--- header unit 0: primary ---
SIMPLE = T / Written by IDL: Tue Sep 28 16:51:18 2021
BITPIX = 16 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 1024 / length of data axis 1
NAXIS2 = 1024 / length of data axis 2
COMMENT ------------------------------------------------------------------------
FILENAME = 'swap_lv1_20210927_171100.fits' / FITS filename
FILE_TMR = 'swap_06154173707881_be44e060.fits' / SWTMR filename
FILE_RAW = 'BINSWAP202109271711140002840663PROCESSED' / raw telemetry filename
FILE_TAR = 'BINSWAP_38839_SVA1_2021.09.28T16.31.38.tar' / raw telemetry package
COMMENT ------------------------------------------------------------------------
DATE = '2021-09-28T16:51:18' / UTC time of FITS file creation
DATE-OBS = '2021-09-27T17:11:00.442' / UTC time of observation
COMMENT ------------------------------------------------------------------------
LEVEL = 1 / data processing level
CREATOR = 'P2SW_PREP.PRO v1.5' / FITS creation software
ORIGIN = 'ROB' / Royal Observatory of Belgium
TELESCOP = 'PROBA2' / satellite name
INSTRUME = 'SWAP' / instrument name
OBJECT = 'Sun EUV' / object observed
FILTER = 'Al' / Aluminum filter
DETECTOR = 'SWAP' / HAS CMOS detector 1024x1024 pixels
WAVELNTH = 174 / [Angstrom] bandpass peak response
COMMENT ------------------------------------------------------------------------
OBS_MODE = 'Variable off-pointing' / sun_cen, fix_off, var_off, cme_track
CAP_MODE = 'CDS' / (DS,CDS) capture mode
EXPTIME = 10.0000 / [s] commanded exposure time
BSCALE = 0.00625000 / ratio of physical to array value at 0 offset
BZERO = 204.800 / physical value for the array value 0
BUNIT = 'DN/s' / unit of physical value
DATAMIN = 0.00000 / minimum valid physical value
DATAMAX = 348.763 / maximum valid physical value
SWAVINT = 13.6236 / [DN/s/pixel] avg intensity in calibrated image
COMMENT ------------------------------------------------------------------------
FIRSTROW = 1 / first read-out detector row
LAST_ROW = 1024 / last read-out detector row
FIRSTCOL = 1 / first read-out detector column
LAST_COL = 1024 / last read-out detector column
REBIN = 'off' / on-board rebin (2x2 pixel average)
COMMENT ------------------------------------------------------------------------
WCSNAME = 'Helioprojective-cartesian' / aligned with solar North
CTYPE1 = 'HPLN-TAN' / WCS axis X
CTYPE2 = 'HPLT-TAN' / WCS axis Y
CUNIT1 = 'arcsec' / WCS axis X units
CUNIT2 = 'arcsec' / WCS axis Y units
CD1_1 = 3.16469410000 / WCS coordinate description matrix
CD1_2 = 0.00000000000 / WCS coordinate description matrix
CD2_1 = 0.00000000000 / WCS coordinate description matrix
CD2_2 = 3.16469410000 / WCS coordinate description matrix
CDELT1 = 3.16469410000 / [arcsec] average pixel scale along axis 1
CDELT2 = 3.16469410000 / [arcsec] average pixel scale along axis 2
CRVAL1 = 0.00000 / [arcsec] reference point WCS axis X
CRVAL2 = 0.00000 / [arcsec] reference point WCS axis Y
CRPIX1 = 512.500 / [pixel] reference point axis 1
CRPIX2 = 512.500 / [pixel] reference point axis 2
LONPOLE = 180.000 / [deg] native longitude of the celestial pole
CROTA1 = 0.00000 / [deg] axis 1 to WCS rotation angle
CROTA2 = 0.00000 / [deg] axis 2 to WCS rotation angle
SWXCEN = 501.660 / [pixel] axis 1 location of solar center in lv0
SWYCEN = 503.340 / [pixel] axis 2 location of solar center in lv0
COMMENT ------------------------------------------------------------------------
DTPLAR1 = 2000.00 / [s] predicted time to prev large angle rotation
DTPLAR2 = 91.0000 / [s] predicted time to next large angle rotation
P2_X0 = 0.00665949982440 / [deg] s/c yaw
P2_Y0 = 0.000901537034737 / [deg] s/c pitch
P2_ROLL = 359.986470059 / [deg] s/c roll
SOLAR_EP = 357.655854260 / [deg] s/c ecliptic North to solar North angle
HGLT_OBS = 6.86588974550 / [deg] s/c heliographic latitude
HGLN_OBS = -0.00232964212189 / [deg] s/c heliographic longitude
RSUN_ARC = 957.535976762 / [arcsec] photospheric solar radius
DSUN_OBS = 149925723272. / [m] s/c distance from Sun
HEEX_OBS = 149925723105. / [m] s/c Heliocentric Earth Ecliptic X
HEEY_OBS = -6196800.30134 / [m] s/c Heliocentric Earth Ecliptic Y
HEEZ_OBS = 3405887.59746 / [m] s/c Heliocentric Earth Ecliptic Z
GSEX_OBS = -474785.715419 / [m] s/c Geocentric Solar Ecliptic X
GSEY_OBS = 6196800.30133 / [m] s/c Geocentric Solar Ecliptic Y
GSEZ_OBS = 3405887.59746 / [m] s/c Geocentric Solar Ecliptic Z
LOS_ALT = 692469.103389 / [m] s/c LOS altitude (1000000=no atmosphere)
TRAPPROT = 0.00000 / [ct/cm^2/s] AP-8 MAX > 10MeV @ 725km model
TRAPELEC = 0.00000 / [ct/cm^2/s] AE-8 MAX > 1MeV @ 725km model
GEOD_ALT = 709078.600993 / [m] s/c WGS84 altitude
GEOD_LAT = 5.57706034141 / [deg] s/c sub-point geodetic latitude
GEOD_LON = 13.6339869871 / [deg] s/c sub-point longitude
COMMENT ------------------------------------------------------------------------
TEMP1DET = 0.629998779297 / [Celsius] detector temperature (SW HK T CF)
TEMP2DET = 0.629998779297 / [Celsius] detector temperature (SW HK T CF)
TTEMP1 = '2021-09-27T17:10:41.000' / UTC time of detector temp 1st sample
TTEMP2 = '2021-09-27T17:11:10.000' / UTC time of detector temp 2nd sample
TEMPDARK = 0.629998779297 / [Celsius] temperature used in dark subtraction
COMMENT ------------------------------------------------------------------------
IS_PROC = 1 / on-board image processing
TRANTIME = 6154173707881 / [ct] OBET transferring time
SACQTIME = 6154173479498 / [ct] OBET start acquisition time
EACQTIME = 6154173707881 / [ct] OBET end acquisition time
LANG_ROT = 0.00000 / commanded large angle rotation component
PAV_ROT0 = 0.00000 / commanded paving rotation component 0
PAV_ROT1 = 0.00000 / commanded paving rotation component 1
HASSTDBY = 0 / HAS detector standby mode
READRDIV = 0 / read-out rate divider
PGA_OFFS = 59 / PGA offset
PGA_GAIN = 1 / PGA gain
LED_POW = 'off' / calibration LED power
LED_SEL = 'a' / calibration LED selection
HASBLACK = 4 / HAS detector black level
HASOFFST = 11 / HAS detector offset level
ARTEFX = 'on' / (off,on,cosmic rays) on-board artefact removal
RECODING = 'fixed' / (off,fixed,adaptive) on-board recoding
RECNUM = 3600 / recoding upper limit
RECBIAS = 10 / recoding lower limit
COMPRESS = 'jpeg' / (off,lzw,jpeg) on-board compression algorithm
LZWDECOR = 'off' / LZW decorrelation
PN = 130 / on-board priority number
SIZCOMPI = 727824 / size of on-board compressed image
NPRESCR = 0 / # preserved pixels - cosmic rays
NPRESLZW = 0 / # preserved pixels - LZW decorrelation
COMMENT ------------------------------------------------------------------------
COMMENT The SWAP instrument is described in the papers referenced at
COMMENT http://adsabs.harvard.edu/abs/2013SoPh..286...43S and
COMMENT http://adsabs.harvard.edu/abs/2013SoPh..286...67H
COMMENT The latest information on SWAP is available at http://proba2.oma.be
COMMENT -----------------------------------------------------------------------
COMMENT $Id: swap_fits_template 5242 2016-02-17 12:34:09Z bogdan $
CHECKSUM = 'cFNSdEKQcEKQcEKQ' / HDU checksum updated 2021-09-28T16:51:19
DATASUM = '278605783' / data unit checksum updated 2021-09-28T16:51:19
COMMENT ------------------------------------------------------------------------
HISTORY SWTMR 152633
HISTORY SWEDG 152638
HISTORY FITSHEAD2STRUCT run at: Tue Sep 28 16:51:11 2021
HISTORY p2sw_hdrchk v1.5 Computed detector temp.: 0.62999878 Celsius
HISTORY p2sw_pmcdiv v1.5 Reverted wrt swap_pmc_20100308_164500.fits
HISTORY p2sw_pixrep v1.5 Replaced wrt swap_satcds_20100113_152800.fits
HISTORY p2sw_drksub v1.5 Subtracted modeled dark with coefficients in
HISTORY p2sw_drksub v1.5 swap_dark_coefs_20160101_000000.save using
HISTORY p2sw_drksub v1.5 T=273.78 K, dt=10.0000 s
HISTORY p2sw_pmcrep v1.5 Reverted wrt swap_pmc_20100308_164500.fits
HISTORY p2sw_ffcorr v1.5 Flat-field: swap_flatcds_20100101_000000.fits
HISTORY p2sw_despike v1.5 Despiked at the 6.0-sigma level (31511 pix)
HISTORY p2sw_imgcor v1.5 Image centred on solar disk centre
HISTORY p2sw_imgcor v1.5 Image scaled to square pixels
HISTORY p2sw_imgcor v1.5 Image rotated to Solar North up
HISTORY p2sw_expnorm v1.5 Exposure time normalized data (DN/s)
COMMENT ------------------------------------------------------------------------
COMMENT This is a level-1 SWAP FITS file produced by p2sw_prep v1.5 at the Royal
COMMENT Observatory of Belgium. If you have difficulty with this file or wish
COMMENT to make suggestions for improvements, please contact the SWAP
COMMENT Instrument Team via email at swap_lyra@oma.be.
COMMENT ------------------------------------------------------------------------