Dataset {
    Int32 /DeadReckonUsingMultipleVelocitySources/velocity_source[15291];
    Float64 /DeadReckonUsingMultipleVelocitySources/velocity_source_time[15291];
    Float32 /trajectoryNameLen[15];
    String /trajectory_id[15];
    Float64 /depth_time[694];
    Float64 /time_fix[3];
    Float32 /depth[694];
    Float64 /time_fix_time[3];
} cell-Normal.nc4;