ADM-AEOLUS: REDUCING OPERATIONAL EFFORT BY INNOVATIVE OPERATIONAL CONCEPTS AND MISSION PLANNING

摘要

The Atmospheric Dynamics Mission ADM-AEOLUS was selected in 1999 as the second Earth Explorer Core mission part of ESA's Living Planet Programme. Scheduled for launch in June 2009, AEOLUS will provide global observations of wind profiles from space to improve the quality of weather forecasts, and to advance our understanding of atmospheric dynamics and climate processes. By demonstrating new laser technology, AEOLUS is seen as a pre-operational mission paving the way for future meteorological satellites to measure the Earth's wind using these lasers. A substantial decrease in the operational effort associated to the routine mission phase is one of the mission's major goals. This in turn calls for definition of an innovative operational concept aimed at minimising ground intervention both in nominal and contingency situations. This paper will provide an overview of the AEOLUS Mission and Ground Segment and present an introduction of the on board Failure Detection, Isolation and Recovery (FDIR) approach and autonomy concept. The on board scheduling concept will be described which introduces a new innovative mechanism for telecommand execution based on spacecraft orbit position, as provided by the on-board GPS. The paper will then focus on the main mission requirements behind the Aeolus Operations concept. It will go on to discuss the operational concept drivers, how these are met and how to achieve the routine phase decrease in operational effort. The AEOLUS Flight Operations Segment (FOS) is based on extensive re-use of elements developed in the context of previous Earth Observation ground segments. It will be the first mission to incorporate some of the latest ESOC infrastructure developments. The FOS specific facilities required to support the mission planning systems within the AEOLUS Operational Concept shall be discussed.