Unpark from: the scope position from which to unpark if the mount needs to be initialized.
The mount will only be initialized when Right Ascension = 0 and Declination = 90°. It is highly recommended to leave this setting as "Last Parked".
Note 1: The Mach 2 mount always knows the mount position, even when moved with the clutches released, so the only choice will be Last Parked.
Note 2: If you do not wish to unpark the mount at start up then select "Don't Unpark".
Park To: the position to which the mount will be parked when an ASCOM Park command is received. Astro-Physics mounts have three Park positions. Please consult the mount's manual for descriptions of the park positions.
In addition to the three standard park positions you can define one custom park position at any Alt/Az coordinate. Remember that Astro-Physics mounts do NOT require parking at the end of a session!
IMPORTANT: If you have "Unpark From" set to anything other than "Last Parked", when you unpark the mount from an ASCOM client application a popup will come up to confirm that the mount is actually in that position. This is usually undesirable because human intervention (you, most likely!) will be required to continue. This is a safety precaution.
For instance, here is what could happen if the popup did not warn you -- say you parked to "Park 1" and had mistakenly had the driver set to unpark from "Park 3". Then, the mount would be initialized to the wrong position the next time it is initialized. That is, unless you physically moved the mount to Park 3 first.
The popup is warning you to make sure the mount is in the correct position. But, "Unpark from Last Parked position" uses the park position stored in the mount's non-volatile ram the last time it was parked or shut off. No popup is needed in this case, so ASCOM clients will continue even when unattended. So, it is highly recommended to configure "unpark From" to Last Parked.
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