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Once engineers have realised that an anomaly has happened, they face the problem of identifying the possible causes and other effects of this anomaly. DrMUST performs pattern matching to find similar behaviours across history (years) and correlation analysis to find which other parameters (out of 20 000) are involved in a given anomaly. DrMUST can be used not only for anomaly investigation but also to perform characterisations.
DrMUST is currently used by Venus Express and Planck both for pattern matching and correlation analysis. Flight Control Team reports 20% – 30% effort reduction in performing anomaly investigation (the other 70% - 80% effort is taken by taking corrective and preventive actions such as modifying procedures).