STRUCT       Measure
EXTNAME      DVO_MEASURE
TYPE         BINTABLE
SIZE         96
DESCRIPTION  DVO Detection Measurement Table 

FIELD dR,             D_RA,         float,          RA offset,                	  arcsec
FIELD dD,             D_DEC,        float,          DEC offset,               	  arcsec
FIELD M,              MAG,          float,          catalog mag,       	       	  mag
FIELD Mcal,           Mcal,         float,          image cal mag,	          mag
FIELD Mgal,           Mgal,         float,          galaxy mag,			  mag
FIELD dM,             dM,           float,          mag error,                    mag
FIELD airmass,        airmass,      float,          (airmass - 1),		  airmass
FIELD dt,             dt,           float,          exposure time,                2.5*log(exptime)

FIELD t,              t,            unsigned int,   time in seconds (UNIX)
FIELD averef,         averef,       unsigned int,   reference to average entry      

FIELD FWx,            FWx,          short,          object fwhm major axis,       1/100 of arcsec 
FIELD FWy,            FWy,          short,          object fwhm minor axis,       1/100 of arcsec 
FIELD theta,          theta,        short,          angle wrt ccd X dir,          (0xffff/360) deg
FIELD photcode,       photcode,     unsigned short, photcode

FIELD flags,          flags,        unsigned short, flags for various uses  
FIELD dophot,         dophot,       char,           dophot type
FIELD stargal,        stargal,      char,           star-galaxy separator

# new field elements needed for Pan-STARRS:
FIELD Xccd,           X_CCD,        float,          X coord on chip,               pixels
FIELD Yccd,           Y_CCD,        float,          Y coord on chip,               pixels

# could these be packed into fewer bits?
FIELD Sky,            SKY_FLUX,     float,          local estimate of sky flux,    counts/sec
FIELD dSky,           SKY_FLUX_ERR, float,          local estimate of sky flux,    counts/sec

FIELD dXccd,          X_CCD_ERR,    short,          X coord error on chip,         pixels
FIELD dYccd,          Y_CCD_ERR,    short,          Y coord error on chip,         pixels

# do we need more resolution than a short? should this be a log?
FIELD qPSF,           PSF_QF,       short,          psf coverage/quality factor

# Pan-STARRS uses a 64-bit detection ID.  keep this in two 32 bit ints for backwards compatibility?
FIELD detID_hi,       DET_ID_HI,    unsigned int,   ID upper bytes
FIELD detID_lo,       DET_ID_LO,    unsigned int,   ID lower bytes

FIELD imageID_hi,     IMAGE_ID_HI,  unsigned int,   reference to image
FIELD imageID_lo,     IMAGE_ID_LO,  unsigned int,   reference to image

# note that with airmass = 1.0 / cos(90 - alt), we have full alt/az representation
FIELD az,             AZ,           float,          telescope azimuth

# we need extra bytes for padding purposes...
FIELD dummy,          dummy,        char[2],        padding
