site          sitenum  datetime             Group           lat           lon          
site045       45       2014-12-02T00:08:00  Silverfish      -77.630191    165.0610853  
site045       45       2014-12-02T00:08:00  Krill           -77.63021327  165.0611413  
site045       45       2014-12-02T00:08:00  WeakScatterers  -77.63020494  165.0611251