Errors

• Put the poisson error curve on the plot
• Look at the relative fluctuation compared to the total number in histogram
  • where
  • for multinomial distribution
  • and
  • compare to rms of

Mapping

• make a fit parameter
• change degrees into radians, and check all other units

Fitting

• lower the width of the circle radius for fit
• find the positional spread of fibres
• compare positions of spectral lines to real values