SPACI score report for 1i6l in ASTRAL 1.71:

PDB Entry: 1i6l
SPACI score: 0.5
AEROSPACI score: 0.5

Experiment type: XRAY
Resolution: 1.72
R-factor: 0.209
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.744
WCK2 WHAT_CHECK Ramachandran: 0.73
WCK3 WHAT_CHECK Chi angles: -0.016
WCK4 WHAT_CHECK Backbone: -3.074

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).