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Simulating Euclid: Preparing for the Exploration of the Dark Universe

"π‘‡β„Žπ‘’ 𝑓𝑒𝑛 π‘π‘Žπ‘Ÿπ‘‘ 𝑖𝑠 π‘‘β„Žπ‘’ π‘π‘œπ‘›π‘‘π‘–π‘›π‘”π‘’π‘›π‘π‘–π‘’π‘ " Telespazio Germany's role in the mission designed to explore the composition and evolution of the dark Universe. 

ESA's Euclid mission aims to unravel the mysteries of the Universe by investigating its expansion and formation of its structure throughout cosmic history. Through observing billions of galaxies, spanning over 10 billion light-years and encompassing more than a third of the sky, Euclid will construct a comprehensive map of the Universe's large-scale structure, shedding light on the profound interplay between gravity, dark energy, and dark matter.

Playing a vital role in the mission's success, Telespazio Germany actively contributes to the simulations campaign by providing rigorous training for the Euclid Flight Control Team. These simulations take place at the ESA Operations & Space Safety Centre (ESOC) in the months leading up to the mission, encompassing various scenarios to test the team's proficiency. From assessing the spacecraft's functionality to evaluating external factors like solar radiation and debris, as well as addressing human-related aspects such as team cohesion, confidence, and potential challenges like illness, the simulations ensure that any space-related problem can be effectively resolved on the ground.

At the core of this preparation are the dedicated simulation officers, our Telespazio colleagues Joe Bush and Eduard Baumstark, who meticulously design comprehensive scenarios for the spacecraft's LEOP and commissioning phases. By injecting faults, they simulate potential technical failures that require the mission controllers to respond swiftly and accurately. While some faults are announced in advance, many are spontaneous surprises, enhancing the realism of the training and providing the team with invaluable hands-on experience.

The simulations encompass detailed contingency scenarios, carefully crafted to challenge the engineers and prompt them to tackle real-life problems that could jeopardize the mission. Beyond technical risks, such as under or over-performance of the launcher, onboard system failures, or loss of communication, the teams also practice responding to issues that may arise within the ground systems, ensuring comprehensive readiness for any possible situation.

As the launch campaign approaches its climax, all ESOC facilities, services, and teams reach a state of full readiness. Every software system, hardware component, and documentation is thoroughly scrutinized and validated, symbolizing the final stage of preparation. At this pivotal moment, the teams, the mission control system, and the entire centre align their focus on the impending launch.

In pursuit of understanding the intricacies of the Dark Universe, the Euclid mission –with the collaboration of companies like Telespazio Germany- combines advanced technology, rigorous training, and meticulous preparation to delve into the cosmic depths, illuminating the fundamental forces shaping our existence.