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Information × Registration Number 0125U000503, R & D request Title Monitoring and thematic observations of astrometric and geodynamic programs of the GAO NAS of Ukraine (international status and analysis of results) Head Medvedskyi Mykhailo M., Кандидат фізико-математичних наук Registration Date 21-01-2025 Organization Main Astronomical Observatory of the National Academy of Sciences of Ukraine popup.description1 The aim of the work is to determine the parameters of the Earth's rotation with the accuracy of international standards based on modern astrocosmical observations. This necessitates the implementation of a number of tasks: 1. Ensuring the functioning of the existing Ukrainian network of GNSS stations, the Kyiv-Golosiiv laser station and the AZT-2 telescope; 2. Studying the impact of changes in the EOP and movements and deformations (MoD) on the implementation of the celestial and terrestrial reference systems; 3. Development of software complexes for determining the EOP and other parameters, determining the EOPbased on laser observation data; 4. Distributing current implementations of the International and European terrestrial coordinate systems to the territory of Ukraine by determining the coordinates and velocities of Ukrainian permanent GNSS stations; 5. Studying supercool dwarfs based on astrometric observations on optical ground-based telescopes and data from the Gaia catalog to determine orbital parameters and masses of components; 6. Study of the influence of differential atmospheric displacement of stars on astrometric measurements for very large ground-based telescopes with adaptive optics; 7. Processing scans of photographic plates of the FON program and other observation programs, creation of corresponding catalogs of positions of stellar objects in the GAIA DR2 system and their stellar U, B, V, R magnitudes in the Johnson system, and based on these catalogs, creation of a Consolidated catalog; 8. Develop a methodology for observing the coverage of stars by asteroids, conducting observations and processing them, determination of the sizes of asteroids. popup.nrat_date 2025-01-21 Close