SPACI score report for 1k61 in ASTRAL 2.08:

PDB Entry: 1k61
SPACI score: 0.42
AEROSPACI score: 0.42

Experiment type: XRAY
Resolution: 2.1
R-factor: 0.221
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 1
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -0.64
WCK2 WHAT_CHECK Ramachandran: 0.041
WCK3 WHAT_CHECK Chi angles: -0.193
WCK4 WHAT_CHECK Backbone: 1.846

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).