The Data:
time         servo frequency

 45187.47                                  66.225 
 45187.86                                  196.078 
 45188.24                                  277.778 
 45188.63                                  392.157 
 45189.01                                  425.532 
 45189.4                                   487.805 
 0                                         0 
 0                                         0 
 0                                         0 
 0                                         0