Faint Source Survey Plates information
Table 1. Sample FITS header
SIMPLE = T / STANDARD FITS FORMAT
BITPIX = 16 / 2 BYTE TWOS-COMPL INTEGERS
NAXIS = 3 / NUMBER OF AXES
NAXIS1 = 1584 / NZ = Z GRID DIMENSION
NAXIS2 = 1584 / NY = Y GRID DIMENSION
NAXIS3 = 1 / # WAVELENGTHS
BLOCKED = T / TAPE MAY BE BLOCKED
COMMENT *********************
COMMENT *** FLUX DENSITY **
COMMENT *********************
BSCALE = 1.471550E-03 / TRUE=TAPE*BSCALE + BZERO
BZERO = 0.0
BUNIT = 'JY ' / FLUX DENSITY
BLANK = -32768 / TAPE VALUE FOR EMPTY CELL
CRVAL1 = 2.999998E+01 / RA AT ORIGIN (DEGREES)
CRPIX1 = 793. / Z-AXIS ORIGIN (CELL) = (NZ/2)+1
CTYPE1 = 'RA---SIN' / DECREASES IN VALUE AS SAMPLE INDEX
COMMENT INCREASES (ORTHOGRAPHIC PROJECTION)
CDELT1 = -4.166666E-03 / Z-GRID CELL WIDTH (DEGREES)
CROTA1 = 0.0 / TWIST ANGLE UNDEFINED FOR Z-AXIS
CRVAL2 = -4.999991E+00 / DEC AT ORIGIN (DEGREES)
CRPIX2 = 793. / Y-AXIS ORIGIN (CELL)= (NY/2)+1
CTYPE2 = 'DEC--SIN' / INCREASES IN VALUE AS LINE INDEX
COMMENT INCREASES (ORTHOGRAPHIC PROJECTION)
CDELT2 = 4.166666E-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 = 1.2E-05 / WAVELENGTH IN METERS
CRPIX3 = 1.
CTYPE3 = 'LAMBDA '
CDELT3 = 0.
CROTA3 = 0.
DATAMAX = 1.366922E+01 / JY (TRUE VALUE)
DATAMIN = -2.913668E-01 / JY (TRUE VALUE)
COMMENT NO. OF EMPTY CELLS = 0
NCF = 9.965854E-01 / NOISE CORRECTION FACTOR
EPOCH = 1950. / EME50
DATE-OBS= ' 0/ 0/83' / DATE OF OBSERVATION (DD/MM/YY)
DATE = ' 4/10/88' / DATE THIS TAPE WRITTEN (DD/MM/YY)
ORIGIN = 'IPAC ' / INSTITUTION:INFRARED PROCESSING AND
COMMENT ANALYSIS CENTER;
COMMENT MAIL CODE:100-22 CALTECH
TELESCOP= 'IRAS '
INSTRUME= 'FSS '
COMMENT FSSID = FSPP
FSSPLATE= 757. / FSS PLATE NO.
DATE-CR = '73290756' / FSS PLATE FILE CREATION DATE(YDDDHHMM)
PLTNOISE= 2.943097E-02 / EST. PLATE MEDIAN NOISE (JY)
HISTORY CALFAC USED = 0.995 * 7.418E+12
COMMENT GRID TWIST = 1.800000E+02 (DEG) MEAS-COMMENT URED FROM SOUTH TO +Y, CW IS POSITIVE.
COMMENT GAIN NORM. USED = 1.400000E+00
COMMENT MFILT = 23
COMMENT KFILT = -1
OBJECT = 'MD4F10 ' / PLATE LABEL
COMMENT CMOON= 5.898375E+01 DEG.; MIN. CONE
COMMENT ANGLE OF MOON.
COMMENT CJUP = 1.372079E+02 DEG.; MIN. CONE
COMMENT ANGLE OF JUPITER.
COMMENT CSAT = 1.611698E+02 DEG.; MIN. CONE
COMMENT ANGLE OF SATURN.
COMMENT CMARS= 7.435899E+01 DEG.; MIN. CONE
COMMENT ANGLE OF MARS.
COMMENT
COMMENT MAX/MIN UNCERTAINTIES ON IN-SCAN
COMMENT BORESIGHT POSITION =
COMMENT 5.839935E+01/ 1.968169E+00 ARC SEC.
COMMENT
COMMENT MAX/MIN UNCERTAINTIES ON CROSS-SCAN
COMMENT BORESIGHT POSITION =
COMMENT 2.695137E+01/ 8.007517E+00 ARC SEC.
COMMENT
COMMENT PROGRAM VERSION AND COMPILATION DATE
COMMENT (MM/DD/YY): M-P0.99 11/02/87.
COMMENT NUMBER OF IN-TOLERANCE FRAMES = 8902.
COMMENT REFERENCES:
COMMENT IRAS SDAS SOFTWARE INTERFACE SPECIFICATION(SIS) #623-94/NO. FS01
COMMENT EXPLANATORY SUPPLEMENT TO THE IRAS FAINT SOURCE SURVEY (NOV.1988)
COMMENT ASTRON. ASTROPHYS. SUPPL. SER. 44,(1981) 363-370(RE:FITS)
END
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