site          sitenum  datetime             Group           lat           lon          
site228       228      2015-01-06T02:48:00  LargeFish       -77.57418624  166.1589385  
site228       228      2015-01-06T02:48:00  Krill           -77.57419357  166.1585111  
site228       228      2015-01-06T02:48:00  WeakScatterers  -77.57423603  166.1590623