Sentinel-1A
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Sentinel-1A is a European radar imaging satellite launched in 2014 and decommissioned in 2026. It is the first Sentinel-1 satellite launched as part of the European Union's Copernicus programme. The s
Model of a Sentinel-1 satellite (radar antenna missing)
Sentinel 1 IMG 5874 white
Inmarsat-4A F4
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Inmarsat-4A F4, also known as Alphasat and Inmarsat-XL, is a large geostationary communications I-4 satellite operated by United Kingdom-based Inmarsat in partnership with the European Space Agency. L
Sentinel-1A
…verification of the ESA European Data Relay System. In 2014, data from the Sentinel-1A satellite in LEO was transmitted via an optical link to the Alphasat in GEO and then relayed to a ground station using a Ka band downlink. On 31 August 2016, ESA announced they had discovered that a solar panel on the…
Full scale mockup Alphasat at Le Bourget Airshow 2013