Cruise_ID  event         ev_type  cast  lon       lat      
OC415-4    200509011529  CTD      2     -69.239   29.765   
OC415-4    200509111759  CTD      20    -69.792   29.627   
OC415-4    200508310100  Sampler  1     -69.1059  29.8334  
OC415-4    200509010100  Sampler  2     -69.4015  29.7484  
OC415-4    200509010100  Sampler  2     -69.4423  29.7428  
OC415-4    200509020100  Sampler  3     -69.3841  29.7734  
OC415-4    200509020100  Sampler  3     -69.4877  29.7524  
OC415-4    200509030100  Sampler  4     -69.3713  29.6751  
OC415-4    200509030100  Sampler  4     -69.4029  29.6621  
OC415-4    nd            Sampler  7     -69.6623  29.6842  
OC415-4    nd            Sampler  7     -69.4324  29.7327  
OC415-4    nd            Sampler  8     -69.6381  29.9182  
OC415-4    nd            Sampler  9     -69.4900  29.8323