Dataset {
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[29073];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[29073];
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float32 /depth[21];
    Float64 /depth_time[21];
} cell-Normal.nc4;