| Parameter Name | Units | Type | Default | Description | 
| L | double | 0.0 | length | |
| DX | double | 0.0 | misalignment | |
| DY | double | 0.0 | misalignment | |
| WEIGHT | double | 1 | weight in correction | |
| TILT | double | 0.0 | rotation about longitudinal axis | |
| CALIBRATION | double | 1 | calibration factor for readout | |
| ORDER | long | 0 | 
matrix order | |
| READOUT | STRING | NULL | rpn expression for readout (actual position supplied in variable x) |