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PWFS2 (non-siderial targets)

Available for non-siderial targets or when a suitable OIWFS star is not available. There are a few drawbacks with using the P2WFS instead of the OIWFS which are:
  • The probe vignettes the F2 FOV.
  • The flexure between the probe arm and the detector has not been quantified
More information on the P2WFS can be found at Peripheral Wavefront Sensor (PWFS2)