SPACI score report for 1fnw in ASTRAL 1.55:

PDB Entry: 1fnw
SPACI score: 0.16
AEROSPACI score: 0.16

Experiment type: XRAY
Resolution: 3.9
R-factor: 0.213
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -4.169
WCK2 WHAT_CHECK Ramachandran: -4.252
WCK3 WHAT_CHECK Chi angles: -0.393
WCK4 WHAT_CHECK Backbone: -1.009

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).