SPACI score report for 1a0i in ASTRAL 1.75:

PDB Entry: 1a0i
SPACI score: 0.26
AEROSPACI score: 0.26

Experiment type: XRAY
Resolution: 2.6
R-factor: 0.222
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.372
WCK2 WHAT_CHECK Ramachandran: -3.907
WCK3 WHAT_CHECK Chi angles: -4.237
WCK4 WHAT_CHECK Backbone: -1.954

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).