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Thales Alenia Space to build ESA’s FLEX vegetation-monitoring satellite

10 Jan 2019, 20:15 UTC
Thales Alenia Space to build ESA’s FLEX vegetation-monitoring satellite
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WASHINGTON — Thales Alenia Space said Jan. 10 it received a contract from the European Space Agency worth approximately 150 million euros ($172.4 million) to build the Fluorescent Explorer satellite.
Fluorescent Explorer, or FLEX, is an ESA Earth Explorer mission that will measure photosynthetic activity by mapping vegetation fluorescence.
The satellite is projected to launch in 2023 aboard a Vega C rocket, according to Thales Alenia Space. Raphael Berruyer, FLEX project manager at Thales Alenia Space, said by email that FLEX has a lifespan of five years, and is projected to weigh 450 kilograms.
When ESA selected the FLEX mission in 2015, it expected the satellite to launch in 2022, a year sooner than the current schedule. Berruyer said the mission schedule was extended to accommodate requested performance improvements to the satellite’s main instrument: the Fluorescence Imaging Spectrometer, or FLORIS.
ESA awarded the FLORIS contract to Rome-based Leonardo in 2016. Under a contract change announced Jan. 10, Thales Alenia Space, not ESA, is now Leonardo’s customer for the instrument.
FLEX will operate in an 815-kilometer sun-synchronous orbit in tandem with one of the European Commission’s Sentinel-3 satellites. Data from FLEX’s spectrometer and Sentinel-3’s optical and ...

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