Status of the TUS Space Experiment Preparation

The TUS space project for investigation of Ultra High Energy Cosmic Rays (UHECR) by the measurement of Extensive Atmospheric Shower fluorescent radiation is in the construction stage. The main goal of the TUS mission is to search for cosmic ray particles beyond the GZK energy limit. The observation of the full sky for primary particle arrival directions is an advantage of the TUS project in comparison to the ground based experiments. The TUS experience of UHECR study from the space will be of importance for future space detectors like the JEM-EUSO mission. The TUS detector operation could be considered as a "pathfinder" for the JEM-EUSO mission including the JEM-EUSO UV sensor test. The technological TUS prototype is produced and their tests are in progress. The flight detector has to be produced in 2010-2011. The mission is planned for operation at the end of 2011 at the dedicated "Mikhail Lomonosov" satellite.