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Information × Registration Number 0206U002875, 0103U001178 , R & D reports Title Study of the change of the orientation of the Earth in space and other phenomenon by LRS, VLBI and GPS-observations.(Third stage). popup.stage_title Head Medvedsky M.M., Registration Date 24-02-2006 Organization Main Astronomical Observatory popup.description2 Was made the regular LRS, VLBI and GPS-observations; was determine the OEP, using wide world observation network; was made combine solution catalogue of radiosources. Strong nonlinear effects in series of Earth Orientation Parameters (EOP) and Atmospheric Angular Momentum observations were detected . Some parameters as proved are chaotic values having temporal evolution . Munk and Macdonald system of equations commonly used for EOP analysis are linear and can not provide an information about these effects . An analysis of constraints applyed in system derivation revealed that biaxial model of the Earth rotation used is not dynamically equivalent to the real Earth triaxial one . To avoid a tremendous size of system full equations of the Earth rotation in different variable sets are obtained .5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close