--- header unit 0: primary ---
SIMPLE = T / conforms to FITS standard
BITPIX = 8 / array data type
NAXIS = 0 / number of array dimensions
EXTEND = T
CHECKSUM = 'A6cGA5Z9A5aGA5Y9' / HDU checksum updated 2026-03-05T20:56:56
DATASUM = '0' / data unit checksum updated 2026-03-05T20:56:56
--- 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 = 8764981 / 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(13906)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(37)' / 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 = -0.45917171978724 / Coordinate transformation matrix element
PC1_2 = 0.88834752870013 / Coordinate transformation matrix element
PC2_1 = -0.88834752870013 / Coordinate transformation matrix element
PC2_2 = -0.45917171978724 / 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 = 12.331043243408 / [deg] Coordinate value at reference point
CRVAL2 = 1.1072727441788 / [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 = 1.1072727441788 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:34:32'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20221025004
FIELD = 'dex-fall'
OBJID = 'DEXfl1158'
DATE = 20221025
OBSID = 4
RA = 12.24986
DEC = 1.110201
PA = 151.116327
N_IFU = 75
FWHM = 2.677013
FWHM_ERR = 0.29734537
RESPONSE = 0.1758
RELFLUX1 = 0.7373941
RELFLUX2 = 1.026003
RELFLUX3 = 1.2206231
AMBTEMP = 4.4522223
DATEVOBS = '20221025v004'
DEWPOINT = -7.516111
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 548.1231
EXPTIME2 = 546.77527
EXPTIME3 = 547.97595
HUMIDITY = 39.403
MJD1 = 59877.156
MJD2 = 59877.164
MJD3 = 59877.17
OBSIND = 1
PRESSURE = 803.28516
STRUCTAZ = 144.07243
TIME = '0347255'
TRAJCDEC = 1.110817
TRAJCPA = 149.68756
TRAJCRA = 12.250335
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'DATA' / extension name
CHECKSUM = 'aa4IcX1Iaa1IaU1I' / HDU checksum updated 2026-03-05T20:56:57
DATASUM = '2495739606' / data unit checksum updated 2026-03-05T20:56:57
ZHECKSUM = 'WQJaaOGYWOGaaOGW' / HDU checksum updated 2026-03-05T20:56:57
ZDATASUM = '4050545798' / data unit checksum updated 2026-03-05T20:56:57
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 = 8700399 / 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(15040)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(37)' / 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 = -0.45917171978724 / Coordinate transformation matrix element
PC1_2 = 0.88834752870013 / Coordinate transformation matrix element
PC2_1 = -0.88834752870013 / Coordinate transformation matrix element
PC2_2 = -0.45917171978724 / 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 = 12.331043243408 / [deg] Coordinate value at reference point
CRVAL2 = 1.1072727441788 / [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 = 1.1072727441788 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:34:32'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20221025004
FIELD = 'dex-fall'
OBJID = 'DEXfl1158'
DATE = 20221025
OBSID = 4
RA = 12.24986
DEC = 1.110201
PA = 151.116327
N_IFU = 75
FWHM = 2.677013
FWHM_ERR = 0.29734537
RESPONSE = 0.1758
RELFLUX1 = 0.7373941
RELFLUX2 = 1.026003
RELFLUX3 = 1.2206231
AMBTEMP = 4.4522223
DATEVOBS = '20221025v004'
DEWPOINT = -7.516111
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 548.1231
EXPTIME2 = 546.77527
EXPTIME3 = 547.97595
HUMIDITY = 39.403
MJD1 = 59877.156
MJD2 = 59877.164
MJD3 = 59877.17
OBSIND = 1
PRESSURE = 803.28516
STRUCTAZ = 144.07243
TIME = '0347255'
TRAJCDEC = 1.110817
TRAJCPA = 149.68756
TRAJCRA = 12.250335
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'ERROR' / extension name
CHECKSUM = '4MLY7JJV4JJV4JJV' / HDU checksum updated 2026-03-05T20:56:59
DATASUM = '172150546' / data unit checksum updated 2026-03-05T20:56:59
ZHECKSUM = '0DXW1DXW0DXW0DXW' / HDU checksum updated 2026-03-05T20:56:59
ZDATASUM = '423196422' / data unit checksum updated 2026-03-05T20:56:59
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 = 843293 / 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(6781)' / 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 = -0.45917171978724 / Coordinate transformation matrix element
PC1_2 = 0.88834752870013 / Coordinate transformation matrix element
PC2_1 = -0.88834752870013 / Coordinate transformation matrix element
PC2_2 = -0.45917171978724 / 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 = 12.331043243408 / [deg] Coordinate value at reference point
CRVAL2 = 1.1072727441788 / [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 = 1.1072727441788 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:34:32'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20221025004
FIELD = 'dex-fall'
OBJID = 'DEXfl1158'
DATE = 20221025
OBSID = 4
RA = 12.24986
DEC = 1.110201
PA = 151.116327
N_IFU = 75
FWHM = 2.677013
FWHM_ERR = 0.29734537
RESPONSE = 0.1758
RELFLUX1 = 0.7373941
RELFLUX2 = 1.026003
RELFLUX3 = 1.2206231
AMBTEMP = 4.4522223
DATEVOBS = '20221025v004'
DEWPOINT = -7.516111
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 548.1231
EXPTIME2 = 546.77527
EXPTIME3 = 547.97595
HUMIDITY = 39.403
MJD1 = 59877.156
MJD2 = 59877.164
MJD3 = 59877.17
OBSIND = 1
PRESSURE = 803.28516
STRUCTAZ = 144.07243
TIME = '0347255'
TRAJCDEC = 1.110817
TRAJCPA = 149.68756
TRAJCRA = 12.250335
SPECBW = 2.0
EXTNAME = 'MASK' / extension name
CHECKSUM = '0k9a3j8X0j8a0j8U' / HDU checksum updated 2026-03-05T20:56:59
DATASUM = '1722395960' / data unit checksum updated 2026-03-05T20:56:59
ZHECKSUM = 'nkgWoigTnigTnigT' / HDU checksum updated 2026-03-05T20:56:59
ZDATASUM = '1073106585' / data unit checksum updated 2026-03-05T20:56:59