SPACI score report for 1hwu in ASTRAL 1.71:

PDB Entry: 1hwu
SPACI score: 0.39
AEROSPACI score: 0.39

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.203
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 2.93
WCK2 WHAT_CHECK Ramachandran: -1.244
WCK3 WHAT_CHECK Chi angles: -2.945
WCK4 WHAT_CHECK Backbone: -2.746

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).