News Update


The Italian Space Agency completes the new National GNSS Frame Network

Feb 2022 | No Comment

Construction of the New National GNSS (Global Navigation Satellite System) Frame Network of the Italian Space Agency(ASI) has been completed. This infrastructure is of vital importance in providing up-to-date, accurate geodetic information for the scientific community and professional and entrepreneurial operators. The new network was built by e-GEOS, a company belonging to Telespazio (80%) and an investee of ASI (20%).

Through the use of latest-generation technologies, 46 stations distributed evenly across the Italian peninsula will enable the acquisition of signals generated by all the global satellite navigation systems, such as the US GPS, the Russian GLONASS, the Chinese Beidou and, above all, Europe’s Galileo.

ASI’s GNSS network, which was designed and developed to provide indispensable support for the global geodetic networks (such as the International GNSS Service IGS and the EUropean REference Frame EUREF), will produce data for the management of the International Terrestrial Reference Frame (ITRF). What’s more, it will make a variety of products and services possible: from determining the orbits of GNSS satellites (with an accuracy to the nearest centimetre) to time synchronizing them (better than one nanosecond), useful both for applications on-site as well as to support satellites equipped with GNSS receivers.

The new network will enable ASI and e-GEOS to intensify and fine-tune the joint scientific and operational development under way for the last 25 years at the ASI Space Centre in Matera in the field of meteorology, as well as the study of climate change and space weather. Specifically, the network will enable the provision to the national supply chain – from research centres to SMEs, universities and major corporations – of products and services that are useful for developing innovative, high-precision positioning applications, which can be implemented in a wide variety of sectors: from professional applications to those in the field of precision farming.

In order to contribute to scientific activities, some stations in the new GNSS network have been installed in particularly significant locations where purpose-designed structures are already present. These include, for instance: the ASI Space Centre in Matera, home to the Matera Laser Ranging Observatory MLRO and a VLBI (Very Long Baseline Interferometry) antenna whose data are used for accurate space geodesy measurements; ASI’s new SDSA (Sardinia Deep Space Antenna) operations base in San Basilio (Cagliari), where the Sardinia Radio Telescope SRT built by INAF can be found – a versatile instrument for radio astronomy, geodynamic studies and space science; the European Gravitational Observatory EGO in Cascina (Pisa), which plays host to the large VIRGO interferometer built to detect gravitational waves; as well as several Italian Air Force bases, home to weather stations.

www.asi.it

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