site          sitenum  datetime             Group           lat           lon          
site101       101      2014-12-03T22:48:00  Silverfish      -77.58199814  165.8165004  
site101       101      2014-12-03T22:48:00  Krill           -77.58263511  165.8143395  
site101       101      2014-12-03T22:48:00  WeakScatterers  -77.58219428  165.8145491