This tool generates the Look-Up-Tables which are used by the operational MERIS instrument processor in order to enhance overall processing performance.
The MERIS instrument is a programmable, medium-spectral resolution, imaging spectrometer operating in the solar reflective spectral range, and is one of the nine Earth-observation instruments on ENVISAT that gather information about the earth (land, water, ice, and atmosphere) using a variety of measurement principles.
The current version of the MERISAT tool is running on a SUN-SPARC workstation under the Solaris 2.6.x operating system with OpenWindows 3.x environment, and to assure its long-term maintainability this will be ported to a Linux operating system.
Source SKYSOFT