SPACI score report for 1iby in ASTRAL 1.61:

PDB Entry: 1iby
SPACI score: 0.55
AEROSPACI score: 0.55

Experiment type: XRAY
Resolution: 1.65
R-factor: 0.186
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -0.583
WCK2 WHAT_CHECK Ramachandran: -0.108
WCK3 WHAT_CHECK Chi angles: 0.56
WCK4 WHAT_CHECK Backbone: -0.148

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).