SPACI score report for 1n9b in ASTRAL 1.65:

PDB Entry: 1n9b
SPACI score: 1.14
AEROSPACI score: 1.14

Experiment type: XRAY
Resolution: 0.9
R-factor: 0.125
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -0.271
WCK2 WHAT_CHECK Ramachandran: 0.723
WCK3 WHAT_CHECK Chi angles: 1.595
WCK4 WHAT_CHECK Backbone: 0.022

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).