The Data:
time         servo frequency

 45250.69                                  217.391 
 45251.08                                  357.143 
 45251.46                                  434.783 
 45251.85                                  465.116 
 45252.23                                  476.19 
 45252.61                                  487.805 
 0                                         0 
 0                                         0 
 0                                         0 
 0                                         0