Software Bisque Paramount MX User Manual page 98

Paramount MX User Guide
4. Click the Open Tracking Log button.
5. Select the tracking log file and click Open. The "raw" periodic error data shown on
Figure 44. Your results will vary, but the noisy-looking data is normal. For this
example, each pixel of motion recorded in the tracking log equates to one arcsecond
of error. The maximum and minimum error values are displayed on the right side of
the graph.
5. Enter the image scale of your optical system in arcseconds per pixel. If you do not
know the scale, use TheSkyX Professional Edition's Image Link to determine this value.
6. Turn on the PEC Data was Collected when Telescope was Pointing West checkbox if
the tracking log data was collected using a star on the west of the meridian. This
information is needed to determine the phase of the error. Turning this checkbox on
when the mount was pointing to the east while recording the tracking log results in a
"doubling" of the periodic error. So, if the periodic error is higher after applying PEC,
chances are this is the cause. Simply turn off the check box, and proceed with the
next step.
7. Click the Fit button. The PEC Table graph is updated with the optimal periodic error
curve for your mount.
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Figure 44: Graph of tracking log data.