--- header unit 0: primary ---
SIMPLE = T / conforms to FITS standard
BITPIX = 8 / array data type
NAXIS = 0 / number of array dimensions
EXTEND = T
CHECKSUM = 'A8bIB5Z9A5bGA5Z9' / HDU checksum updated 2026-03-05T11:08:38
DATASUM = '0' / data unit checksum updated 2026-03-05T11:08:38
--- 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 = 8684094 / 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(13903)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(47)' / 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 = 0.50623367875927 / Coordinate transformation matrix element
PC1_2 = 0.86239634883843 / Coordinate transformation matrix element
PC2_1 = -0.86239634883843 / Coordinate transformation matrix element
PC2_2 = 0.50623367875927 / 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 = 22.5247631073 / [deg] Coordinate value at reference point
CRVAL2 = 0.028661575168371 / [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 = 0.028661575168371 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-20 23:14:03'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20171221004
FIELD = 'dex-fall'
OBJID = 'DEX00060_1_000_W'
DATE = 20171221
OBSID = 4
RA = 22.430469
DEC = 0.00149
PA = 208.863281
N_IFU = 28
FWHM = 3.2
FWHM_ERR = 0.0
RESPONSE = 0.1258
RELFLUX1 = 1.1535157
RELFLUX2 = 1.0163512
RELFLUX3 = 0.8225588
AMBTEMP = 11.52
DATEVOBS = '20171221v004'
DEWPOINT = -8.875
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 487.45007
EXPTIME2 = 486.79816
EXPTIME3 = 487.249
HUMIDITY = 21.552
MJD1 = 58108.15
MJD2 = 58108.156
MJD3 = 58108.16
OBSIND = 1
PRESSURE = 800.81305
STRUCTAZ = 212.24072
TIME = '0334267'
TRAJCDEC = 0.0
TRAJCPA = 207.30974
TRAJCRA = 22.42995
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'DATA' / extension name
CHECKSUM = '5pBG6m9E5mAE5m9E' / HDU checksum updated 2026-03-05T11:08:39
DATASUM = '3803675915' / data unit checksum updated 2026-03-05T11:08:39
ZHECKSUM = 'ZAAia75gVAAgZ75g' / HDU checksum updated 2026-03-05T11:08:39
ZDATASUM = '2357781248' / data unit checksum updated 2026-03-05T11:08:39
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 = 8831303 / 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(16138)' / data format of field: variable length array
TTYPE2 = 'GZIP_COMPRESSED_DATA' / label for field 2
TFORM2 = '1PB(47)' / 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 = 0.50623367875927 / Coordinate transformation matrix element
PC1_2 = 0.86239634883843 / Coordinate transformation matrix element
PC2_1 = -0.86239634883843 / Coordinate transformation matrix element
PC2_2 = 0.50623367875927 / 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 = 22.5247631073 / [deg] Coordinate value at reference point
CRVAL2 = 0.028661575168371 / [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 = 0.028661575168371 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-20 23:14:03'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20171221004
FIELD = 'dex-fall'
OBJID = 'DEX00060_1_000_W'
DATE = 20171221
OBSID = 4
RA = 22.430469
DEC = 0.00149
PA = 208.863281
N_IFU = 28
FWHM = 3.2
FWHM_ERR = 0.0
RESPONSE = 0.1258
RELFLUX1 = 1.1535157
RELFLUX2 = 1.0163512
RELFLUX3 = 0.8225588
AMBTEMP = 11.52
DATEVOBS = '20171221v004'
DEWPOINT = -8.875
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 487.45007
EXPTIME2 = 486.79816
EXPTIME3 = 487.249
HUMIDITY = 21.552
MJD1 = 58108.15
MJD2 = 58108.156
MJD3 = 58108.16
OBSIND = 1
PRESSURE = 800.81305
STRUCTAZ = 212.24072
TIME = '0334267'
TRAJCDEC = 0.0
TRAJCPA = 207.30974
TRAJCRA = 22.42995
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'ERROR' / extension name
CHECKSUM = '1a7a4V7V1Z7Z1Z7Z' / HDU checksum updated 2026-03-05T11:08:40
DATASUM = '613724969' / data unit checksum updated 2026-03-05T11:08:40
ZHECKSUM = 'GHNGGHMEGHMEGHME' / HDU checksum updated 2026-03-05T11:08:40
ZDATASUM = '1564501535' / data unit checksum updated 2026-03-05T11:08:40
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 = 556443 / 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(5362)' / 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 = 0.50623367875927 / Coordinate transformation matrix element
PC1_2 = 0.86239634883843 / Coordinate transformation matrix element
PC2_1 = -0.86239634883843 / Coordinate transformation matrix element
PC2_2 = 0.50623367875927 / 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 = 22.5247631073 / [deg] Coordinate value at reference point
CRVAL2 = 0.028661575168371 / [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 = 0.028661575168371 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-20 23:14:03'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20171221004
FIELD = 'dex-fall'
OBJID = 'DEX00060_1_000_W'
DATE = 20171221
OBSID = 4
RA = 22.430469
DEC = 0.00149
PA = 208.863281
N_IFU = 28
FWHM = 3.2
FWHM_ERR = 0.0
RESPONSE = 0.1258
RELFLUX1 = 1.1535157
RELFLUX2 = 1.0163512
RELFLUX3 = 0.8225588
AMBTEMP = 11.52
DATEVOBS = '20171221v004'
DEWPOINT = -8.875
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 487.45007
EXPTIME2 = 486.79816
EXPTIME3 = 487.249
HUMIDITY = 21.552
MJD1 = 58108.15
MJD2 = 58108.156
MJD3 = 58108.16
OBSIND = 1
PRESSURE = 800.81305
STRUCTAZ = 212.24072
TIME = '0334267'
TRAJCDEC = 0.0
TRAJCPA = 207.30974
TRAJCRA = 22.42995
SPECBW = 2.0
EXTNAME = 'MASK' / extension name
CHECKSUM = '94FgC1Ff91FfA1Ff' / HDU checksum updated 2026-03-05T11:08:40
DATASUM = '2741670988' / data unit checksum updated 2026-03-05T11:08:40
ZHECKSUM = '6mfH7mc96mcE6mc9' / HDU checksum updated 2026-03-05T11:08:40
ZDATASUM = '2280281574' / data unit checksum updated 2026-03-05T11:08:40