SPACI score report for 1l87 in ASTRAL 2.04:

PDB Entry: 1l87
SPACI score: 0.53
AEROSPACI score: 0.53

Experiment type: XRAY
Resolution: 1.8
R-factor: 0.165
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 2
PCK3 PROCHECK H-bonds: 1
WCK1 WHAT_CHECK Packing: -0.222
WCK2 WHAT_CHECK Ramachandran: -1.621
WCK3 WHAT_CHECK Chi angles: -1.749
WCK4 WHAT_CHECK Backbone: 0.136

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).