Terrascope is a satellite data platform run by VITO, a research and technology organisation in Mol, Belgium. It gives users access to Copernicus Sentinel imagery and other Earth observation datasets through a web viewer, downloadable time series and virtual research environments with notebooks and virtual machines. Organisations can also offer their own services through the EOplaza marketplace. Terrascope is delivered as a hosted online service, with data also available via web services and an SFTP file server.
For a European organisation the sovereignty facts published are as follows. VITO is headquartered in Belgium, the services page describes the processing environment as running on VITO servers, and the privacy notice states that processing is subject to Belgian law. The core imagery is open Copernicus data from the European Union and ESA. Terrascope itself is not distributed as open-source software, and the site does not name a non-European owner or hosting provider.