HARMONI is a first light instrument for the European Extremely Large Telescope (ELT) that uses near-infrared integral field spectroscopy to capture detailed spectral information across astronomical objects.  The Adaptive Optics Control System (AOCS) for HARMONI is designed to support laser tomographic, single conjugate and high-contrast AO operating modes in support of the various HARMONI observing modes. We present the design and performance of the multi-AO mode AOCS for HARMONI, covering both hard and soft real time control system performance.

We provide a detailed status report of our development efforts, with a focus on the system design and the results of our recent prototyping efforts. First, we will present the prototype of the HARMONI hard real-time control system (HRTC) and its design, including timing results from a full-scale HRTC in the laboratory. We have recently updated our designs with the development of Durham's next-generation AO RTC called DAO.

We will show how DAO meets (and can exceed) the requirements HARMONI places on the AOCS to achieve its scientific goals. Finally, we present the design and status of the soft real-time control system (SRTC) for HARMONI. Including algorithm performance results that drive computation and system dimensioning and the use of the ESO RTC Toolkit.

David Barr, Durham University