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The Western Goto Limit determines how far pass the meridian that the
Gemini-2 will do a flip. It is calculated like this. Note
that the Meridian is at 90°. The point of Meridian Flip = Western
Safety Limit - Goto Limit. An example is if you have the Western
Safety limit set to 100° - The Western GoTo limit of 2.5°
(default) you end up with a point of flip of 97.5°, or 7.5
degrees past the meridian. Any target selected that is past this
will do a meridian flip. Any target on the East side (Northern
Hemisphere) will not do a meridian flip. 100° - 90° = 10° - 2.5° = 7.5°. or 90° + 7.5° = 97.5° (point of flip) Note: Safety Limits may not take effect until you power down and back up. That has been my experience, however the writer of the firmware says they take effect when set. |