SPACI score report for 1vf6 in ASTRAL 1.67:

PDB Entry: 1vf6
SPACI score: 0.41
AEROSPACI score: 0.41

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.242
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: 3.852
WCK2 WHAT_CHECK Ramachandran: 1.778
WCK3 WHAT_CHECK Chi angles: 0.363
WCK4 WHAT_CHECK Backbone: 0.121

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).