Aperture Photometry Tool, v. 2.5.8, is now available:
There are bug fixes and enhancements in this release.
Modified the FITS-image reader to be robust against cases where GAIN = ‘unavail’. Thanks to Lucimara Martins for reporting this problem.
Modified the code to write the entire input-image FITS header to the output FITS file containing the non-sky-annulus local background image from sky Model F (except for BZERO and BSCALE, which are seldom if ever used for a 32-bit floating-point image).