16 August 2016 Mission-level performance verification approach for the Euclid space mission
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Abstract
ESA's Dark Energy Mission Euclid will map the 3D matter distribution in our Universe using two Dark Energy probes: Weak Lensing (WL) and Galaxy Clustering (GC). The extreme accuracy required for both probes can only be achieved by observing from space in order to limit all observational biases in the measurements of the tracer galaxies. Weak Lensing requires an extremely high precision measurement of galaxy shapes realised with the Visual Imager (VIS) as well as photometric redshift measurements using near-infrared photometry provided by the Near Infrared Spectrometer Photometer (NISP). Galaxy Clustering requires accurate redshifts (Δz/(z+1)<0.1%) of galaxies to be obtained by the NISP Spectrometer.

Performance requirements on spacecraft, telescope assembly, scientific instruments and the ground data-processing have been carefully budgeted to meet the demanding top level science requirements. As part of the mission development, the verification of scientific performances needs mission-level end-to-end analyses in which the Euclid systems are modeled from as-designed to final as-built flight configurations. We present the plan to carry out end-to-end analysis coordinated by the ESA project team with the collaboration of the Euclid Consortium. The plan includes the definition of key performance parameters and their process of verification, the input and output identification and the management of applicable mission configurations in the parameter database.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roland D. Vavrek, Roland D. Vavrek, René J. Laureijs, René J. Laureijs, Jose Lorenzo Alvarez, Jose Lorenzo Alvarez, Jérôme Amiaux, Jérôme Amiaux, Yannick Mellier, Yannick Mellier, Ruyman Azzollini, Ruyman Azzollini, Guillermo Buenadicha, Guillermo Buenadicha, Gonzalo Saavedra Criado, Gonzalo Saavedra Criado, Mark Cropper, Mark Cropper, Christophe Dabin, Christophe Dabin, Anne Ealet, Anne Ealet, Bianca Garilli, Bianca Garilli, Anna Gregorio, Anna Gregorio, Henk Hoekstra, Henk Hoekstra, Knud Jahnke, Knud Jahnke, Martin Kilbinger, Martin Kilbinger, Tom Kitching, Tom Kitching, John Hoar, John Hoar, Will Percival, Will Percival, Giuseppe D. Racca, Giuseppe D. Racca, Jean-Christophe Salvignol, Jean-Christophe Salvignol, Marc Sauvage, Marc Sauvage, Roberto Scaramella, Roberto Scaramella, Luis M. Gaspar Venancio, Luis M. Gaspar Venancio, Yun Wang, Yun Wang, Andrea Zacchei, Andrea Zacchei, Stefanie Wachter, Stefanie Wachter, } "Mission-level performance verification approach for the Euclid space mission", Proc. SPIE 9911, Modeling, Systems Engineering, and Project Management for Astronomy VI, 991105 (16 August 2016); doi: 10.1117/12.2233015; https://doi.org/10.1117/12.2233015
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