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What deflection do we want? For Auxtel the FOV is about 6 arcmin. From center to side it's 2000*0.1 arcsec = 200 arcsec = 3.33 arcmin. So a deflection of 2 arcmin seems decent. If we're 4m away from primary, spot is displaced by only 2mm.
Problem with this config is beams are not very separated, spatially. We need a precision periscope on some to get more displacement.
NoteMeghan Notes
Note: start a parts list document!!
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