SPACI score report for 2es9 in ASTRAL 2.07:

PDB Entry: 2es9
SPACI score: 0.42
AEROSPACI score: 0.42

Experiment type: XRAY
Resolution: 2
R-factor: 0.242
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -1.19
WCK2 WHAT_CHECK Ramachandran: -0.119
WCK3 WHAT_CHECK Chi angles: -0.016
WCK4 WHAT_CHECK Backbone: 1.501

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).