- When choosing terms be sure to watch existing terms so they
do not drop below a ~3:1 signal to noise ratio, including the
term you are adding. |
- Larger Tpoint models will give more accurate Polar Alignment
Information. Even changing one term on a small Tpoint model can
greatly affect what the Polar Alignment Information dialog box
states. |
- Watch the RMS and PSD numbers as you add individual terms.
If you do not gain at least 10-15%, do not use the term. |
- Be sure to add at least one harmonic term, located under "Suggested
Terms" within Tpoint. |
- Tpoint models of this depth are best used AFTER an iterative
process of polar alignment is used. Such a method does NOT use
Tpoint. |
- If you are unsure about your optics orthagonal status, do an
East and then West (separate) Tpoint model using 30-50 points.
These can take as little as 15 minutes each. If the data on the
East states a Polar Alignment shift in the opposite direction
as the data on the West states, it is a good indication that
you are not orthagonal. No system is dead on but the farther
off the system is, the greater it will hurt performance (long,
unguided exposures). You can also do this test during initial
polar alignment routine, that does not involve Tpoint. |
Please contact Dream
for more detailed information. |
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