Positioner System ArchitectureBaseline for the full architecture is a stepped tiled focal plane. This is the only configuration which can compensate adequately for the non-telecentricity of the ELT and provide support for all required modes. The focal plane is tiled with hexapods on a honeycomb pattern. The top platform of the hexapod is populated with MOS aperture(s) and a mirror pick-off to redirect light toward the Natural Guide Stars or IFU receivers.
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