Euclid’s Health Monitoring System: Combining and Expanding ESA’s Operational Capabilities into New Use Cases

Abstract

The paper introduces the Health Monitoring System (HMS) for the European Space Agency (ESA) Euclid mission. Euclid, due for launch early 2023 and implementing an extragalactic sky survey relies on tight monitoring of its instrument performance in order to understand and prevent systematics. This requires not only access to a single data source as HouseKeeping Telemetry (HKTM) but also to other input sources that can allow to perform data correlation and cross-matching. The HMS, part of the Science Operations Centre (SOC), covers use cases for the off line monitoring of the health and performance of the instruments but also is a key component in the generation of the entry products for the scientific processing in the mission. It allows storage, access and analysis of time based parametric data and is designed using as baseline the ESA’s Analysis and Reporting System (ARES), that provides support for storage, analysis and display of many types of operational house-keeping time based data series. The simplicity of the system architecture and data enhancement is the key for its strength. This concept is being explored by other mission’s Science Operations Centres, as BepiColombo, XMM or PLATO, thus hinting new avenues and use cases where cross mission data can be easily exchanged. The paper shows how synergies across different operational areas at ESA create tools and use cases that provide overall added value. HMS is heavily based on excellent collaboration across ESA’s Directorates, and merges know-how and technologies from different operational environments (Mission and Science) into a wider system. The paper will describe the concept and technology of Euclid’s HMS and ARES, the data sources, structures and interfaces, and the different operational use cases, focusing highly on the novelty of its use at a Science Operations Centre.