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Guiding Options

Two guiding options are available, the F2 On-Instrument Wavefront Sensor (OIWFS) and the telescope's Peripheral Wavefront Sensors (PWFSs). F2 OIWFS is available for science observations requiring image quality within the IQ 85%-ile. Please consult with your program contact scientist about the convenience of using either guider.  

More work is planned during 2016B for achieving an image quality performance similar to that offered with the use of the PWFS2.  


  • F2 OIWFS
  • Using F2 with the PWFS