Indicates data source of Tracking Service object.
| Constant | Value | Description |
|---|---|---|
| sourceDynamic | 0 | Object Data from a dynamic Tracking Message Source. |
| sourceShapeFile | 1 | Object Data from an ShapeFile Geodatabase. |
| sourceLocalGeoDatabase | 2 | Object Data from an Local Geodatabase. |
| sourceSDE | 3 | Object Data from an SDE Geodatabase. |