 
# description of the chip metadata
BLANK METADATA
  COMMENT  STR
  COMMENT  STR  Combination (P4S, P4D, Image Stack/ Cumulative Sky) Image
  COMMENT  STR  Metadata HDU
  COMMENT  STR  
  OBS_ID   STR  UnknownFormat       # Observation Identifier
  CLASSID  S32                    0 # Class ID = focal plane location
  DETECTID S32                    0 # Numerical ID of detector
  NX       S32                 4800 # Number of columns on the detector
  NY       S32                 4800 # Number of rows on the detector   DATE    STR 2006/02/05
  COMMENT  STR
  COMMENT  STR  Astrometric Solution (up to linear terms)
  COMMENT  STR
  NASTRO   S32                  100 # Number of astrometry stars
  CERROR   F32               10.000 # Scatter in astrometry solution (MAS)
  CTYPE1   STR  RA---TAN            # WCS Coordinate type
  CTYPE2   STR  DEC--TAN            # WCS Coordinate type
  CRVAL1   F32      321.30941666667 # WCS Ref value (RA in decimal degrees)
  CRVAL2   F32     -5.1685277777778 # WCS Ref value (DEC in decimal degrees)
  CRPIX1   F32    -1051.17692913657 # WCS Coordinate reference pixel
  CRPIX2   F32     2033.40939404705 # WCS Coordinate reference pixel
  CD1_1    F32  1.13378419402790E-4 # WCS Coordinate scale matrix
  CD1_2    F32  8.93919113249280E-8 # WCS Coordinate scale matrix
  CD2_1    F32  -5.4105516940550E-7 # WCS Coordinate scale matrix
  CD2_2    F32  -1.1365323690945E-4 # WCS Coordinate scale matrix
  COMMENT  STR
  COMMENT  STR  Higher order terms in astrometric solution
  COMMENT  STR
  POLYORD  S32                    3 # Polynomial Order
  PCA1X3Y0 F32                  0.0 # WCS, Axis 1, coefficient of X^3
  PCA1X2Y1 F32                  0.0 # WCS, Axis 1, coefficient of X^2 * Y
  PCA1X1Y2 F32                  0.0 # WCS, Axis 1, coefficient of X * Y^2
  PCA1X0Y3 F32                  0.0 # WCS, Axis 1, coefficient of Y^3
  PCA1X2Y0 F32                  0.0 # WCS, Axis 1, coefficient of X^2
  PCA1X1Y1 F32                  0.0 # WCS, Axis 1, coefficient of X * Y
  PCA1X0Y2 F32                  0.0 # WCS, Axis 1, coefficient of Y^2
  PCA1X3Y0 F32                  0.0 # WCS, Axis 2, coefficient of X^3
  PCA1X2Y1 F32                  0.0 # WCS, Axis 2, coefficient of X^2 * Y
  PCA1X1Y2 F32                  0.0 # WCS, Axis 2, coefficient of X * Y^2
  PCA1X0Y3 F32                  0.0 # WCS, Axis 2, coefficient of Y^3
  PCA1X2Y0 F32                  0.0 # WCS, Axis 2, coefficient of X^2
  PCA1X1Y1 F32                  0.0 # WCS, Axis 2, coefficient of X * Y
  PCA1X0Y2 F32                  0.0 # WCS, Axis 2, coefficient of Y^2
  COMMENT  STR
  COMMENT  STR  PSF Description Parameters
  COMMENT  STR
  PSFMOD   S32                    1 # PSF Model number
  PSFFWHM  F32                  1.0 # PSF Full width at Half Maximum (pixels)
  PSFWIDX  F32                  1.0 # PSF Width in X coordinate (pixels)
  PSFWIDY  F32                  1.0 # PSF Width in Y coordinate (pixels)
  PSFTHETA F32                  0.0 # PSF Orientation angle (degrees)
  PSF_EX1  F32                  0.0 # PSF Extra parameter #1
  PSF_EX2  F32                  0.0 # PSF Extra parameter #2
  COMMENT  STR
  COMMENT  STR  Photometry Calibration information
  COMMENT  STR
  COMMENT  STR   Formula for Photometry, based on keywords given in this header:
  COMMENT  STR   m = -2.5*log(DN) + 2.5*log(EXPTIME)
  COMMENT  STR   M = m + PHOT_C + PHOT_K*(AIRMASS - 1) + PHOT_X*(PHOT_C1 - PHOT_C2)
  COMMENT  STR
  PHOTCODE STR  GPC.00.r            # Photometry reduction code identifier
  PHOTOCID S32                      # Numerical code for reduction code
  PHOT_C   F32              25.7150 # Elixir zero point - measured for camera run
  PHOT_CS  F32               0.0048 # Elixir zero point - scatter
  PHOT_NS  S32                   19 # Elixir zero point - N stars
  PHOT_NM  S32                    5 # Elixir zero point - N images
  PHOT_C0  F32              25.7430 # Elixir zero point - nominal
  PHOT_X   F32               0.0830 # Elixir zero point - color term
  PHOT_K   F32              -0.0400 # Elixir zero point - airmass term
  PHOT_C1  STR  i_SDSS              # Elixir zero point - color 1
  PHOT_C2  STR  r_SDSS              # Elixir zero point - color 2
  COMMENT  STR
  COMMENT  STR  Some statistics on this image
  COMMENT  STR
  NDETECT  S32                 1000 # Number of detections
  MAGSAT   F32                15.0  # Magnitude at which sources saturate
  MAGCOMP  F32                22.0  # Magnitude for which frame is 95% complete
  SKYVAL   F32              1000.0  # Median sky value on detector
  SKYVAR   F32                 1.0  # Variance of sky values
  BIASVAL  F32               200.0  # Mean bias level of frame
  BIASVAR  F32                 1.0  # Variance of bias values
  COMMENT  STR
  COMMENT  STR  Images used to process this exposure
  COMMENT  STR 
  DETREND1 STR  bias.00.fits        # 
  DETREND2 STR  dark.00.fits        # 
  DETREND3 STR  flat.00.fits        # 
  DETREND4 STR  fringe.01.fits      # 
  DETREND5 STR  none                # 
  DETREND6 STR  none                # 
  DETREND7 STR  none                # 
  DETREND8 STR  none                # 
  COMMENT  STR
  COMMENT  STR  Quality Assurance Flags from IPP
  COMMENT  STR
  QAFLAGS  STR  UnknownValue        # IP QA flags
END
