  For describing the non-negative gravitational energy-momentum in terms of a
pure Bel-Robinson type energy-momentum in a quasilocal 2-surface, both the
Bel-Robinson tensor $B$ and tensor $V$ are suitable. We found that this
Bel-Robinson type energy-momentum can be modified such that it satisfies the
Lorentz covariant, future pointing and non-spacelike properties. We find that
these particular energy-momentum properties can be obtained from (i): $B$ or
$V$ plus a tensor $S$ in a quasilocal small cube limit, or (ii): directly
evaluating the energy-momentum of $B$ or $V$ in a quasilocal small box region.
