SPACI score report for 1sn9 in ASTRAL 1.69:

PDB Entry: 1sn9
SPACI score: 0.8
AEROSPACI score: 0.8

Experiment type: XRAY
Resolution: 1.2
R-factor: 0.19
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: 6.473
WCK2 WHAT_CHECK Ramachandran: 4.096
WCK3 WHAT_CHECK Chi angles: -0.27
WCK4 WHAT_CHECK Backbone: 2.707

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).