A Distributed Event Detection System for the Solar Dynamics Observatory

The Solar Dynamics Observatory (SDO) instruments such as the Atmospheric Imaging Assembly (AIA), in addition to other upcoming missions, will provide a unique data processing challenge to the community. Vast amounts of data need to be processed in a largely automated, efficient manner. We present the implementation of the AIA Event Detection System. This software autonomously configures subscriptions between related event detection algorithms submitted by collaborators, allowing adjusting of algorithm parameters in response to events, and will run them as it receives new data from AIA. Results will automatically be published to the Helioinformatics Event Knowledgebase (HEK) with provenance information. The system uses distributed processing and has abilities to automatically reconfigure in case of node failures or overloads. We demonstrate some of these abilities through feature extraction algorithms for sunspot detection run on past SOHO MDI data.