--- header unit 0: primary ---
SIMPLE = T / conforms to FITS standard
BITPIX = 8 / array data type
NAXIS = 0 / number of array dimensions
EXTEND = T
CHECKSUM = 'B5eHB5Z9B5bEB5Z9' / HDU checksum updated 2026-03-05T20:46:18
DATASUM = '0' / data unit checksum updated 2026-03-05T20:46:18
--- header unit 1: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / array data type
NAXIS = 2 / number of array dimensions
NAXIS1 = 32 / width of table in bytes
NAXIS2 = 1040 / number of rows in table
PCOUNT = 8799319 / number of group parameters
GCOUNT = 1 / number of groups
TFIELDS = 4 / number of fields in each row
TTYPE1 = 'COMPRESSED_DATA' / label for field 1
TFORM1 = '1PB(13911)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(82)' / data format of field: variable length array
TTYPE3 = 'ZSCALE' / label for field 3
TFORM3 = '1D' / data format of field: 8-byte DOUBLE
TTYPE4 = 'ZZERO' / label for field 4
TFORM4 = '1D' / data format of field: 8-byte DOUBLE
ZIMAGE = T / extension contains compressed image
ZTENSION = 'IMAGE' / Image extension
ZBITPIX = -32 / array data type
ZNAXIS = 3 / number of array dimensions
ZNAXIS1 = 104
ZNAXIS2 = 104
ZNAXIS3 = 1036
ZPCOUNT = 0 / number of parameters
ZGCOUNT = 1 / number of groups
ZTILE1 = 32 / size of tiles to be compressed
ZTILE2 = 32 / size of tiles to be compressed
ZTILE3 = 16 / size of tiles to be compressed
ZCMPTYPE = 'RICE_1' / compression algorithm
ZNAME1 = 'BLOCKSIZE' / compression block size
ZVAL1 = 32 / pixels per block
ZNAME2 = 'BYTEPIX' / bytes per pixel (1, 2, 4, or 8)
ZVAL2 = 4 / bytes per pixel (1, 2, 4, or 8)
ZNAME3 = 'NOISEBIT' / floating point quantization level
ZVAL3 = 16.0 / floating point quantization level
ZQUANTIZ = 'NO_DITHER' / No dithering during quantization
WCSAXES = 3 / Number of coordinate axes
CRPIX1 = 52.5 / Pixel coordinate of reference point
CRPIX2 = 52.5 / Pixel coordinate of reference point
CRPIX3 = 1.0 / Pixel coordinate of reference point
PC1_1 = -0.96124885492515 / Coordinate transformation matrix element
PC1_2 = -0.27568213381553 / Coordinate transformation matrix element
PC2_1 = 0.27568213381553 / Coordinate transformation matrix element
PC2_2 = -0.96124885492515 / Coordinate transformation matrix element
CDELT1 = -0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT2 = 0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT3 = 2.0 / [m] Coordinate increment at reference point
CUNIT1 = 'deg' / Units of coordinate increment and value
CUNIT2 = 'deg' / Units of coordinate increment and value
CUNIT3 = 'Angstrom' / Units of coordinate increment and value
CTYPE1 = 'RA---TAN' / Right ascension, gnomonic projection
CTYPE2 = 'DEC--TAN' / Declination, gnomonic projection
CTYPE3 = 'WAVE' / Vacuum wavelength (linear)
CRVAL1 = 226.46940612793 / [deg] Coordinate value at reference point
CRVAL2 = 50.188041687012 / [deg] Coordinate value at reference point
CRVAL3 = 3470.0 / [m] Coordinate value at reference point
LONPOLE = 180.0 / [deg] Native longitude of celestial pole
LATPOLE = 50.188041687012 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 22:08:26'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220429010
FIELD = 'dex-spring'
OBJID = 'DEXsp3669'
DATE = 20220429
OBSID = 10
RA = 226.429103
DEC = 50.223396
PA = 72.447331
N_IFU = 76
FWHM = 1.5931525
FWHM_ERR = 0.25684544
RESPONSE = 0.1485
RELFLUX1 = 0.90687245
RELFLUX2 = 1.0098407
RELFLUX3 = 0.980177
AMBTEMP = 21.287777
DATEVOBS = '20220429v010'
DEWPOINT = -11.382222
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 367.57773
EXPTIME2 = 368.3644
EXPTIME3 = 367.5992
HUMIDITY = 8.5936
MJD1 = 59698.2
MJD2 = 59698.203
MJD3 = 59698.207
OBSIND = 1
PRESSURE = 798.7474
STRUCTAZ = 44.575207
TIME = '0444429'
TRAJCDEC = 50.22396
TRAJCPA = 70.83046
TRAJCRA = 226.42804
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'DATA' / extension name
CHECKSUM = 'ZGMjaDMjTDMjZDMj' / HDU checksum updated 2026-03-05T20:46:19
DATASUM = '4211863629' / data unit checksum updated 2026-03-05T20:46:19
ZHECKSUM = '0ZWA1YT70YTA0YT7' / HDU checksum updated 2026-03-05T20:46:19
ZDATASUM = '4112444635' / data unit checksum updated 2026-03-05T20:46:19
HISTORY BUNIT updated: flux per pixel (removed arcsec^-2).
--- header unit 2: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / array data type
NAXIS = 2 / number of array dimensions
NAXIS1 = 32 / width of table in bytes
NAXIS2 = 1040 / number of rows in table
PCOUNT = 9505863 / number of group parameters
GCOUNT = 1 / number of groups
TFIELDS = 4 / number of fields in each row
TTYPE1 = 'COMPRESSED_DATA' / label for field 1
TFORM1 = '1PB(18704)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(82)' / data format of field: variable length array
TTYPE3 = 'ZSCALE' / label for field 3
TFORM3 = '1D' / data format of field: 8-byte DOUBLE
TTYPE4 = 'ZZERO' / label for field 4
TFORM4 = '1D' / data format of field: 8-byte DOUBLE
ZIMAGE = T / extension contains compressed image
ZTENSION = 'IMAGE' / Image extension
ZBITPIX = -32 / array data type
ZNAXIS = 3 / number of array dimensions
ZNAXIS1 = 104
ZNAXIS2 = 104
ZNAXIS3 = 1036
ZPCOUNT = 0 / number of parameters
ZGCOUNT = 1 / number of groups
ZTILE1 = 32 / size of tiles to be compressed
ZTILE2 = 32 / size of tiles to be compressed
ZTILE3 = 16 / size of tiles to be compressed
ZCMPTYPE = 'RICE_1' / compression algorithm
ZNAME1 = 'BLOCKSIZE' / compression block size
ZVAL1 = 32 / pixels per block
ZNAME2 = 'BYTEPIX' / bytes per pixel (1, 2, 4, or 8)
ZVAL2 = 4 / bytes per pixel (1, 2, 4, or 8)
ZNAME3 = 'NOISEBIT' / floating point quantization level
ZVAL3 = 16.0 / floating point quantization level
ZQUANTIZ = 'NO_DITHER' / No dithering during quantization
WCSAXES = 3 / Number of coordinate axes
CRPIX1 = 52.5 / Pixel coordinate of reference point
CRPIX2 = 52.5 / Pixel coordinate of reference point
CRPIX3 = 1.0 / Pixel coordinate of reference point
PC1_1 = -0.96124885492515 / Coordinate transformation matrix element
PC1_2 = -0.27568213381553 / Coordinate transformation matrix element
PC2_1 = 0.27568213381553 / Coordinate transformation matrix element
PC2_2 = -0.96124885492515 / Coordinate transformation matrix element
CDELT1 = -0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT2 = 0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT3 = 2.0 / [m] Coordinate increment at reference point
CUNIT1 = 'deg' / Units of coordinate increment and value
CUNIT2 = 'deg' / Units of coordinate increment and value
CUNIT3 = 'Angstrom' / Units of coordinate increment and value
CTYPE1 = 'RA---TAN' / Right ascension, gnomonic projection
CTYPE2 = 'DEC--TAN' / Declination, gnomonic projection
CTYPE3 = 'WAVE' / Vacuum wavelength (linear)
CRVAL1 = 226.46940612793 / [deg] Coordinate value at reference point
CRVAL2 = 50.188041687012 / [deg] Coordinate value at reference point
CRVAL3 = 3470.0 / [m] Coordinate value at reference point
LONPOLE = 180.0 / [deg] Native longitude of celestial pole
LATPOLE = 50.188041687012 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 22:08:26'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220429010
FIELD = 'dex-spring'
OBJID = 'DEXsp3669'
DATE = 20220429
OBSID = 10
RA = 226.429103
DEC = 50.223396
PA = 72.447331
N_IFU = 76
FWHM = 1.5931525
FWHM_ERR = 0.25684544
RESPONSE = 0.1485
RELFLUX1 = 0.90687245
RELFLUX2 = 1.0098407
RELFLUX3 = 0.980177
AMBTEMP = 21.287777
DATEVOBS = '20220429v010'
DEWPOINT = -11.382222
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 367.57773
EXPTIME2 = 368.3644
EXPTIME3 = 367.5992
HUMIDITY = 8.5936
MJD1 = 59698.2
MJD2 = 59698.203
MJD3 = 59698.207
OBSIND = 1
PRESSURE = 798.7474
STRUCTAZ = 44.575207
TIME = '0444429'
TRAJCDEC = 50.22396
TRAJCPA = 70.83046
TRAJCRA = 226.42804
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'ERROR' / extension name
CHECKSUM = 'ZELAe9I2ZCI8d9I8' / HDU checksum updated 2026-03-05T20:46:20
DATASUM = '3694999657' / data unit checksum updated 2026-03-05T20:46:20
ZHECKSUM = 'SfMaVeLWSeLaSeLW' / HDU checksum updated 2026-03-05T20:46:20
ZDATASUM = '3242222872' / data unit checksum updated 2026-03-05T20:46:20
HISTORY BUNIT updated: flux per pixel (removed arcsec^-2).
--- header unit 3: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / array data type
NAXIS = 2 / number of array dimensions
NAXIS1 = 8 / width of table in bytes
NAXIS2 = 1040 / number of rows in table
PCOUNT = 349644 / number of group parameters
GCOUNT = 1 / number of groups
TFIELDS = 1 / number of fields in each row
BSCALE = 1
BZERO = 32768
TTYPE1 = 'COMPRESSED_DATA' / label for field 1
TFORM1 = '1PB(4815)' / data format of field: variable length array
ZIMAGE = T / extension contains compressed image
ZTENSION = 'IMAGE' / Image extension
ZBITPIX = 16 / array data type
ZNAXIS = 3 / number of array dimensions
ZNAXIS1 = 104
ZNAXIS2 = 104
ZNAXIS3 = 1036
ZPCOUNT = 0 / number of parameters
ZGCOUNT = 1 / number of groups
ZTILE1 = 32 / size of tiles to be compressed
ZTILE2 = 32 / size of tiles to be compressed
ZTILE3 = 16 / size of tiles to be compressed
ZCMPTYPE = 'RICE_1' / compression algorithm
ZNAME1 = 'BLOCKSIZE' / compression block size
ZVAL1 = 32 / pixels per block
ZNAME2 = 'BYTEPIX' / bytes per pixel (1, 2, 4, or 8)
ZVAL2 = 2 / bytes per pixel (1, 2, 4, or 8)
WCSAXES = 3 / Number of coordinate axes
CRPIX1 = 52.5 / Pixel coordinate of reference point
CRPIX2 = 52.5 / Pixel coordinate of reference point
CRPIX3 = 1.0 / Pixel coordinate of reference point
PC1_1 = -0.96124885492515 / Coordinate transformation matrix element
PC1_2 = -0.27568213381553 / Coordinate transformation matrix element
PC2_1 = 0.27568213381553 / Coordinate transformation matrix element
PC2_2 = -0.96124885492515 / Coordinate transformation matrix element
CDELT1 = -0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT2 = 0.00013888888888889 / [deg] Coordinate increment at reference point
CDELT3 = 2.0 / [m] Coordinate increment at reference point
CUNIT1 = 'deg' / Units of coordinate increment and value
CUNIT2 = 'deg' / Units of coordinate increment and value
CUNIT3 = 'Angstrom' / Units of coordinate increment and value
CTYPE1 = 'RA---TAN' / Right ascension, gnomonic projection
CTYPE2 = 'DEC--TAN' / Declination, gnomonic projection
CTYPE3 = 'WAVE' / Vacuum wavelength (linear)
CRVAL1 = 226.46940612793 / [deg] Coordinate value at reference point
CRVAL2 = 50.188041687012 / [deg] Coordinate value at reference point
CRVAL3 = 3470.0 / [m] Coordinate value at reference point
LONPOLE = 180.0 / [deg] Native longitude of celestial pole
LATPOLE = 50.188041687012 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 22:08:26'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220429010
FIELD = 'dex-spring'
OBJID = 'DEXsp3669'
DATE = 20220429
OBSID = 10
RA = 226.429103
DEC = 50.223396
PA = 72.447331
N_IFU = 76
FWHM = 1.5931525
FWHM_ERR = 0.25684544
RESPONSE = 0.1485
RELFLUX1 = 0.90687245
RELFLUX2 = 1.0098407
RELFLUX3 = 0.980177
AMBTEMP = 21.287777
DATEVOBS = '20220429v010'
DEWPOINT = -11.382222
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 367.57773
EXPTIME2 = 368.3644
EXPTIME3 = 367.5992
HUMIDITY = 8.5936
MJD1 = 59698.2
MJD2 = 59698.203
MJD3 = 59698.207
OBSIND = 1
PRESSURE = 798.7474
STRUCTAZ = 44.575207
TIME = '0444429'
TRAJCDEC = 50.22396
TRAJCPA = 70.83046
TRAJCRA = 226.42804
SPECBW = 2.0
EXTNAME = 'MASK' / extension name
CHECKSUM = 'WnNEakLEWkLEakLE' / HDU checksum updated 2026-03-05T20:46:22
DATASUM = '3123468033' / data unit checksum updated 2026-03-05T20:46:22
ZHECKSUM = '8emF8cjD8cjD8cjD' / HDU checksum updated 2026-03-05T20:46:22
ZDATASUM = '2193856526' / data unit checksum updated 2026-03-05T20:46:22