FITS Headers
act_dr4.01_s13_D5_pa1_f150_nohwp_night_3pass_4way_set3_map_srcfree.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 ' / Physical (pixel) units EXTNAME = 'FREQ-MAP' / Extension name FILENAME= 'act_dr4.01_s13_D5_pa1_f150_nohwp_night_3pass_4way_set3_map_srcfree.&' CONTINUE 'fits&' CONTINUE '' / FITS filename CHECKSUM= '9RVY9OUY9OUY9OUY' / HDU checksum updated 2020-06-30T07:37:59 DATASUM = '460849314' / data unit checksum updated 2020-06-30T07:37:59 END
