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Thales Alenia Space to Build The ROSE-L Satellite For The ESA

December 3, 2020

Thales Alenia Space, a joint venture between Thales (67 %) and Leonardo (33 %), has signed a 482 million euros contract with the European Space Agency (ESA) to build the Copernicus Radar Observation System for Europe in L-band (ROSE-L) environmental monitoring satellite, as part of Europe’s Copernicus program, the first tranche being 90 million euros.

Artistic rendition of the ROSE-L satellite, courtesy of Thales Alenia Space.

Copernicus is an Earth Observation (EO) program led by the European Commission with the European Space Agency ESA coordinating and managing the space component. It provides for the Sentinel satellites series and EO data for environmental protection, climate monitoring, natural disaster assessment and other social tasks.

Thales Alenia Space will serve as prime contractor for this program, with Airbus Defence and Space as the main partner for the radar instrument. This mission responds to the requirements expressed by both the Land Monitoring and the Emergency Management services. Its target applications are: soil moisture, land cover mapping, crop type and status discrimination, forest type/forest cover (in support to biomass estimation), food security and precision farming, maritime surveillance and natural and anthropogenic hazards. In addition, the mission will contribute to the operational monitoring of the cryosphere and polar regions including sea ice mapping and land ice monitoring.

Other emerging applications will be possible by the synergistic and complementary observations with C-band and X-band SAR systems. ROSE-L is a 3-axis, stabilized satellite based on the new Thales Alenia Space Multi-Mission Platform product line (MILA) and will embark the L-Band Synthetic Aperture Radar (SAR) Instrument dedicated to the day-and-night monitoring of land, ice and oceans offering improved revisit time, full polarimetry, high spatial resolution, high sensitivity, low ambiguity ratios and capability for repeat-pass and single-pass cross-track interferometry.

The satellite is based on a 5-panel, deployable, 11 m x 3.6 m L-band, highly innovative and lightweight planar Phased Array Antenna (PAA). The satellite will also carry a set of 3 Monitoring Cameras (CAM) to monitor the deployment of the SAR antenna and the solar arrays.

The platform, based on the new MILA platform product line, will also be compliant with space debris mitigation requirements using demisable technologies for clean space requirements and mechanical Interfaces compatible with a possible future On Orbit Servicing capability. ROSE L will be compatible with Vega-C and Ariane 6-2 and will weight 2,060 kg at launch and will be positioned at an altitude of 700 km.

Executive Comments

Hervé Derrey

“With this contract, Thales Alenia Space confirms its positioning as a key player in Earth Observation and Environmental missions. For services such as the Copernicus Emergency Management Service (EMS) in particular, ROSE L data will allow to reduce time between the occurrence of a natural or anthropogenic disaster and the first post-disaster image which is of crucial importance for citizen security,” said Hervé Derrey, CEO of Thales Alenia Space.

Massimo Comparini

Massimo Comparini, Senior EVP Observation, Exploration and Navigation at Thales Alenia Space, added, “Thales Alenia Space will capitalize on its flight proven heritage on Radar Earth observation programs to serve this new mission. ROSE-L will provide additional European radar imaging capacity above and beyond that provided by Sentinel-1 and thus an opportunity to increase coverage at European and Global level, reducing the time intervals between successive radar images.”

Filed Under: Agencies, Contracts, Earth Observation (EO), Satellites

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