--- header unit 0: primary ---
SIMPLE = T / Standard FITS
BITPIX = -32 / Floating point (32 bit)
NAXIS = 3
NAXIS1 = 258
NAXIS2 = 1
NAXIS3 = 80
EXTEND = T
BSCALE = 1.000000000000E+00 / PHYSICAL = PIXEL*BSCALE + BZERO
BZERO = 0.000000000000E+00
BMAJ = 2.063885331154E-05
BMIN = 1.467407370607E-05
BPA = 6.250317382812E+01
BTYPE = 'Intensity'
OBJECT = 'TW'
BUNIT = 'JY/BEAM' / Brightness (pixel) unit
PC01_01 = 1.000000000000E+00
PC02_01 = 0.000000000000E+00
PC03_01 = 0.000000000000E+00
PC01_02 = 0.000000000000E+00
PC02_02 = 1.000000000000E+00
PC03_02 = 0.000000000000E+00
PC01_03 = 0.000000000000E+00
PC02_03 = 0.000000000000E+00
PC03_03 = 1.000000000000E+00
CTYPE1 = 'OFFSET'
CRVAL1 = 0.000000000000E+00
CDELT1 = 2.000000000183E-03
CRPIX1 = 1.290000000000E+02
CUNIT1 = 'arcsec'
CTYPE2 = 'STOKES'
CRVAL2 = 1.000000000000E+00
CDELT2 = 1.000000000000E+00
CRPIX2 = 1.000000000000E+00
CUNIT2 = ''
CTYPE3 = 'FREQ'
CRVAL3 = 4.060000000000E+10
CDELT3 = 9.999362196198E+05
CRPIX3 = 1.000000000000E+00
CUNIT3 = 'Hz'
RESTFRQ = 4.063050400000E+10 / Rest Frequency (Hz)
SPECSYS = 'LSRK' / Spectral reference frame
ALTRVAL = 2.250739773947E+05 / Alternate frequency reference value
ALTRPIX = 1.000000000000E+00 / Alternate frequency reference pixel
VELREF = 257 / 1 LSR, 2 HEL, 3 OBS, +256 Radio
COMMENT casacore non-standard usage: 4 LSD, 5 GEO, 6 SOU, 7 GAL
TELESCOP = 'EVLA'
OBSERVER = 'Dr. Keping Qiu'
DATE-OBS = '2012-10-06T02:52:28.000000'
TIMESYS = 'UTC'
OBSRA = 3.676786250000E+01
OBSDEC = 6.187354166667E+01
OBSGEO-X = -1.601156673287E+06
OBSGEO-Y = -5.041988986066E+06
OBSGEO-Z = 3.554879236821E+06
DATE = '2014-07-01T10:53:37.571000' / Date FITS file was written
ORIGIN = 'CASA Viewer / FITS export'