FITS Headers
act_dr4.01_s13_D5_pa1_f150_nohwp_night_3pass_4way_set0_xlink.fits
Primary Header
SIMPLE = T / conforms to FITS standard
BITPIX = -32 / array data type
NAXIS = 3 / number of array dimensions
NAXIS1 = 3913
NAXIS2 = 1672
NAXIS3 = 3
CRPIX1 = 1957.5 / Pixel coordinate of reference point
CRPIX2 = 861.0 / Pixel coordinate of reference point
CRPIX3 = 1.0 / Pixel coordinate of reference point, Stokes T
CDELT1 = -0.00833333333333 / [deg] Coordinate increment at reference point
CDELT2 = 0.00833333333333 / [deg] Coordinate increment at reference point
CDELT3 = 1.0 / Stokes component increment
CUNIT1 = 'deg' / Units of coordinate increment and value
CUNIT2 = 'deg' / Units of coordinate increment and value
CUNIT3 = ''
CTYPE1 = 'RA---CAR' / Right ascension, plate caree projection
CTYPE2 = 'DEC--CAR' / Declination, plate caree projection
CTYPE3 = 'STOKES ' / I,Q,U Stokes components
CRVAL1 = -2.85416666667 / [deg] Coordinate value at reference point
CRVAL2 = 0.0 / [deg] Coordinate value at reference point
CRVAL3 = 1.0 / Coordinate value at reference point, Stokes T
LONPOLE = 0.0 / [deg] Native longitude of celestial pole
LATPOLE = 90.0 / [deg] Native latitude of celestial pole
RADESYS = 'ICRS' / Equatorial coordinate system
COMMENT
COMMENT *** ACT dataset keys ***
COMMENT
TELESCOP= 'act '
INSTRUME= 'actpol '
RELEASE = 'dr4.01 ' / Data release tag
SEASON = 's13 ' / Observation season
PATCH = 'D5 ' / Survey patch
ARRAY = 'pa1 ' / Telescope array
FREQ = 'f150 ' / Frequency tag
COMMENT
COMMENT *** ACT product keys ***
COMMENT
POLCCONV= 'IAU ' / Polarization convention
BUNIT = 'uK^-2 ' / Physical (pixel) units
EXTNAME = 'XLINK-MAP' / Extension name
FILENAME= 'act_dr4.01_s13_D5_pa1_f150_nohwp_night_3pass_4way_set0_xlink.fits' /
CHECKSUM= 'SICrTI9oSICoSI9o' / HDU checksum updated 2020-06-30T08:11:20
DATASUM = '1163761855' / data unit checksum updated 2020-06-30T08:11:20
END