SPACI score report for 1r9z in ASTRAL 1.71:

PDB Entry: 1r9z
SPACI score: 0.74
AEROSPACI score: 0.74

Experiment type: XRAY
Resolution: 1.32
R-factor: 0.166
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.509
WCK2 WHAT_CHECK Ramachandran: -0.147
WCK3 WHAT_CHECK Chi angles: 2.096
WCK4 WHAT_CHECK Backbone: -4.359

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).