SPACI score report for 1ahw in ASTRAL 2.06:

PDB Entry: 1ahw
SPACI score: 0.18
AEROSPACI score: 0.18

Experiment type: XRAY
Resolution: 3
R-factor: 0.217
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.057
WCK2 WHAT_CHECK Ramachandran: -4.214
WCK3 WHAT_CHECK Chi angles: -5.028
WCK4 WHAT_CHECK Backbone: -1.277

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).