ИСТИНА

The UHECR detector TUS will observe faint fluorescent tracks of extensive air shower (EAS), produced by a primary energetic particle in the atmosphere. For this purpose the detector contains a large Fresnel-type mirror-concentrator (~2 m2) and photo receiver placed in the focal plane (matrix of 16x16 PM tubes with a spatial resolution in the atmosphere ~ 5 km).The TUS space experiment is aimed to study the energy spectrum and arrival distribution of UHECR at energy range above ~1020 eV. The TUS mission is planned for launching at the dedicated “Mikhail Lomonosov” satellite at the end of 2013. At 2012 the complex TUS apparatus tests were done in assembling to “Mikhail Lomonosov” space platform. The optical parameter measurements of the TUS Fresnel mirror were fulfilled. The optical simulator of extensive air shower was produced for tests of the TUS photo-detector trigger electronic. The preflight tests, development of trigger simulation, event reconstruction and data analyses programs are in progress.