--- header unit 0: primary ---
SIMPLE = T / conforms to FITS standard
BITPIX = 8 / array data type
NAXIS = 0 / number of array dimensions
EXTEND = T
CHECKSUM = 'A6cEC3Z9A3bCA3Z9' / HDU checksum updated 2026-03-05T17:19:19
DATASUM = '0' / data unit checksum updated 2026-03-05T17:19:19
--- 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 = 8781210 / 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 = -0.9581506965152 / Coordinate transformation matrix element
PC1_2 = -0.28626428832015 / Coordinate transformation matrix element
PC2_1 = 0.28626428832015 / Coordinate transformation matrix element
PC2_2 = -0.9581506965152 / 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 = 190.80383300781 / [deg] Coordinate value at reference point
CRVAL2 = 51.466999053955 / [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 = 51.466999053955 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 11:58:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20200325021
FIELD = 'dex-spring'
OBJID = 'DEXsp0374'
DATE = 20200325
OBSID = 21
RA = 191.000492
DEC = 51.405086
PA = 71.815564
N_IFU = 68
FWHM = 2.0157034
FWHM_ERR = 0.4322211
RESPONSE = 0.1111
RELFLUX1 = 1.0789019
RELFLUX2 = 0.9683988
RELFLUX3 = 0.92880356
AMBTEMP = 17.162222
DATEVOBS = '20200325v021'
DEWPOINT = -9.018333
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0206
EXPTIME2 = 367.99716
EXPTIME3 = 368.1492
HUMIDITY = 13.481
MJD1 = 58933.215
MJD2 = 58933.22
MJD3 = 58933.227
OBSIND = 1
PRESSURE = 803.72534
STRUCTAZ = 44.148373
TIME = '0510203'
TRAJCDEC = 51.404804
TRAJCPA = 70.38209
TRAJCRA = 191.0005
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'DATA' / extension name
CHECKSUM = 'UA9Pa28NW98Na98N' / HDU checksum updated 2026-03-05T17:19:20
DATASUM = '2935557040' / data unit checksum updated 2026-03-05T17:19:20
ZHECKSUM = 'SRAaTR0USR7ZSR7Z' / HDU checksum updated 2026-03-05T17:19:20
ZDATASUM = '1924631362' / data unit checksum updated 2026-03-05T17:19:20
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 = 9294200 / 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(17404)' / 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 = -0.9581506965152 / Coordinate transformation matrix element
PC1_2 = -0.28626428832015 / Coordinate transformation matrix element
PC2_1 = 0.28626428832015 / Coordinate transformation matrix element
PC2_2 = -0.9581506965152 / 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 = 190.80383300781 / [deg] Coordinate value at reference point
CRVAL2 = 51.466999053955 / [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 = 51.466999053955 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 11:58:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20200325021
FIELD = 'dex-spring'
OBJID = 'DEXsp0374'
DATE = 20200325
OBSID = 21
RA = 191.000492
DEC = 51.405086
PA = 71.815564
N_IFU = 68
FWHM = 2.0157034
FWHM_ERR = 0.4322211
RESPONSE = 0.1111
RELFLUX1 = 1.0789019
RELFLUX2 = 0.9683988
RELFLUX3 = 0.92880356
AMBTEMP = 17.162222
DATEVOBS = '20200325v021'
DEWPOINT = -9.018333
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0206
EXPTIME2 = 367.99716
EXPTIME3 = 368.1492
HUMIDITY = 13.481
MJD1 = 58933.215
MJD2 = 58933.22
MJD3 = 58933.227
OBSIND = 1
PRESSURE = 803.72534
STRUCTAZ = 44.148373
TIME = '0510203'
TRAJCDEC = 51.404804
TRAJCPA = 70.38209
TRAJCRA = 191.0005
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'ERROR' / extension name
CHECKSUM = 'GNJVGMISGMISGMIS' / HDU checksum updated 2026-03-05T17:19:21
DATASUM = '290999723' / data unit checksum updated 2026-03-05T17:19:21
ZHECKSUM = 'YiSFafS9TfSCYfS9' / HDU checksum updated 2026-03-05T17:19:20
ZDATASUM = '525134578' / data unit checksum updated 2026-03-05T17:19:20
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 = 651060 / 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(7827)' / 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 = -0.9581506965152 / Coordinate transformation matrix element
PC1_2 = -0.28626428832015 / Coordinate transformation matrix element
PC2_1 = 0.28626428832015 / Coordinate transformation matrix element
PC2_2 = -0.9581506965152 / 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 = 190.80383300781 / [deg] Coordinate value at reference point
CRVAL2 = 51.466999053955 / [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 = 51.466999053955 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-21 11:58:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20200325021
FIELD = 'dex-spring'
OBJID = 'DEXsp0374'
DATE = 20200325
OBSID = 21
RA = 191.000492
DEC = 51.405086
PA = 71.815564
N_IFU = 68
FWHM = 2.0157034
FWHM_ERR = 0.4322211
RESPONSE = 0.1111
RELFLUX1 = 1.0789019
RELFLUX2 = 0.9683988
RELFLUX3 = 0.92880356
AMBTEMP = 17.162222
DATEVOBS = '20200325v021'
DEWPOINT = -9.018333
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0206
EXPTIME2 = 367.99716
EXPTIME3 = 368.1492
HUMIDITY = 13.481
MJD1 = 58933.215
MJD2 = 58933.22
MJD3 = 58933.227
OBSIND = 1
PRESSURE = 803.72534
STRUCTAZ = 44.148373
TIME = '0510203'
TRAJCDEC = 51.404804
TRAJCPA = 70.38209
TRAJCRA = 191.0005
SPECBW = 2.0
EXTNAME = 'MASK' / extension name
CHECKSUM = '1Apm31nl18nl18nl' / HDU checksum updated 2026-03-05T17:19:21
DATASUM = '2155819122' / data unit checksum updated 2026-03-05T17:19:21
ZHECKSUM = 'DADnE99kDAAkD99k' / HDU checksum updated 2026-03-05T17:19:21
ZDATASUM = '2124615125' / data unit checksum updated 2026-03-05T17:19:21