SPACI score report for 3w24 in ASTRAL 2.06:

PDB Entry: 3w24
SPACI score: 0.72
AEROSPACI score: 0.72

Experiment type: XRAY
Resolution: 1.35
R-factor: 0.175
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.188
WCK2 WHAT_CHECK Ramachandran: -0.301
WCK3 WHAT_CHECK Chi angles: 1.683
WCK4 WHAT_CHECK Backbone: 3.132

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).