OUL is a wide field imager designed as a small, additional payload to be attached to the Luna 26 mission. The instrument has a field of view of 20° × 20° and provides images with angular resolution 3 arcmin in several far ultraviolet bands, including Lyman-α, He II at 164nm and several continuum bands. The imager is designed to monitor the Earth’s exosphere and the ecliptic (+/-20°) primary at Lyman-α and in the 125-140 nm and 145-170 nm bands. In this contribution, the optical design of the instrument, its mechanical layout and the science program to be implemented will be described.
Spectr-UV/WSO-UV is the third and last of the Spektr missions (Spektr-Radio, Spektr-RG, Spektr-UF), space-based observatories, of the Russian Scientific Space Program. Spektr-UF/WSO-UV is a 2-m class ultraviolet (UV) observatory to be set in geosynchronous orbit in 2025 from the Vostochny launching pad. The observatory is equipped with instrumentation for UV spectroscopy and imaging. The Universidad Complutense de Madrid together with Institute of Astronomy of the Russian Academy of Sciences are developing jointly the imaging instrument for the mission. The instrument has a UV-optical channel designed for wide field imaging from 174 to 600 nm and a far UV (FUV) channel for high resolution imaging in the 115-175 nm range. Also, some low dispersion spectroscopic capabilities are available in the FUV channel. In this contribution, the characteristics and architecture of the MCP detector being developed by Spain for the FUV channel are described.
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