a Pandas dataframe if the L2 file is read by kpfpipe.models.level2.KPF2.from_fits(). The table rows correspond to the spectral orders, with the values of the keywords CCD1ROW and CCD2ROW in the RV extension header giving the rows where the Green and Red orders start, respectively. The table columns are listed below.

Column	Value (example)	Comment
orderlet1	19.250267	RV (km/s) of SCI1 (Green CCD); corrected for barycentric RV
orderlet2	19.264743	RV (km/s) of SCI2 (Green CCD); corrected for barycentric RV
orderlet3	19.388630	RV (km/s) of SCI3 (Green CCD); corrected for barycentric RV
s_wavelength	4505.907677	starting wavelength for order
e_wavelength	4462.664498	ending wavelength for order
segment no.	0	Segment number (for full-order CCF RVs, segment no. = order no.)
order no.	0	Order number
RV	19.306370	RV (km/s) of average of SCI1/SCI2/SCI3 (Green CCD); corrected for barycentric RV
RV error	0.019248	error on ‘RV’
CAL RV	0.0	RV (km/s) of CAL (Green CCD); corrected for barycentric RV
CAL error	0.0	error on ‘CAL RV’
SKY RV	0.0	RV (km/s) of sKY (Green CCD); corrected for barycentric RV
SKY error	0.0	error on ‘SKY RV’
CCFBJD	2.460238e+06	Photon-weighted mid-time (BJD) for CCD1RV (for solar observations, HJD is used)
Bary_RVC	-8.729925	Barycentric RV (km/s)
source1	GREEN_SCI_FLUX1	name of array for orderlet1 (SCI1)
source2	GREEN_SCI_FLUX2	name of array for orderlet2 (SCI2)
source3	GREEN_SCI_FLUX3	name of array for orderlet3 (SCI3)
source CAL	GREEN_CAL_FLUX	name of array for CAL
source SKY	GREEN_SKY_FLUX	name of array for SKY
CCF Weights	0.2590	weight for this order

TELEMETRY Extension

Each KPF file (starting with L0) contains a table telemetry on >100 sensors or state values. The table contains the average, standard deviation, minimum, and maximum values for each measurement.

Keyword	Description [unit]
kpfmet.BENCH_BOTTOM_BETWEEN_CAMERAS	Bench bottom between cameras temp (sensor C2) [C]
kpfmet.BENCH_BOTTOM_COLLIMATOR	Bench bottom collimator temp (sensor C3) [C]
kpfmet.BENCH_BOTTOM_DCUT	Bench bottom D-cut temp (sensor C4) [C]
kpfmet.BENCH_BOTTOM_ECHELLE	Bench bottom echelle Cam temp (sensor B) [C]
kpfmet.BENCH_TOP_BETWEEN_CAMERAS	Bench top between cameras temp (sensor D4) [C]
kpfmet.BENCH_TOP_COLL	Bench top collimator temp (sensor D5) [C]
kpfmet.BENCH_TOP_DCUT	Bench top D-cut temp (sensor D3) [C]
kpfmet.BENCH_TOP_ECHELLE_CAM	Bench top echelle Cam temp (sensor D1) [C]
kpfmet.CALEM_SCMBLR_CHMBR_END	Cal EM scrambler chamber end temp (sensor C1) [C]
kpfmet.CALEM_SCMBLR_FIBER_END	Cal EM scrambler fiber end temp (sensor D1) [C]
kpfmet.CAL_BENCH	Cal bench temp [C]
kpfmet.CAL_BENCH_BB_SRC	Cal bench blackbody source temp [C]
kpfmet.CAL_BENCH_BOT	Cal bench bottom temp [C]
kpfmet.CAL_BENCH_ENCL_AIR	Cal bench enclosure air temp [C]
kpfmet.CAL_BENCH_OCT_MOT	Cal bench octagon motor temp [C]
kpfmet.CAL_BENCH_TRANS_STG_MOT	Cal bench trans stage motor temp [C]
kpfmet.CAL_RACK_TOP	Cal rack top temp [C]
kpfmet.CHAMBER_EXT_BOTTOM	Chamber exterior Bottom temp (sensor B) [C]
kpfmet.CHAMBER_EXT_TOP	Chamber exterior Top temp (sensor C1) [C]
kpfmet.CRYOSTAT_G1	Within cryostat green temp (sensor D3) [C]
kpfmet.CRYOSTAT_G2	Within cryostat green temp (sensor D3) [C]
kpfmet.CRYOSTAT_G3	Within cryostat green temp (sensor D4) [C]
kpfmet.CRYOSTAT_R1	Within Cryostat red temp (sensor D2) [C]
kpfmet.CRYOSTAT_R2	Within Cryostat red temp (sensor D3) [C]
kpfmet.CRYOSTAT_R3	Within Cryostat red temp (sensor D4) [C]
kpfmet.ECHELLE_BOTTOM	Echelle Bottom temp (sensor D1) [C]
kpfmet.ECHELLE_TOP	Echelle Top temp (sensor C1) [C]
kpfmet.FF_SRC	Flat field source temp [C]
kpfmet.GREEN_CAMERA_BOTTOM	Green camera bottom temp (sensor C3) [C]
kpfmet.GREEN_CAMERA_COLLIMATOR	Green camera collimator temp (sensor C4) [C]
kpfmet.GREEN_CAMERA_ECHELLE	Green camera echelle temp (sensor D5) [C]
kpfmet.GREEN_CAMERA_TOP	Green camera Top temp (sensor C2) [C]
kpfmet.GREEN_GRISM_TOP	Green grism Top temp (sensor C5) [C]
kpfmet.GREEN_LN2_FLANGE	Green LN2 Flange temp (sensor A) [C]
kpfmet.PRIMARY_COLLIMATOR_TOP	Primary collimator Top temp (sensor D2) [C]
kpfmet.RED_CAMERA_BOTTOM	Red Camera Bottom temp (sensor D5) [C]
kpfmet.RED_CAMERA_COLLIMATOR	Red camera collimator temp (sensor C3) [C]
kpfmet.RED_CAMERA_ECHELLE	Red camera echelle temp (sensor C4) [C]
kpfmet.RED_CAMERA_TOP	Red camera top temp (sensor C5) [C]
kpfmet.RED_GRISM_TOP	Red grism top temp (sensor C2) [C]
kpfmet.RED_LN2_FLANGE	Red LN2 flange temp (sensor D1) [C]
kpfmet.REFORMATTER	Reformatter temp (sensor A) [C]
kpfmet.SCIENCE_CAL_FIBER_STG	Science Cal fiber stage temp [C]
kpfmet.SCISKY_SCMBLR_CHMBR_EN	SciSky scrambler chamber end temp (sensor A) [C]
kpfmet.SCISKY_SCMBLR_FIBER_EN	SciSky scrambler fiber end temp (sensor B) [C]
kpfmet.SIMCAL_FIBER_STG	SimCal fiber stage temp [C]
kpfmet.SKYCAL_FIBER_STG	SkyCal fiber stage temp [C]
kpfmet.TEMP	Vaisala (Hallway) temp [C]
kpfmet.TH_DAILY	ThAr Daily lamp temp [C]
kpfmet.TH_GOLD	ThAr Gold lamp temp [C]
kpfmet.U_DAILY	UNe Daily lamp temp [C]
kpfmet.U_GOLD	UNe Gold lamp temp [C]
kpfgreen.BPLANE_TEMP	Green Archon backplane temp [C]
kpfgreen.BRD10_DRVR_T	Green Archon board 10 (Driver) temp [C]
kpfgreen.BRD11_DRVR_T	Green Archon board 11 (Driver) temp [C]
kpfgreen.BRD12_LVXBIAS_T	Green Archon board 12 (LVxBias) temp [C]
kpfgreen.BRD1_HTRX_T	Green Archon board 1 (HeaterX) temp [C]
kpfgreen.BRD2_XVBIAS_T	Green Archon board 2 (XV Bias) temp [C]
kpfgreen.BRD3_LVDS_T	Green Archon board 3 (LVDS) temp [C]
kpfgreen.BRD4_DRVR_T	Green Archon board 4 (Driver) temp [C]
kpfgreen.BRD5_AD_T	Green Archon board 5 (AD) temp [C]
kpfgreen.BRD7_HTRX_T	Green Archon board 7 (HeaterX) temp [C]
kpfgreen.BRD9_HVXBIAS_T	Green Archon board 9 (HVxBias) temp [C]
kpfgreen.CF_BASE_2WT	Green tip cold finger temp (2 wire) [C]
kpfgreen.CF_BASE_T	Green base cold finger temp [C]
kpfgreen.CF_BASE_TRG	Green base cold finger heater 1A target temp [C]
kpfgreen.CF_TIP_T	Green tip cold finger temp [C]
kpfgreen.CF_TIP_TRG	Green tip cold finger heater 1B target temp [C]
kpfgreen.COL_PRESS	Green collimator ion pump pressure Torr
kpfgreen.CRYOBODY_T	Green cryobody temp [C]
kpfgreen.CRYOBODY_TRG	Green cryobody heater 7B target temp [C]
kpfgreen.CURRTEMP	Green cold head temp [C]
kpfgreen.ECH_PRESS	Green echelle ion pump pressure [Torr]
kpfgreen.KPF_CCD_T	SSL temp sensor on Green CCD [C]
kpfgreen.STA_CCD_T	STA temp sensor on Green CCD [C]
kpfgreen.STA_CCD_TRG	Green CCD heater 7A target temp [C]
kpfgreen.TEMPSET	Green set point for the cold head temp [C]
kpfred.BPLANE_TEMP	Red Archon backplane temp [C]
kpfred.BRD10_DRVR_T	Red Archon board 10 (Driver) temp [C]
kpfred.BRD11_DRVR_T	Red Archon board 11 (Driver) temp [C]
kpfred.BRD12_LVXBIAS_T	Red Archon board 12 (LVxBias) temp [C]
kpfred.BRD1_HTRX_T	Red Archon board 1 (HeaterX) temp [C]
kpfred.BRD2_XVBIAS_T	Red Archon board 2 (XV Bias) temp [C]
kpfred.BRD3_LVDS_T	Red Archon board 3 (LVDS) temp [C]
kpfred.BRD4_DRVR_T	Red Archon board 4 (Driver) temp [C]
kpfred.BRD5_AD_T	Red Archon board 5 (AD) temp [C]
kpfred.BRD7_HTRX_T	Red board Archon 7 (HeaterX) temp [C]
kpfred.BRD9_HVXBIAS_T	Red board Archon 9 (HVxBias) temp [C]
kpfred.CF_BASE_2WT	Red tip cold finger temp (2 wire) [C]
kpfred.CF_BASE_T	Red base cold finger temp [C]
kpfred.CF_BASE_TRG	Red base cold finger heater 1A target temp [C]
kpfred.CF_TIP_T	Red tip cold finger temp [C]
kpfred.CF_TIP_TRG	Red tip cold finger heater 1B target temp [C]
kpfred.COL_PRESS	Red Collimator ion pump pressure [Torr]
kpfred.CRYOBODY_T	Red Cryo Body temp [C]
kpfred.CRYOBODY_TRG	Red Cryo body heater 7B target temp [C]
kpfred.CURRTEMP	Red cold head temp [C]
kpfred.ECH_PRESS	Red ion pump pressure [Torr]
kpfred.KPF_CCD_T	SSL temp sensor on Red CCD [C]
kpfred.STA_CCD_T	STA temp sensor on Red CCD [C]
kpfred.STA_CCD_TRG	Red CCD heater 7A target temp [C]
kpfred.TEMPSET	Set point for the Red cold head temp [C]
kpfexpose.BENCH_C	HK Bench temp [C]
kpfexpose.CAMBARREL_C	HK Camera barrel temp [C]
kpfexpose.DET_XTRN_C	HK Detector external temp [C]
kpfexpose.ECHELLE_C	HK Echelle temp [C]
kpfexpose.ENCLOSURE_C	HK Enclosure temp [C]
kpfexpose.RACK_AIR_C	HK Rack air temp [C]
kpfvac.PUMP_TEMP	Vacuum motor temp [C]
kpf_hk.COOLTARG	HK target temp [C]
kpf_hk.CURRTEMP	HK current temp [C]
kpfgreen.COL_CURR	Green Collimator Ion pump current [A]
kpfgreen.ECH_CURR	Green Echelle Ion pump current [A]
kpfred.COL_CURR	Red Collimator Ion pump current [A]
kpfred.ECH_CURR	Red Echelle Ion pump current [A]
kpfcal.IRFLUX	LFC Fiberlock IR Intensity [counts]
kpfcal.VISFLUX	LFC Fiberlock Vis Intensity [counts]
kpfcal.BLUECUTIACT	Blue cut amplifier 0 current [A]
kpfmot.AGITSPD	Agitator motor raw velocity [counts/s]
kpfmot.AGITTOR	Agitator motor torque [V]
kpfmot.AGITAMBI_T	Agitator ambient temp [C]
kpfmot.AGITMOT_T	Agitator motor temp [C]
kpfpower.OUTLET_A1_Amps	Agitator motor current (Outlet A1) [mA]

WLS Dictionaries

See Format of Wavelength Solution Dictionaries for details.

Notes on Dates and Times in KPF Files

To do: add notes here about how DATE-BEG, DATE-MID, and DATE-END are computed. There are other datetimes in the header that should be clarified. Also, explain how exposure midpoints are computed (using the exposure meter and DATE-BEG??), which leads to BJD and ultimately the barycentric corrections.