The European Space Agency Tender

Truths (traceable Radiometry Underpinning Terrestrial- And Helio- Studies) Is An Operational Climate Mission, Aiming To Enhance By An Order-of-magnitude Our Ability To Estimate The Earth Radiation Budget Through Direct Measurements, And At The Same Time A Calibration Service Mission Which Establishes A Metrology Laboratory In Space' To Create A Fiducial (international System Of Units - Si Traceable) Reference Data Set To Cross-calibrate Other Satellite/optical Sensors And Improve The Quality Of Their Data. The Truths Mission Comprises A Single Satellite, Hosting An Innovative Payload Able To Spectrally And Spatially Resolve Earth And Solar Radiance From Uv To Short-wave Infrared Wavelength With Unprecedented Radiometric Accuracy. The Truths Ground Segment (gs) Will Consist Of A Truths Flight Operations Segment (t-fos) And A Truths Payload Data Ground Segment (t-pdgs), To Be Developed By The Selected Contractor And To Be Then Located In A Facility/ Facilities To Be Made Available By The Uk On Its Territory. The T-fos Comprises Among Othersthe Mission Control System, The Flight Dynamics System, And The Interface To The Ground Stations And To The T-pdgs. The T-pdgs Is Entrusted To Generate The Truths Mission Products Up To Level 2 And Will Also Include Modules To Evaluate The Metrological Accuracy (end-to-end Metrology Module) And To Perform The Cross-calibration Of Other Satellite Measurements (sensor-to-sensor Calibration Module), Plus The Interface To The Data Downlink Station And The Users Services, To Be Implemented Within The Esrin Portal Infrastructure, To Permit Federation Of Mission Data Access, Authenticated Data User Identification And To Implement The Esa Open Data Access Policy. The Leop And Early Commissioning Will Be Performed By Esa At Esoc Who Will Hand-over The Satellite Operations To The T-fos During The Commissioning Phase. Truths Is Planned To Be Launched At The End Of 2030 And To Remain Operational For A Nominal 5-year Period, After 6-month Commissioning. Disclaimer : Closing date mentioned is an assumption date, Please contact the tendering authority to get exact closing date.