Tenders are invited for Ariel Solar Array Subsystem. Ariel, as the fourth medium-class mission (M4) in the ESA Cosmic Vision Plan, following Solar Orbiter (M1), Euclid (M2) and Plato (M3) is planned for launch in 2029. Its mission aims at determining the chemical composition and physical conditions of the atmosphere for a set of exoplanets and encompasses a duration for a first phase of 6 months for the transit up to the Halo orbit at L2 position, the cooldown and the commissioning, and an operational phase of 3.5 years. An extended mission lifetime of 2 years is also considered. In this framework, the objective of the present procurement is the selection of the contractor for the Ariel Solar Array Subsystem (SAS) in accordance with the principles of ESA Best Practices for the Selection of Subcontractors by Prime Contractors in the frame of ESAs Major Procurements (reference ESA BEST PRACTICES IPC(2012)65,rev.2)ESA Best Practices. The Solar Array Subsystem is part of the ARIEL Power Functional Chain and shall essentially comprise: Four Independent Body Panel(s) Solar Cell Assemblies Photovoltaic Assemblies Electrical transfer harness and connectors Thermal control hardware (including thermal closures (if required) to seal panel lifting holes and other means to prevent transmission of sunlight). The contractor will although be asked to deliver the following Mechanical Ground Support Equipment (MGSE): One set of handling/lifting/installation device(s) A dummy Solar Array used to replace the flight Solar Array during the Spacecraft TVAC tests, with same geometry, thermal and mechanical interfaces and equipped with heaters. The scope of this procurement covers the design, development, manufacture, assembly, integration, verification and delivery of the SAS and MGSE for the ARIEL S/C. Open Date: 10/11/2023 11:23 CET Closing Date: 19/01/2024 13:00 CET. Tender Link : https://esastar-publication-ext.sso.esa.int/nonEsaTenderActions/filter/open
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