Automated Design Reference Mission Generation for THEIA

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present and refine an algorithm for the automated generation of Design Reference Missions (DRMs) for planet finding space-borne instruments. Unlike previous DRM tools, our algorithm automatically generates an initial target list, and auto-schedules visits and re-visits to these targets based on pre-set parameters which are translatable to mission rules. In addition to previously demonstrated completeness and return visit optimizations, we also incorporate a more realistic model of spacecraft orbital transfers (for missions incorporating occulters), an advanced integration time calculation based on desired false alarm probabilities, missed detection rates and the specific instruments’ characteristics, and the possibility of multiple planets in some extra-solar systems. Finally, we allow for the incorporation of multiple free parameters including the frequency of occurrence of Earth-like planets. We apply the algorithm to the THEIA mission concept and present average mission results for various rule sets.

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