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

Modification of the Bel-Robinson type energy-momentum