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Table 1 shows the header of the HRS3_N4565_20 image, the intensity map at 60 microns of NGC 4565 after 20 MCM iterations.

 

Table 1. Sample FITS header
 


SIMPLE  =                    T          /  FITS STANDARD
BITPIX  =                   16          /  FITS BITS/PIXEL
NAXIS   =                    3          /  NUMBER OF AXES
NAXIS1  =                  241          /
NAXIS2  =                  241          /
NAXIS3  =                    1          /
BSCALE  =      3.7850475948E-4          /  REAL = TAPE*BSCALE + BZERO
BZERO   =       1.2402453789E1          /
OBJECT  = 'N4565   '                    /
ORIGIN  = 'KPNO-IRAF'                   /
DATE    = '24-09-91'                    /
IRAFNAME= 'IM300.imh'                   /  NAME OF IRAF IMAGE FILE
IRAF-MAX=           2.480491E1          /  DATA MAX
IRAF-MIN=          7.329056E-7          /  DATA MIN
IRAF-B/P=                   32          /  DATA BITS/PIXEL
IRAFTYPE= 'FLOATING'                    /
BLOCKED =                    T          / BLOCKING FACTOR IS ALTERABLE
BUNIT   = 'MJY/SR '                     / INTENSITY UNITS
CRVAL1  =            188.46500          / RA AT ORIGIN(DEGREES)
CRPIX1  =                 121.          / Z-AXIS ORIGIN (CELL) = (NZ/2)+1
CTYPE1  = 'RA---SIN'                    / DECREASES IN VALUE AS SAMPLE INDEX
COMMENT                                   INCREASES  (ORTHOGRAPHIC PROJECTION)
CDELT1  =        -4.166667E-03          / Z-GRID CELL WIDTH (DEGREES)
CROTA1  =                  0.0          / TWIST ANGLE UNDEFINED FOR Z-AXIS
CRVAL2  =             26.26000          / DEC AT ORIGIN (DEGREES)
CRPIX2  =                 121.          / Y-AXIS ORIGIN (CELL)= (NY/2)+1
CTYPE2  = 'DEC--SIN'                    / INCREASES IN VALUE AS LINE INDEX
COMMENT                                   INCREASES  (ORTHOGRAPHIC PROJECTION)
CDELT2  =         4.166667E-03          / Y-GRID CELL WIDTH (DEGREES)
CROTA2  =                  0.0          / ROTATES +NAXIS2 INTO +DEC AXIS (ANGLE
COMMENT                                   MEASURED POSITIVE CCW FROM +NAXIS2 TO
COMMENT                                   +DEC)  (DEGREES)
CRVAL3  =              6.0E-05          / WAVELENGTH IN METERS
CRPIX3  =                   1.
CTYPE3  = 'LAMBDA  '
CDELT3  =                   0.
CROTA3  =                   0.
DATAMAX =         2.480490E+01          / MJY/SR  (TRUE VALUE)
DATAMIN =         7.329056E-07          / MJY/SR  (TRUE VALUE)
SIGMA   =         1.715000E-01          / MEDIAN DETECTOR NOISE  IN MJY/SR
EPOCH   =                1950.          / EME50
LNDRDAT = '10/25/90   '                 / DATE RAW DATA WAS LAUNDRED (MM/DD/YY)
ITERNO  =                   20          / NUMBER OF ITERATIONS COMPLETED
BIAS    =                  0.0          / MEDIAN PIXEL FLUX SUBTRACTED IN MJY/SR
VERSION = '1.0A 900925'                 / VERSION OF YORIC
DESTRIPE=                    1          / OFFSET REMOVAL METHOD USED
COMMENT     DESTRIPE STATUS WORD IS TAKEN FROM FIRST INPUT OBSERVATION FILE ONLY
COMMENT     (SEE YORIC SDS AND NEXT HEADER LINE)
DESDIFF =                    T          / FLAG TO INDICATE THAT DESTRIPE VALUE
COMMENT     WAS THE SAME IN ALL INPUT OBSERVATION FILE HEADERS
HISTORY '10/25/90'                      / DATE THIS OBJECT PROCESSED (MM/DD/YY)
END
 

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This page last updated: Wednesday, July 23, 2008 .