SPACI score report for 1a0a in ASTRAL 2.07:

PDB Entry: 1a0a
SPACI score: 0.11
AEROSPACI score: 0.11

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.23
PCK1 PROCHECK Ramachandran: 3
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -6.011
WCK2 WHAT_CHECK Ramachandran: -8.749
WCK3 WHAT_CHECK Chi angles: -7.62
WCK4 WHAT_CHECK Backbone: -8.23

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).