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Guiding Options

Two guiding options are normally available, the F2 On-Instrument Wavefront Sensor (OIWFS) and the telescope's Peripheral Wavefront Sensors (PWFSs). The F2 OIWFS is currently not available for use until fixing the probe arm mechanism during the next instrument shutdown. 


  • F2 OIWFS
  • Using F2 with the PWFS


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