
XTENSION= 'IMAGE'               /
BITPIX  =                    8  /
NAXIS   =                    0  /
COMMENT
COMMENT  Calibration information for this sky cell
COMMENT
SKYCELL =                       / Sky Cell ID number
REFID   =                       / Reference Sky Cell ID number
SUBTRID =                       / ID of Sky Cell Image subtracted 
FILTER  =                       / Filter 
STACKID =                       / ID for this image stack
NP2IMGS =                       / Number of P2 images contributing
ANALVER =                       / Software Analysis Version
COMMENT
COMMENT  Astrometric Solution (up to linear terms)
COMMENT
NASTRO  =                 NNNN  / Number of astrometry stars
CERROR  =              XXX.YYY  / Scatter in astrometry solution (MAS)
CTYPE1  = 'RA---TAN'            / WCS Coordinate type
CTYPE2  = 'DEC--TAN'            / WCS Coordinate type
CRVAL1  =      321.30941666667  / WCS Ref value (RA in decimal degrees)
CRVAL2  =     -5.1685277777778  / WCS Ref value (DEC in decimal degrees)
CRPIX1  =    -1051.17692913657  / WCS Coordinate reference pixel
CRPIX2  =     2033.40939404705  / WCS Coordinate reference pixel
CD1_1   =  1.13378419402790E-4  / WCS Coordinate scale matrix
CD1_2   =  8.93919113249280E-8  / WCS Coordinate scale matrix
CD2_1   =  -5.4105516940550E-7  / WCS Coordinate scale matrix
CD2_2   =  -1.1365323690945E-4  / WCS Coordinate scale matrix
COMMENT
COMMENT  Higher order terms in astrometric solution
COMMENT
POLYORD =                    3  / Polynomial Order
PCA1X3Y0=                       / WCS, Axis 1, coefficient of X^3
PCA1X2Y1=                       / WCS, Axis 1, coefficient of X^2 * Y
PCA1X1Y2=                       / WCS, Axis 1, coefficient of X * Y^2
PCA1X0Y3=                       / WCS, Axis 1, coefficient of Y^3
PCA1X2Y0=                       / WCS, Axis 1, coefficient of X^2
PCA1X1Y1=                       / WCS, Axis 1, coefficient of X * Y
PCA1X0Y2=                       / WCS, Axis 1, coefficient of Y^2
PCA1X3Y0=                       / WCS, Axis 2, coefficient of X^3
PCA1X2Y1=                       / WCS, Axis 2, coefficient of X^2 * Y
PCA1X1Y2=                       / WCS, Axis 2, coefficient of X * Y^2
PCA1X0Y3=                       / WCS, Axis 2, coefficient of Y^3
PCA1X2Y0=                       / WCS, Axis 2, coefficient of X^2
PCA1X1Y1=                       / WCS, Axis 2, coefficient of X * Y
PCA1X0Y2=                       / WCS, Axis 2, coefficient of Y^2
COMMENT
COMMENT  PSF Description Parameters
COMMENT
PSFMOD  =                       / PSF Model number
PSFFWHM =                       / PSF Full width at Half Maximum (pixels)
PSFWIDX =                       / PSF Width in X coordinate (pixels)
PSFWIDY =                       / PSF Width in Y coordinate (pixels)
PSFTHETA=                       / PSF Orientation angle (degrees)
PSF_EX1 =                       / PSF Extra parameter #1
PSF_EX2 =                       / PSF Extra parameter #2
COMMENT
COMMENT  Photometry Calibration information
COMMENT
COMMENT   Formula for Photometry, based on keywords given in this header:
COMMENT   m = -2.5*log(DN) + 2.5*log(EXPTIME)
COMMENT   M = m + PHOT_C + PHOT_K*(AIRMASS - 1) + PHOT_X*(PHOT_C1 - PHOT_C2)
COMMENT
PHOTCODE=                      / Photometry reduction code identifier
PHOTOCID=                      / Numerical code for reduction code
PHOT_C  =              25.7150 / Elixir zero point - measured for camera run
PHOT_CS =               0.0048 / Elixir zero point - scatter
PHOT_NS =                   19 / Elixir zero point - N stars
PHOT_NM =                    5 / Elixir zero point - N images
PHOT_C0 =              25.7430 / Elixir zero point - nominal
PHOT_X  =               0.0830 / Elixir zero point - color term
PHOT_K  =              -0.0400 / Elixir zero point - airmass term
PHOT_C1 = 'i_SDSS            ' / Elixir zero point - color 1
PHOT_C2 = 'r_SDSS            ' / Elixir zero point - color 2
COMMENT
COMMENT  Some statistics on this image
COMMENT
NDETECT =                      / Number of detections
MAGSAT  =                      / Magnitude at which sources saturate
MAGCOMP =                      / Magnitude for which frame is 95% complete
SKYVAL  =                      / Median sky value on detector
SKYVAR  =                      / Variance of sky values
BIASVAL =                      / Mean bias level of frame
BIASVAR =                      / Variance of bias values
COMMENT
COMMENT  P2 images used to generate this image stack
COMMENT 
COMMENT
COMMENT  Quality Assurance Flags from IPP
COMMENT
QAFLAGS = '                  ' / IP QA flags
END
