PACKAGE = apphot
   TASK = datapars
    
(scale  =                   1.) Image scale in units per pixel
(fwhmpsf=                  3.7) FWHM of the PSF in scale units
(emissio=                  yes) Features are positive ?
(sigma  =                INDEF) Standard deviation of background in counts
(datamin=                INDEF) Minimum good data value
(datamax=                INDEF) Maximum good data value
(noise  =              poisson) Noise model
(ccdread=                     ) CCD readout noise image header keyword
(gain   =                     ) CCD gain image header keyword
(readnoi=                   0.) CCD readout noise in electrons
(epadu  =                   1.) Gain in electrons per count
(exposur=                     ) Exposure time image header keyword
(airmass=                     ) Airmass image header keyword
(filter =                     ) Filter image header keyword
(obstime=                     ) Time of observation image header keyword
(itime  =                   1.) Exposure time
(xairmas=                INDEF) Airmass