Selection of the MMRS bands was based on preceding space missions and the spectral absorption characteristics of foliage, terrain, water constituents, average extraterrestrial irradiances and the spectral transmittance of the atmosphere. Data required for such selection were provided by many applied sciences institutes. In fact, main performances of MMRS were fixed during an ad-hoc workshop carried out in 1994.

The selected medium resolution (100/300 m) allows compatibilization of large area requirements covered with minimum amount of images, with high repetition frequency, without excessive loss of details. Besides, such a system , substantially reduces the volume of data to be processed and analyzed.

As the satellite passes, data is captured and stored on a file of the reception device. The system then uses data from this file to produce the final images. The production cycle consists of the following phases.

• Permanent Storage
• Bit-stream to byte-stream Conversion
• Framing of MMRS formats. Framing and reconstruction from satellite format
• Generation of other data. Generation of Quick Look images for catalog
• Catalog consulting and search for images. Product Orders
• Product processing, delivery and registration

The system also features management and maintenance systems such as:

• User management
• Backup management
• Customer management

The system is operated by three main types of users:

• The system administrator who performs the general operation and maintenance
• A specialist who classifies the images in the catalog
• External users who consult the catalog and issue Orders