SPACI score report for 1r24 in ASTRAL 1.55:

PDB Entry: 1r24
SPACI score: 0.11
AEROSPACI score: 0.11

Experiment type: XRAY
Resolution: 3.1
R-factor: 0.245
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 4
WCK1 WHAT_CHECK Packing: -3.629
WCK2 WHAT_CHECK Ramachandran: -3.84
WCK3 WHAT_CHECK Chi angles: -4.137
WCK4 WHAT_CHECK Backbone: -3.281

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).