ISS LOOP
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				 EXPLANATION

- ISS reads in limb of sun and automatically centers the instrument (active 
  optics) it is a feedback loop and it works when the loop is closed and 
  doesn't work when open


				  PROCEDURE

- Open the ISS (Image Stabilization System) loop before doing anything that 
  could go out of the normal range of the instrument because if the loop is 
  closed and the ranges are exceeded damage could be done

  To open the loop, 

  To close the loop,