SPACI score report for 2ht3 in ASTRAL 2.08:

PDB Entry: 2ht3
SPACI score: 0.13
AEROSPACI score: 0.13

Experiment type: XRAY
Resolution: 3.3
R-factor: 0.254
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 2
WCK1 WHAT_CHECK Packing: -1.402
WCK2 WHAT_CHECK Ramachandran: -5.488
WCK3 WHAT_CHECK Chi angles: -5.587
WCK4 WHAT_CHECK Backbone: -1.076

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).