treatment  lat     lon       day  
T0         -75.00  177.36    0    
HTHF       -75.00  177.36    4    
HTHF       -75.00  177.36    7    
HTLF       -75.00  177.36    4    
HTLF       -75.00  177.36    7    
LTHF       -75.00  177.36    4    
LTHF       -75.00  177.36    7    
LTLF       -75.00  177.36    4    
LTLF       -75.00  177.36    7