Layer Estimates:

Layer: ZDataDiffSpatialRef (ID:0)
Count: 0
Extent:

XMin: -16395916.5102413
YMin: -10018753.6713946
XMax: 16395916.5102413
YMax: 10018753.6713946
Spatial Reference: 54042 (54042)
Vertical Spatial Reference: 105798 (105798)