event  cast  cycle  date      event_lat  event_lon   depth  sample  nitrate     NO3_uptake  
17     3     1      06242010  9.72107    -86.99822   2      1-1     0.146640    0.093441    
17     3     1      06242010  9.72107    -86.99822   12     1-2     0.117393    0.063908    
17     3     1      06242010  9.72107    -86.99822   20     1-3     0.080863    0.020965    
17     3     1      06242010  9.72107    -86.99822   30     1-4     0.332157    0.160877    
17     3     1      06242010  9.72107    -86.99822   40     1-5     21.211981   0.004738    
17     3     1      06242010  9.72107    -86.99822   55     1-6     28.747479   0.007466    
17     3     1      06242010  9.72107    -86.99822   70     1-7     30.233460   0.011260    
17     3     1      06242010  9.72107    -86.99822   90     1-8     31.627634   0.015931