SPACI score report for 1ydi in ASTRAL 2.07:

PDB Entry: 1ydi
SPACI score: 0.53
AEROSPACI score: 0.53

Experiment type: XRAY
Resolution: 1.8
R-factor: 0.181
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 0.58
WCK2 WHAT_CHECK Ramachandran: 1.376
WCK3 WHAT_CHECK Chi angles: -0.233
WCK4 WHAT_CHECK Backbone: 1.346

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).