S.I. Donchenko, O.V. Denisenko, V.N. Fedotov, I.S. Sylvestrov FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russiadirector@vniiftri.rudenisenko@vniiftri.ru,fedotov@vniiftri.ru,igsilv@vniiftri.ru Al’manac of Modern Metrology № 1 (25) 2021, pages 12–17 Annotation. The article summarizes the work on the development of the system of metrological support of the GLONASS system within the framework of the activity of the Federal Target Program “Maintenance, … Continue reading 2021 — the beginning of a new stage of work on metrological support of the GLONASS system