SPACI score report for 1tnf in ASTRAL 1.75:

PDB Entry: 1tnf
SPACI score: 0.18
AEROSPACI score: 0.18

Experiment type: XRAY
Resolution: 2.6
R-factor: 0.23
PCK1 PROCHECK Ramachandran: 2
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -2.854
WCK2 WHAT_CHECK Ramachandran: -4.892
WCK3 WHAT_CHECK Chi angles: -6.214
WCK4 WHAT_CHECK Backbone: -4.555

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).