Paramount User Guide
125
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Axis Parameters
Description
The general rule of thumb is that the fewer number of corrections to the
mount’s position that are made during autoguided exposures the better
the resulting star profile. So, a guide rate of fifty-percent of sidereal rate
(the default setting) is the optimal value to achieve this goal.
Maximum Speed (%)
The percentage of the mount's maximum slew rate that is used to slew
the mount.
Track Rate
The sidereal tracking rate in control system tracking units.
Min Position Limit
The Bisque TCS will not drive the motors beyond this minimum limit
(decelerating stop).
Max Position Limit
The Bisque TCS will not drive the motors beyond this maximum limit
(decelerating stop).
Joystick Center
The calibrated center position of the joystick.
Homing Parameters
Relative Home Sensor
Position
The
relative
home sensor position is computed using both the mount’s
fixed homing sensor location
and
the equatorial coordinates supplied to
TheSkyX Professional Edition
when the mount was synchronized on a
star.
For a perfect mount that has no optical or mechanical misalignments,
mechanical flexures or polar alignment errors, the relative home position
would identically match the absolute mechanical home position. This is
never the case. Misalignments in the mount’s mechanical axis and the
telescope’s optical axis, for example, always introduce telescope
pointing errors so there will always be a difference between the relative
and absolute home position after synchronization.
When the mount is synchronized to a known star, the “relative location
of the home position” changes based on the pointing error introduced
by the mechanical and optical misalignments.
When the relative and absolute home sensor positions are equal, it
means the mount has not yet been synchronized on a star.
After synchronizing the mount, choose the
Get All Bisque TCS
Parameters
command from the
Commands
pop-up menu on the
Parameters
tab (see page 131) to retrieve the control system’s current
