--- header unit 0: primary ---
SIMPLE = T / conforms to FITS standard
BITPIX = 8 / array data type
NAXIS = 0 / number of array dimensions
EXTEND = T
CHECKSUM = 'A8dID5Z9A5bGA5Z9' / HDU checksum updated 2026-03-05T20:43:55
DATASUM = '0' / data unit checksum updated 2026-03-05T20:43:55
--- 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 = 6790093 / 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(13908)' / 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 = 0.45089400715209 / Coordinate transformation matrix element
PC1_2 = 0.89257750045267 / Coordinate transformation matrix element
PC2_1 = -0.89257750045267 / Coordinate transformation matrix element
PC2_2 = 0.45089400715209 / 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 = 23.513772964478 / [deg] Coordinate value at reference point
CRVAL2 = -0.90296429395676 / [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 = -0.90296429395676 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:53:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220906028
FIELD = 'dex-fall'
OBJID = 'DEXfl0213'
DATE = 20220906
OBSID = 28
RA = 23.498213
DEC = -0.972207
PA = 205.251057
N_IFU = 73
FWHM = 1.576448
FWHM_ERR = 0.18384446
RESPONSE = 0.1332
RELFLUX1 = 0.943239
RELFLUX2 = 1.0522636
RELFLUX3 = 0.95284015
AMBTEMP = 16.65
DATEVOBS = '20220906v028'
DEWPOINT = 7.4566665
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0493
EXPTIME2 = 367.4501
EXPTIME3 = 367.5998
HUMIDITY = 51.444
MJD1 = 59828.43
MJD2 = 59828.434
MJD3 = 59828.44
OBSIND = 1
PRESSURE = 808.297
STRUCTAZ = 207.93388
TIME = '1019490'
TRAJCDEC = -0.971814
TRAJCPA = 203.76193
TRAJCRA = 23.49879
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'DATA' / extension name
CHECKSUM = 'ZAo6d5n6ZAn6d3n6' / HDU checksum updated 2026-03-05T20:43:56
DATASUM = '4145575473' / data unit checksum updated 2026-03-05T20:43:56
ZHECKSUM = 'N7FaP59UN5EaN59U' / HDU checksum updated 2026-03-05T20:43:56
ZDATASUM = '3350173655' / data unit checksum updated 2026-03-05T20:43:56
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 = 7516410 / 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(18465)' / 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 = 0.45089400715209 / Coordinate transformation matrix element
PC1_2 = 0.89257750045267 / Coordinate transformation matrix element
PC2_1 = -0.89257750045267 / Coordinate transformation matrix element
PC2_2 = 0.45089400715209 / 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 = 23.513772964478 / [deg] Coordinate value at reference point
CRVAL2 = -0.90296429395676 / [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 = -0.90296429395676 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:53:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220906028
FIELD = 'dex-fall'
OBJID = 'DEXfl0213'
DATE = 20220906
OBSID = 28
RA = 23.498213
DEC = -0.972207
PA = 205.251057
N_IFU = 73
FWHM = 1.576448
FWHM_ERR = 0.18384446
RESPONSE = 0.1332
RELFLUX1 = 0.943239
RELFLUX2 = 1.0522636
RELFLUX3 = 0.95284015
AMBTEMP = 16.65
DATEVOBS = '20220906v028'
DEWPOINT = 7.4566665
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0493
EXPTIME2 = 367.4501
EXPTIME3 = 367.5998
HUMIDITY = 51.444
MJD1 = 59828.43
MJD2 = 59828.434
MJD3 = 59828.44
OBSIND = 1
PRESSURE = 808.297
STRUCTAZ = 207.93388
TIME = '1019490'
TRAJCDEC = -0.971814
TRAJCPA = 203.76193
TRAJCRA = 23.49879
BUNIT = '1e-17 erg s^-1 cm^-2'
SPECBW = 2.0
EXTNAME = 'ERROR' / extension name
CHECKSUM = '3VKHAUHH6UHHAUHH' / HDU checksum updated 2026-03-05T20:43:57
DATASUM = '3571716699' / data unit checksum updated 2026-03-05T20:43:57
ZHECKSUM = 'Ze7Yab5YUb5YZb5Y' / HDU checksum updated 2026-03-05T20:43:57
ZDATASUM = '265913974' / data unit checksum updated 2026-03-05T20:43:57
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 = 1135407 / 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(8995)' / 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 = 0.45089400715209 / Coordinate transformation matrix element
PC1_2 = 0.89257750045267 / Coordinate transformation matrix element
PC2_1 = -0.89257750045267 / Coordinate transformation matrix element
PC2_2 = 0.45089400715209 / 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 = 23.513772964478 / [deg] Coordinate value at reference point
CRVAL2 = -0.90296429395676 / [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 = -0.90296429395676 / [deg] Native latitude of celestial pole
MJDREF = 0.0 / [d] MJD of fiducial time
RADESYS = 'ICRS' / Equatorial coordinate system
FILETIME = '2025-08-22 00:53:01'
SURVEY = 'hdr5'
MASK = 'True'
CONVOLVE = 'False'
INTERP = 'linear'
FFSKY = 'False'
FFSKYRC = 'False'
SHOTID = 20220906028
FIELD = 'dex-fall'
OBJID = 'DEXfl0213'
DATE = 20220906
OBSID = 28
RA = 23.498213
DEC = -0.972207
PA = 205.251057
N_IFU = 73
FWHM = 1.576448
FWHM_ERR = 0.18384446
RESPONSE = 0.1332
RELFLUX1 = 0.943239
RELFLUX2 = 1.0522636
RELFLUX3 = 0.95284015
AMBTEMP = 16.65
DATEVOBS = '20220906v028'
DEWPOINT = 7.4566665
EXPNUM1 = 1
EXPNUM2 = 2
EXPNUM3 = 3
EXPTIME1 = 368.0493
EXPTIME2 = 367.4501
EXPTIME3 = 367.5998
HUMIDITY = 51.444
MJD1 = 59828.43
MJD2 = 59828.434
MJD3 = 59828.44
OBSIND = 1
PRESSURE = 808.297
STRUCTAZ = 207.93388
TIME = '1019490'
TRAJCDEC = -0.971814
TRAJCPA = 203.76193
TRAJCRA = 23.49879
SPECBW = 2.0
EXTNAME = 'MASK' / extension name
CHECKSUM = 'YOmeaOjbYOjbaOjb' / HDU checksum updated 2026-03-05T20:43:57
DATASUM = '1537333201' / data unit checksum updated 2026-03-05T20:43:57
ZHECKSUM = 'UeDNae9LWeALae9L' / HDU checksum updated 2026-03-05T20:43:57
ZDATASUM = '2964887278' / data unit checksum updated 2026-03-05T20:43:57