SPACI score report for 1k8d in ASTRAL 2.08:

PDB Entry: 1k8d
SPACI score: 0.34
AEROSPACI score: 0.34

Experiment type: XRAY
Resolution: 2.3
R-factor: 0.222
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -0.578
WCK2 WHAT_CHECK Ramachandran: -1.391
WCK3 WHAT_CHECK Chi angles: -0.923
WCK4 WHAT_CHECK Backbone: 0.701

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).