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header.txt
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header.txt
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TELESCOP= CHASE-HIS / Telescop Name
BIN = 2 / Binning mode
DATE_OBS= '2022-01-20T06:08:39' / Observation time
CRPIX1 = 1170.30139160 / X coordinate of solar center in pixel
CUNIT1 = ' arcsec ' / unit of x-axis
CDELT1 = 1.0436 / Pixel spatial resolution along x-axis
CRVAL1 = 0.00000000 / E-W arcsec of solar center
CRPIX2 = 1237.35974121 / Y coordinate of solar center in pixel
CUNIT2 = ' arcsec ' / unit of y-axis
CDELT2 = 1.0436 / Pixel spatial resolution along y-axis
CRVAL2 = 0.00000000 / N-S arcsec of solar center
CRPIX3 = 0.00000000 / Reference pixel at the wavelength dimension
CUNIT3 = ' angstrom ' / unit of z-axis
CDELT3 = 0.0484 / Angstrom per pixel
CRVAL3 = 6559.58 / Wavelength at the reference pixel
BZERO = 0 / Data is Unsigned Integer
BSCALE = 1 / deafult scaling factor
STEPTIME= 0.01 / One-step scanning duration,unit(s)
PRODATE = '2022-03-31T19:40:12' / File creation date
STR_TIME= '2022-01-20T06:08:16' / scanning start time
END_TIME= '2022-01-20T06:09:02' / scanning end time
EXP_TIME= 0.005 / Exposure time for raster scanning,unit(s)
FRM_NUM = 1~2313 / Frame number of a scanning series
SPECLINE= HA / Spectral line
WAVE_LEN= 6562.82 / Wavelength of Ha line core
SAT_POS1= 2413.951 / Satellite x-position in J2000 coordinate system
SAT_POS2= 397.631 / Satellite y-position in J2000 coordinate system
SAT_POS3= -6441.249 / Satellite z-position in J2000 coordinate system
SAT_VEL1= -6.085816 / Satellite x-velocity in J2000 coordinate system
SAT_VEL2= -3.799173 / Satellite y-velocity in J2000 coordinate system
SAT_VEL3= -2.509373 / Satellite z-velocity in J2000 coordinate system
INST_ROT= 342.6234/ Angle of Solar North wrt CMOS y-axis.
R_SUN = 933.8009643555 / Radius of the Sun in pixels on the CCD
RSUN_OBS= 971.1529541016 / Apparent solar radius seen by CHASE
RSUN_REF= 964.19059 / Reference solar radius in arcsecs
B0 = 0.0000/ latitude of point at disk center.
OBS_MOD = RSM/ Raster scanning mode
LVL_NUM = 1/ Data processing level
Spectral curvature corrected
Dark subtracted
Flat-field corrected
Processed by RSM_prep
END