SPACI score report for 1vbw in ASTRAL 2.04:

PDB Entry: 1vbw
SPACI score: 1.11
AEROSPACI score: 1.11

Experiment type: XRAY
Resolution: 0.93
R-factor: 0.114
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.466
WCK2 WHAT_CHECK Ramachandran: -0.39
WCK3 WHAT_CHECK Chi angles: 1.024
WCK4 WHAT_CHECK Backbone: 1.008

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).