Signal path reference system types.
| Member | Value | Description |
|---|---|---|
| eCrdnSignalPathReferenceSystemUseAccessDefault | -1 | Use Access default system. |
| eCrdnSignalPathReferenceSystemCentralBodyInertial | 0 | Use central body inertial system. |
| eCrdnSignalPathReferenceSystemSolarSystemBarycenter | 1 | Use solar system barycenter system. |
| eCrdnSignalPathReferenceSystemCustom | 2 | User will specify a system. |





