Tenders are Invited for Operation and Maintenance of Cesar Cebreros Telescope and Education Activities - Expro plus. Price Range: 100-200 KEURO The CESAR Project (Cooperation through Education in Science and Astronomy Research) is a joint educational initiative developed by ESA, THE Spanish "Instituto Nacional de Tcnica Aeroespacial" (INTA) and the Spanish public company "Ingeniera de Sistemas para la Defensa de Espaa"(ISDEFE). The CESAR Cebreros Telescope (CCT) is an optical mechanics Inc. OMI/TORUS CC05 model with a 50-cm diameter primary mirror currently installed at the ESAs Cebreros Satellite Tracking Station near Cebreros (vila, Spain), at an altitude of 720 m. The specific objective of this activity is to perform the operation and maintenance tasks of the CCT, as well as the logistical and educational management of the observations conducted with education centres within the CESAR project. Open Date: 15/04/2026 09:13 CET Closing Date: 19/05/2026 13:00 CET Tender Link : https://esastar-publication-ext.sso.esa.int/ESATenderActions/filter/open
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