SPACI score report for 1igb in ASTRAL 1.55:

PDB Entry: 1igb
SPACI score: 0.42
AEROSPACI score: 0.42

Experiment type: XRAY
Resolution: 2.3
R-factor: 0.16
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.486
WCK2 WHAT_CHECK Ramachandran: -1.128
WCK3 WHAT_CHECK Chi angles: -0.437
WCK4 WHAT_CHECK Backbone: 0.025

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).