The TESIS is a set of solar imaging instruments developed by the Lebedev Physical Institute of the Russian Academy of Science, and launched aboard the Russian spacecraft CORONAS-PHOTON in January 30, 2009. The main goal of the TESIS is to provide complex observations of solar active phenomena from the transition region to the inner and outer solar corona with high spatial, spectral and temporal resolution in the EUV and Soft X-ray spectral bands.
The TESIS includes five unique space instruments to observe the inner and outer solar corona from 0.2 to 4 solar radii in spectral band 290-320 A. With the advanced capabilities of its instruments, the TESIS will help better understand the physics of solar flares and high-energy phenomena and provide new data on parameters of solar plasma in the temperature range 105 - 107 K.
The TESIS experiment started in the deep minimun between the 23rd and the 24th cycles of solar activity and planned to continue through all the razing phase of new cycle till 2012-1013.
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© 1953-2012 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia
