cruise_id  date_gmt  
AE1118     07222011  
AE1118     07232011  
AE1118     07242011  
AE1118     07252011  
AE1118     07262011  
AE1118     07272011  
AE1118     07282011  
AE1118     07292011  
AE1118     07302011  
AE1118     07312011  
AE1118     08012011  
AE1118     08022011  
AE1118     08032011