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using_spiral_search [2009/05/21 19:49] (current)
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 +====Using Spiral Search Feature====
 +This feature is useful when the required object is not within the FOV.
 +
 +{{wiki:​slewcontrolsextraspiral2_200905.gif}}
 +
 +  *Click and hold the [Spiral] button. ​ The mount will start a spiral outwards search until you release the [Spiral] button.
 +  *Alternatively press and hold button [1] on the game controller (unless you have defined another button for spiral search). Button [1] is spiral by default.
 +**Hint: **Since EQMOD starts a new spiral search from the current location whenever you press and hold the [Spiral] button, you can optimize the slew to the object by uses successive spiral searches. ​
 +
 +  -Press and hold the [Spiral] button (or button [1] on the game controller).
 +  -After the spiral has been generated for a number of cycles (getting closer and closer to the object), release the button when the spiral is on the side closest to the object.
 +  -Press and hold the [Spiral] button (or button [1] on the game controller),​ starting a new spiral.
 +  -Repeating the above sequence gives you a method of zeroing in on the object since each spiral starts off relatively small.
 +**Notes: **
 +
 +  -The slider can be adjusted to control how much the mount slews on each leg of the spiral.
 +  -The spiral search will always follow the current tracking state of the mount. That means you can  implement the spiral slew with '​tracking on' and EQMOD will implement the slew with sidereal/​Lunar/​Polar/​custom drift compensation.
 +  -EQMOD will not implement any compensation if the spiral slew is activated and the mount is not tracking.\\  ​
 +**Using Spiral Search Feature**
 +
 +
 +
 +Here are sample slew patterns when there is no sidereal tracking and with sidereal tracking with small and large microstep settings. The images were provided by Andrew Wall using a Canon 400D on an EQ6 mount using version 109e.
 +
 +
 +
 +This image used step size of 1029 with no tracking:
 +
 +{{wiki:​spiralsearch_notrack_s.jpg}}
 +
 +
 +
 +This image used step size 4000 with tracking:
 +
 +{{wiki:​spiralsearch4000_109f_s.jpg}}
 +
 +
 +
 +**Using Spiral Search Feature**
 +
 +
 +
 +This image used step size 1020 with tracking:
 +
 +{{wiki:​spiraltest1020_v109f_s.jpg}}
 +
  
/home/welshdra/public_html/eqmod/data/pages/using_spiral_search.txt ยท Last modified: 2009/05/21 19:49 (external edit)
 
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