SPACI score report for 1aa5 in ASTRAL 2.08:

WARNING! The SPACI score for this entry is not valid. The R-factor is not available and an abitrary R-factor has been used. The WHAT_CHECK parameters for this entry could not be obtained, and poor results have been arbitrarily assumed.

PDB Entry: 1aa5
SPACI score: 0.92 (not valid)
AEROSPACI score: 0.92 (not valid)

Experiment type: XRAY
Resolution: 0.89
R-factor: 0.25
PCK1 PROCHECK Ramachandran: 4
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -15.116
WCK2 WHAT_CHECK Ramachandran: N/A
WCK3 WHAT_CHECK Chi angles: -9.71

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).