{"columns":["dive","ascent_dt_epoch","ascent_dt_str","ascent_vac0","ascent_vac1","descent_dt_epoch","descent_dt_str","descent_vac0","descent_vac1","drift_dt_epoch","drift_dt_str","drift_vac0","drift_vac1","surface_dt_epoch","surface_dt_str","surface_vac0","surface_vac1"],"data":[[-9,-1,"",null,null,-1,"",null,null,-1,"",null,null,-1,"",null,null],[-10,-1,"",null,null,-1,"",null,null,-1,"",null,null,-1,"",null,null],[-11,-1,"",null,null,-1,"",null,null,-1,"",null,null,-1,"",null,null],[0,-1,"",null,null,-1,"",null,null,-1,"",null,null,-1,"",null,null]]}