mask u27z7401n_c0f.fits u27z7401n_c1f.fits
mask u27z7402t_c0f.fits u27z7402t_c1f.fits
mask u27z7403t_c0f.fits u27z7403t_c1f.fits
*************************

getsky u27z7401n_c0f 1
getsky u27z7402t_c0f 1
getsky u27z7403t_c0f 1
*************************