Date	Speaker	Topic
16.09.2024	Werner Laun	The METIS-cryostat The new large ELT telescope is slowly growing on the Cerro Armazones in Chile. At the same time as the telescope is being built, the first generation of instruments is also being built. The MPIA is involved in 2 instruments, METIS and MICADO. For METIS, the MPIA has taken on two large work packages: the wavefront sensor and the imager. The design and construction of the cryostat, which is the subject here, are work packages of ETH Zurich. However, the MPIA was heavily involved in the initial concept and design. In the meantime, the first parts of the cryostat have arrived in Zurich and integration has begun. This talk is intended to explain what a cryostat is and how this special cryostat for METIS is constructed. Colleagues who are not involved in instrumentation or science are also invited to attend. Presentation: German Slides: English Questions: German, English
11.11.2024	Julian Stuermer (LSW)	CUBES CUBES, the Cassegrain U-Band Efficient Spectrograph, brings a unique capability to ESO’s Very Large Telescope: an ultraviolet eye on the Universe to complement the Extremely Large Telescope. CUBES aims to be the most efficient (> 40%) ground based spectrograph in the UV with a spectral coverage of 300–405 nm. Two resolution modes are offered: 20000 and 7000. The final design phase is currently being completed and it is expected that manufacturing phase is starting early next year. The talk gives an overview of CUBES, with a focus of the technical challenges in optics and mechanics. New grating technology enables high efficiency in the UV, while an active flexure compensation supports the spectral stability of the instrument. Presentation: German Slides: English Questions: German, English
14.11.2024	Cécile Deprez (DLR Munich)	The Future of Satellite Navigation At the German Aerospace Center (DLR), we are pioneering the next generation of satellite-based positioning systems. Our research focuses on integrating innovative technologies, including laser communication links and optical clocks, into satellite payloads to significantly enhance positioning accuracy for ground and space users. In this lecture, we will introduce the key concepts of satellite-based positioning and present the solutions developed at DLR for the future of global navigation. Presentation: English Slides: English Questions: German, English