Dataset {
    Float64 /longitude_time[46];
    Float32 /depth[39];
    Float64 /depth_time[39];
    Float64 /time_fix[21];
    String /trajectory_id[15];
    Float32 /trajectoryNameLen[15];
    Float64 /latitude_fix[21];
    Float64 /longitude[46];
    Float64 /latitude[51];
    Float64 /latitude_fix_time[21];
    Float64 /longitude_fix[21];
    Float32 /NavChart/height_above_sea_floor[44180];
    Float64 /NavChart/height_above_sea_floor_time[44180];
    Float64 /longitude_fix_time[21];
    Float64 /latitude_time[51];
    Float64 /time_fix_time[21];
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[45012];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[45012];
} hotspot-Normal.nc4;