SPACI score report for 1nl9 in ASTRAL 2.03:

PDB Entry: 1nl9
SPACI score: 0.35
AEROSPACI score: 0.35

Experiment type: XRAY
Resolution: 2.4
R-factor: 0.208
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.727
WCK2 WHAT_CHECK Ramachandran: -1.033
WCK3 WHAT_CHECK Chi angles: 0.284
WCK4 WHAT_CHECK Backbone: 0.393

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).