Angular Correction Offset.
[Visual Basic .NET] Public Property AngularCorrectionOffset As Double
[C#] public double AngularCorrectionOffset {get; set;}
Product Availability
Available with ArcGIS Desktop.
Remarks
AngularCorrectionOffset determines the amount of correction applied to each entered angular value. The offset is specified in radians. This property may be accessed at any time; it is only applied when the IEditProperties2::UseGroundToGrid is True. The default value is 0 (no correction).