SPACI score report for 1rqw in ASTRAL 1.67:

PDB Entry: 1rqw
SPACI score: 0.96
AEROSPACI score: 0.96

Experiment type: XRAY
Resolution: 1.05
R-factor: 0.127
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.006
WCK2 WHAT_CHECK Ramachandran: -0.402
WCK3 WHAT_CHECK Chi angles: -0.836
WCK4 WHAT_CHECK Backbone: -3.805

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).