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UCoMP L2 Header 20220202.213019
20220202.213019
Extension: 0
SIMPLE = T / image conforms to FITS standard
BITPIX = -32 / bits per data value
NAXIS = 0 / number of axes
EXTEND = T / file may contain extensions
COMMENT --- Basic info ---
ORIGIN = 'NCAR/HAO' / Institution
INSTRUME= 'UCoMP' / Upgraded Coronal Multichannel Polarimeter
TELESCOP= '20 cm One Shot' / NSO One Shot telescope
LOCATION= 'MLSO' / MLSO
OBSSWID = '1.0.6 ' / data collection software ID
DATE-OBS= '2022-02-02T21:30:19.14' / [UT] date/time when obs started
DATE-END= '2022-02-02T21:30:47.23' / [UT] date/time when obs ended
MJD-OBS = 59612.896053241 / [days] modified Julian date
MJD-END = 59612.896377315 / [days] modified Julian date
FILTER = '1074 ' / [nm] prefilter wavelength region identifier
OBJECT = 'SUN ' /
BUNIT = '1.0E-06 B/Bsun' / brightness with respect to solar disk
LEVEL = 'L2 ' / level 2 calibrated
COMMENT --- World Coordinate System (WCS) info ---
COMMENT Ephemeris calculations done by sun.pro
WCSNAME = 'helioprojective-cartesian' / World Coordinate System (WCS) name
CDELT1 = 2.944 / [arcsec/pixel] image X increment = platescale
CDELT2 = 2.944 / [arcsec/pixel] image Y increment = platescale
CRPIX1 = 640.5 / [pixel] occulter X center (index origin=1)
CTYPE1 = 'HPLN-TAN' / helioprojective west angle: solar X
CRVAL1 = 0.00 / [arcsec] occulter X sun center
CUNIT1 = 'arcsec ' / unit of CRVAL1
CRPIX2 = 512.5 / [pixel] occulter Y center (index origin=1)
CTYPE2 = 'HPLT-TAN' / helioprojective north angle: solar Y
CRVAL2 = 0.00 / [arcsec] occulter Y sun center
CUNIT2 = 'arcsec ' / unit of CRVAL2
DSUN_OBS= 147439156995.7 / [m] distance to the Sun from observer
HGLN_OBS= 0.000 / [deg] Stonyhurst heliographic longitude
HGLT_OBS= -6.140 / [deg] Stonyhurst heliographic latitude
PC1_1 = 1.000 / coord transform matrix element (1, 1) WCS std.
PC1_2 = 0.000 / coord transform matrix element (1, 2) WCS std.
PC2_1 = 0.000 / coord transform matrix element (2, 1) WCS std.
PC2_2 = 1.000 / coord transform matrix element (2, 2) WCS std.
COMMENT --- Ephemeris info ---
COMMENT Ephemeris calculations done by sun.pro
SOLAR_P0= -12.914 / [deg] solar P angle applied (image has N up)
SOLAR_B0= -6.140 / [deg] solar B-Angle
SECANT_Z= 1.285349 / secant of the Zenith Distance
SID_TIME= 0.27055 / [day fraction] GMST sidereal time
CAR_ROT = 2253 / Carrington Rotation Number
JUL_DATE= 2459613.396053241 / [days] Julian date
RSUN_OBS= 973.68 / [arcsec] solar radius using ref radius 959.63"
R_SUN = 330.73 / [pixel] solar radius
COMMENT --- Level 1 processing info ---
DOI = 'https://doi.org/10.26024/g8p7-wy42' / Digital Object Identifier
DATE_DP = '2024-06-14T23:27:55' / [UT] L1 processing date/time
DPSWID = '1.0.10-dev [b6afa292*]' / L1 processing software (2024-06-14) [master
LIN_CRCT= F / camera linearity corrected
BOPAL = 14.80 / [B/Bsun] opal radiance
COMMENT --- Level 2 processing info ---
DATE_DP2= '2024-06-15T00:15:52' / [UT] L2 processing date/time
DPSWID2 = '1.0.10-dev [b6afa292*]' / L2 processing software (2024-06-14) [master
D_LAMBDA= 0.110 / [nm] wavelength spacing
HOTPIXC = T / whether hot pixels were corrected
HOTPIXF = 'ucomp_hot_high.sav' / created Mon May 23 13:33:34 2022
DEMODV = 1 / demod coeffs version [2023-05-15T10:07:04Z]
DISTORTC= T / whether distortion corrected
DISTORTF= 'dist_coeff_20210708_1074.sav' / created Fri Jul 30 16:10:59 2021
CONTSUB = T / whether the continuum was subtracted
CAMERAS = 'both ' / cameras used in processing
COMMENT --- Quality metrics ---
VCROSSTK= 2.98450 / Stokes V crosstalk metric
MED_BKG = 23.747 / [ppm] median of line center background annulus
NUMSAT0O= 0 / number of saturated pixels in onband RCAM
NUMSAT1O= 0 / number of saturated pixels in onband TCAM
NUMSAT0C= 0 / number of saturated pixels in bkg RCAM
NUMSAT1C= 0 / number of saturated pixels in bkg TCAM
NUMNL0O = 3901 / number of non-linear pixels in onband RCAM
NUMNL1O = 4307 / number of non-linear pixels in onband TCAM
NUMNL0C = 739 / number of non-linear pixels in bkg RCAM
NUMNL1C = 1451 / number of non-linear pixels in bkg TCAM
COMMENT --- Camera info ---
EXPTIME = 80.000 / [ms] Exposure time
FRAMERT = 10.691 / [Hz] Frequency of images
GAIN = 'high' / Camera gain setting
SAVEALL = F / [TF] Save all frames instead of summing
TCAMID = 'Raptor OWL1280 10055' / Unique ID of the TCAM (Camera 1)
RCAMID = 'Raptor OWL1280 10006' / Unique ID of the RCAM (Camera 0)
TCAMLUT = '' / Unique ID of the LUT for TCAM
RCAMLUT = '' / Unique ID of the LUT for RCAM
TCAMNUC = 'normal' / Camera Correction for TCAM
RCAMNUC = 'normal' / Camera Correction for RCAM
NFRAME = 48 / total number of image frames in file
REMFRAME= 0 / number of bad frames removed
NUMWAVE = 3 / number of wavelengths
NUMSUM = 14 / number of camera reads summed in an image frame
NREPEAT = 1 / number of repeats of wavelength scans
NUMBEAM = 2 / number of beams
COMMENT Total camera reads in this file = NFRAME * NUMSUM where
COMMENT NFRAME = NUMWAVE * NREPEAT * NUMBEAM * 2(Cameras) * 4(Polarizations)
COMMENT --- Observing info ---
OBSERVER= 'Berkey'
OBS_ID = '1074_03wave_2beam_14sums_1_rep_BOTH' / Name of current observation
OBS_IDAU= '' / Author of the observing program
OBS_IDDA= '' / Edit date of the observing program
OBS_IDVE= 'a9097a357eac9b3d9293f2b535ce0890' / [Md5 hash] Observation ver
OBS_PLAN= 'waves_1074_1hour.cbk' / Name of Current program
OBS_PLAU= '' / Author of the program
OBS_PLDA= '' / Edit date of the observing plan
OBS_PLVE= '203a6b3c8f096ac607c26c5ecc4df27c' / [Md5 hash] Program ver
COMMENT --- Hardware settings ---
DARKID = 'DARK SHUT 1' / Dark Shutter ID
O1ID = 'O1#2' / Unique ID of objective lens
DIFFSRID= 'S1B' / Unique ID of diffuser used (change to diffuser
OCCLTRID= '35' / Unique ID of the current occulter
FLCVNEG = -7.000 / [V] Negative FeLC Drive voltage
FLCVPOS = 7.000 / [V] Positive FeLC Drive voltage
POLHOFF = 11021.000 / [counts] Offset in counts for the Cal Pololariz
REDHOFF = 8694.000 / [counts] Offset in counts for the Cal Retarder
T_COMPS = F / [TF] Lyot turning temperature compensation on
WAVOFF = 1.970 / [nm] Tuning offset for Lyot filter
LCVRELX = 0.250 / [s] delay after LCVR tuning before data
FILTFWHM= 0.138 / [nm] Lyot FWHM
CONTOFF = 1.25625 / [nm] continuum offset
COMMENT Continuum can be "red", "blue", or "both": "both" gives equal weight to
COMMENT red and blue sides, "red" samples 90% red contimuum and 10% blue, "blue"
COMMENT samples 90% blue continuum and 10% red; the continuum position is offset
COMMENT from line center by the value of CONTOFF
CONTIN = 'both ' / [both/blue/red] location of continuum
OCCLTR-X= 70.320 / Occulter X position
OCCLTR-Y= 15.400 / Occulter Y position
O1FOCUS = 61.480 / O1 focus position
COMMENT --- Temperatures ---
COMMENT Temperatures used in the Lyot filter calibrations are low-pass
COMMENT filtered and reported in keywords that start with T_. The raw,
COMMENT unfiltered temperature values for recorded temperatures are recorded
COMMENT in keywords that begin with TU_.
T_RACK = 20.291 / [C] Computer Rack Temp
T_LCVR1 = 34.387 / [C] Lyot LCVR1 Temp
T_LCVR2 = 34.332 / [C] Lyot LCVR2 Temp
T_LCVR3 = 34.399 / [C] Lyot LCVR3 Temp
T_LNB1 = 34.388 / [C] LiNb1 Temp
T_MOD = 32.058 / [C] Modulator Temp
T_LNB2 = 34.290 / [C] LiNb2 Temp
T_LCVR4 = 34.258 / [C] Lyot LCVR4 Temp
T_LCVR5 = 34.005 / [C] Lyot LCVR5 Temp
T_BASE = 31.099 / [C] Instrument Baseplate Temp
TU_RACK = 20.768 / [C] Computer Rack Temp Unfiltered
TU_LCVR1= 34.560 / [C] Lyot LCVR1 Temp Unfiltered
TU_LCVR2= 34.495 / [C] Lyot LCVR2 Temp Unfiltered
TU_LCVR3= 34.566 / [C] Lyot LCVR3 Temp Unfiltered
TU_LNB1 = 34.560 / [C] LiNb1 Temp Unfiltered
TU_MOD = 32.156 / [C] Modulator Temp Unfiltered
TU_LNB2 = 34.471 / [C] LiNb2 Temp Unfiltered
TU_LCVR4= 34.449 / [C] Lyot LCVR4 Temp Unfiltered
TU_LCVR5= 34.248 / [C] Lyot LCVR5 Temp Unfiltered
TU_BASE = 31.138 / [C] Instrument Baseplate Temp Unfiltereed
TU_C0ARR= 4.803 / [C] Camera 0 Sensor array temp Unfiltered
TU_C0PCB= 28.500 / [C] Camera 0 PCB board temp Unfiltered
TU_C1ARR= 4.890 / [C] Camera 1 Sensor array temp Unfiltered
TU_C1PCB= 28.000 / [C] Camera 1 PCB board temp Unfiltered
COMMENT --- SGS info ---
SGSSCINT= 3.37967 / [arcsec] SGS scintillation seeing estimate
SGSDIMV = 8.98000 / [V] SGS Dim Mean
SGSDIMS = 0.01581 / [V] SGS Dim Std
SGSSUMV = 8.98067 / [V] SGS Sum Mean
SGSSUMS = 0.01355 / [V] SGS Sum Std
SGSRAV = -0.00030 / [V] SGS RA Mean
SGSRAS = 0.02984 / [V] SGS RA Std
SGSDECV = 0.00003 / [V] SGS DEC Mean
SGSDECS = 0.02274 / [V] SGS DEC Std
SGSLOOP = 1.00000 / SGS Loop Fraction
SGSRAZR = 39.50000 / [V] SGS RA zero point
SGSDECZR= 39.61666 / [V] SGS DEC zero point
COMMENT --- Weather info ---
WNDSPD = 3.000 / [mph] wind speed
WNDDIR = 57.000 / [deg] wind direction
COMMENT --- Occulter centering info ---
COMMENT X/YOFFSET define position w.r.t. distortion corrected L0 images
XOFFSET0= 1.124 / [pixels] RCAM occulter x-offset from CRPIX1
YOFFSET0= -5.696 / [pixels] RCAM occulter y-offset from CRPIX2
RADIUS0 = 343.052 / [pixels] RCAM occulter radius
FITCHI0 = 0.024089 / [pixels] chi-squared for RCAM center fit
XOFFSET1= 2.617 / [pixels] TCAM occulter x-offset from CRPIX1
YOFFSET1= -6.160 / [pixels] TCAM occulter y-offset from CRPIX2
RADIUS1 = 343.353 / [pixels] TCAM occulter radius
FITCHI1 = 0.021076 / [pixels] chi-squared for TCAM center fit
POST_ANG= 193.426 / [deg] post angle CCW from north
RADIUS = 343.203 / [pixels] occulter average radius
IMAGESCL= 2.922192 / [arcsec/pixels] image scale for this file
RCAMECC = 0.0242 / occulter eccentricity in RCAM
TCAMECC = 0.0234 / occulter eccentricity in TCAM
HISTORY
HISTORY Level 1 calibration and processing steps:
HISTORY - quality check to determine if the file should be processed
HISTORY - average level 0 data with same onband and wavelength
HISTORY - apply dark correction
HISTORY - apply gain correction
HISTORY - camera corrections such as hot pixel correction
HISTORY - demodulation
HISTORY - distortion correction
HISTORY - find the occulter position and radius
HISTORY - subtract continuum
HISTORY - remove hoizontal/vertical bands
HISTORY - center images using occulter position and rotate to north up
HISTORY - combine the cameras
HISTORY - polarimetric correction
HISTORY - correct for sky transmission
HISTORY - update FITS keywords
END
Extension: 1
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Center wavelength intensity' / intensity at center tuning wavelength
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
WAVELNG = 1074.700 / [nm] Wavelength of observation
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 177.71 / median DN value of the dark-corrected flat used
CAMCORR = / correlation between camera images
CAMDIFF = / median of absolute difference between camera im
RCAMMED = / median value in test annulus in RCAM
TCAMMED = / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 2
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Enhanced intensity' / unsharp mask of center wavelength intensity
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
WAVELNG = 1074.700 / [nm] Wavelength of observation
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 177.71 / median DN value of the dark-corrected flat used
CAMCORR = / correlation between camera images
CAMDIFF = / median of absolute difference between camera im
RCAMMED = / median value in test annulus in RCAM
TCAMMED = / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 3
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Peak intensity' / peak of Gaussian fit
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
FITMETHD= 'analytic' / Gaussian fit method
SKYTRANS= 1.000 / sky transmission correction normalized to gain
BLUE_REF= 1074.590 / [nm] blue reference wavelength
RED_REF = 1074.810 / [nm] red reference wavelength
END
Extension: 4
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'LOS velocity' / Doppler velocity from Gaussian fit
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
FITMETHD= 'analytic' / Gaussian fit method
RSTWVL = -4.268 / [km/s] median rest wavelength
RSTMTHD = 'image ' / rest wavelength computation method
WAVOFF2 = / [nm] offset for center wavelength
SKYTRANS= 1.000 / sky transmission correction normalized to gain
BLUE_REF= 1074.590 / [nm] blue reference wavelength
RED_REF = 1074.810 / [nm] red reference wavelength
END
Extension: 5
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Line width (FWHM)' / FWHM from Gaussian fit
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
FITMETHD= 'analytic' / Gaussian fit method
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 6
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Noise mask' / mask low signal data
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 7
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Weighted average I' / sum of I at center 3 wavelengths / 2
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 8
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Weighted average Q' / sum of Q at center 3 wavelengths / 2
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 9
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Weighted average U' / sum of U at center 3 wavelengths / 2
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 10
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Weighted average L' / sum of L at center 3 wavelengths / 2
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 11
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Azimuth ' / 0.5 * atan(weighted U / weighted Q)
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END
Extension: 12
XTENSION= 'IMAGE ' / extension type
BITPIX = -32 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 1280 / [pixels] width
NAXIS2 = 1024 / [pixels] height
PCOUNT = 0 /
GCOUNT = 1 /
EXTNAME = 'Radial azimuth' / azimuth with respect to radial direction
INHERIT = T / inherit primary header
DATATYPE= 'science ' / [sci/cal/dark/flat] science or calibration
OBJECT = 'SUN' / Emission Line Corona
RAWFILE = '20220202.213019.14.ucomp.1074.l0.fts' / raw file
FLATDN = 173.39 / median DN value of the dark-corrected flat used
CAMCORR = 0.103 / correlation between camera images
CAMDIFF = 83.915 / median of absolute difference between camera im
RCAMMED = 21.169 / median value in test annulus in RCAM
TCAMMED = 103.593 / median value in test annulus in TCAM
SKYTRANS= 1.000 / sky transmission correction normalized to gain
END \