Our core product is the PDGS SW infrastructure enabling mission specific data ingestion and processing. The modular and scalable Ground Segment features multimission acquisition, real time ingestion, data processing and dissemination. XPR participated to Core PDGS implementation of Sentinel 1, 2, and 3. XPR SW is running in all ESA Copernicus PDGS operating centers. We design and develop facilities and tools to support functions performed at ground segment. Exprivia has designed, developed, tested and certified different Processors (SAR, optical, meteorogical, altimetric, gravimetric) to consent both basic and value-added (L0, L1A, L1B and L2) products generation. Exprivia also realized related Quality Control and Calibration/Validation Facilities. We develop applications for both research (VR& AR for 3D models and scientific data visualization) and commercial/operational activities (e.g. EMSA IMDatE maritime surveillance system). Exprivia is implementing but also developing innovative technology. From large-scale industrial systems to Internet of Things, Exprivia has been driving forward innovation in Space, Cloud Computing and Healthcare.
In November 2020, Exprivia won ESA contract for LTA Service. It aims at the transformation of mission "dedicated" EO ground systems into "multi-mission" services with web architecture and cloud based services. Exprivia is the first Italian company working on a Long Term Data preservation of this importance (9 PB of data in 18 months). It is also the first European company and one of the few in the world to base the long-term IT data archiving on optical media. For the next 10-50 years, LTA service will archive data acquired by the Copernicus satellites. Daily, the service ingests about 1 TB of data per satellite mission from the acquisition and processing centres throughout Europe. It extracts and stores metadata on, near and off line, catalogues them, supply registered users with data for higher-level products.
In 2020, EUM outsourced an Integration and Verification (I&V) MM ground segment service to (Exprivia and GMV Prime) for:
· I&V Engineering preparation (technical I&V documentation)
· I&V activities execution (integration and verification of testing campaigns)
· Validation activities contribution (validation test campaigns support)
· Contribution to management/programmatic activities
Usually, a specific GS is developed in already functioning EUM context, where to interface with the existing MM sub-segments. Commonly, an incremental lifecycle with different phases running in parallel is adopted. Starting with interface compatible version, through a refined version prior to launch and finally one with all functionalities integrated during commissioning. This requires continuous integration and testing of new/updated systems and/or CFI versions.
At the beginning of 2020, XPR won a contract for the provision of UMARF SW Maintenance Service. The UMARF 24/7 facility, responsible for the long-term preservation of data from EUMETSAT missions, is based on the OAIS model. Consequently, the UMARF is split into 2 fundamental functional chains: Ingestion and Retrieval. The service objective is a sustainable long-term maintenance of the UMARF SW components of these two chains. A Ramp-up phase enabled XPR to set-up necessary facilities, tools and procedures at its premises to support the service. The CORBA protocol, enabling communication between UMARF components written in different languages was replaced by REST paradigm to reduce SW complexity.
In September 2019, Exprivia headed consortium set-up Copernicus ‘Space Component Worldwide Sentinels Data Access Benchmark’ (CDAB) Service for testing and benchmarking ESA DIAS services from a user point of view. It offers a comprehensive and objective synopsis of the conditions experienced by users trying to discover, view, download and otherwise locally manipulate the Sentinels’ data. CDAB main goals are to:
· Operate a benchmarking service for providing ESA with information to bridge the gap between the performance measured locally at hubs and DIAS/s and the one reported by different user communities
· Provide ESA with information to improve the services, address users’ concerns and interpret the reported performances and anomalies
In 2019, XPR won EUM contract for the Requirements Engineering and Rational DOORS services. The decades’ long experience in design, development and AIV of GS/Processing Facilities permit to address smoothly complete requirements life cycle process (elicitation, consolidation, specification, traceability and monitoring) following the [ECSS-E-ST-10] standard. Req. management tools capture and store requirements in a repository. DOORS (adopted in space industry) is a tool used at EUM.