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Paper title Access to the SAOCOM mission over the ASI Zone of Exclusivity: features, approaches, results
Authors
  1. Ettore Lopinto ASI - Agenzia Spaziale Italiana Speaker
  2. Luca Fasano ASI - Agenzia Spaziale Italiana
  3. Francesco Longo The Italian Space Agency
  4. Patrizia Sacco Agenzia Spaziale Italiana (ASI)
  5. Francesco Tataranni ASI - Agenzia Spaziale Italiana
Form of presentation Poster
Topics
  • B6. National missions TPM
    • B6.01 National EO satellite missions
Abstract text The paper describes the realization of an access point to the CONAE SAOCOM mission, enabling the ordering and the dissemination of the products acquired by the SAR sensor over the geographic area in which the Italian Space Agency (ASI) has exclusive rights of exploitation of the data. SAOCOM (Satélite Argentino de Observación COn Microondas) is a L-band SAR based remote sensing constellation owned by the Argentinean Space Agency CONAE (Comisión Nacional de Actividades Espaciales) and formed by two identical 1A and 1B satellites, launched in 8 October 2018 and 30 August 2020 respectively. Within the collaborative project named SIASGE (Italian-Argentinian satellite system for Disaster Management and economic development), a certain amount of SAOCOM data acquisition and processing resources has been reserved to ASI for exclusive use in the so-called Zone of Exclusivity (ZoE) placed in the 10W-50E longitude range and 30-80N latitude range. In such zone ASI has the right to use the SAOCOM system freely, fully and up to the saturation of the granted resources (around 150s of sensing time per orbit), for scientific and institutional purposes by users constituted by the agency internal personnel or by people who -for the strict scopes of SAOCOM mission exploitation- became affiliated to ASI. At the time of writing, the ASI SAOCOM access point offers the capability to select and download products over the ZoE chosen in an archive containing more than 6k images but also experimental services for ordering the processing of SAOCOM data at various levels (from complex slant range up to geocoded) and programming new acquisition in the ZoE.
The development of the access point to mission resources has been based on the following approach and concepts:
• Reuse a reliable archive/catalogue system which is well known and full proven by the Remote Sensing community, possibly released under an Open Source license
• Maintain simplest possible interfaces for registration of users and for requesting products and new acquisitions
• Develop the access point in an incremental way, enriching the basic functions like registration and product dissemination with upper capabilities as managing new acquisitions request
• Use a storage/computation informatic infrastructure based on cloud resources owned by public Italian organizations
• Maintain a strict cooperation with the CONAE SAOCOM team for improving the interactions (at interfaces, archive contents, etc level) between the ASI access point and the Argentinean mission GS
Under these rationales and concepts, the access point has been realized with:
• the ESA developed DHuS - Data Hub System as the catalogue / archive system, widely adopted in the Copernicus Sentinel GS, which offers both a traditional web based human interface but also OpenSearch and OData M2M (Machine to Machine) product search and download capabilities
• ASI internally developed SW for handling user registration, incremental archive filling (through discovery/download actions over the Argentinean mission GS) and for product reprocessing and new acquisition programming experimental functions
• A cloud infrastructure based on OpenStack framework running on GARR, the Italian ultra-broadband network dedicated to the education and research community, having as main objective to provide high-performance connectivity and to develop innovative services for the daily activities of teachers, researchers and students and for international collaboration
• The collaborative support of CONAE for the transfer of the entire SAOCOM product archive on the ASI ZoE (near 130k product) and for the set-up of M2M interfaces by the SAOCOM GS and the ASI access point