SPACI score report for 1a8d in ASTRAL 1.67:

PDB Entry: 1a8d
SPACI score: 0.57
AEROSPACI score: 0.57

Experiment type: XRAY
Resolution: 1.57
R-factor: 0.1867
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.947
WCK2 WHAT_CHECK Ramachandran: -0.472
WCK3 WHAT_CHECK Chi angles: -1.179
WCK4 WHAT_CHECK Backbone: -4.912

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).