PEP image filenames have the form "program"_"field"_"band"_"type of file".DR1[".extension"].fits Only the single extension Map images have the ".extension" section of the filename. Multi-extension data cubes are also available but will not display well in the IRSA Viewer preview tool. program = pep in most cases, pgh for the GOODS fields field = the galaxy clusters observed by PEP are: A1689 A1835 A2218 A2219 A2390 A370 CL0024 MS0451 MS1054 MS1358 RXJ0152 RXJ13475 The blank fields observed by PEP are: COSMOS ECDFS EGS GOODSN GOODSS LH band = either the wavelength in microns, or "blue", "green", or "red". "blue" = 70 microns, "green" = 100 microns, "red" = 160 microns Possible values for "band" are 70um, 100um, 160um, and for the MS1054 and RXJ0152 fields also 250um, 350um, and 500um. type of file = Map, Mask, or Residuals. The latter come in two types, using blind extractions or 24 micron priors ("blind_Residuals.3sigma" and "priors_Residuals.3sigma" respectively). extension = sci, err, or cov, for the science image, uncertainty map, and coverage map, respectively. Despite fine-tuning, Starfinder tends to overestimate the flux of sources at the faintest flux levels. A correction of this effect has already been applied to the released catalogs, using the functions derived from simulations. Correction curves are provided in the released data package, in case users would like to un-correct fluxes. Curves of the completeness and the fraction of spurious sources as a function of flux are included as well.