Enumeration of the different tracker vector elements.
| Member | Value | Description |
|---|---|---|
| eNotUsed | -1 | The tracker vector is not used with this measurement type. |
| ePosOnly | 0 | The tracker vector contains position information only. |
| eVelOnly | 1 | The tracker vector contains velocity information only. |
| ePosVel | 2 | The tracker vector contains position and velocity information. |





