site          sitenum  datetime             Group           lat           lon          
site128       128      2014-12-23T01:32:00  Group5          -77.57365424  166.1594762  
site128       128      2014-12-23T01:32:00  LargeFish       -77.57366281  166.1638141  
site128       128      2014-12-23T01:32:00  Krill           -77.57373723  166.159366   
site128       128      2014-12-23T01:32:00  WeakScatterers  -77.57373337  166.1607594