...

asibfm700/asibfm700_configfile.h

@@ -394,6 +394,10 @@ static auto Asibfm700MountConfigDefaults = std::make_tuple(
     // minimum time in millisecs between two successive tracking corrections
     simple_config_record_t{"trackingCycleInterval", std::chrono::milliseconds(300)},
 
+    // maximal valid target-to-mount distance for tracking process (arcsecs)
+    // if current distance is greater than assume current mount coordinate as target point
+    simple_config_record_t{"trackingMaxCoordDiff", 20.0},
+
 
     /*    prohibited zones    */
 
@@ -596,6 +600,8 @@ protected:
 
         // slew and track parameters
 
+        static constexpr double arcsecs2rad = std::numbers::pi / 180.0 / 3600.0;  // arcseconds to radians
+
         movingModelParams.telemetryTimeout =
             getValue<decltype(movingModelParams.telemetryTimeout)>("telemetryTimeout").value_or({});
 
@@ -606,10 +612,10 @@ protected:
             getValue<decltype(movingModelParams.updatingPZoneInterval)>("updatingPZoneInterval").value_or({});
 
         movingModelParams.slewToleranceRadius =
-            getValue<decltype(movingModelParams.slewToleranceRadius)>("slewToleranceRadius").value_or({});
+            getValue<decltype(movingModelParams.slewToleranceRadius)>("slewToleranceRadius").value_or({}) * arcsecs2rad;
 
         movingModelParams.adjustCoordDiff =
-            getValue<decltype(movingModelParams.adjustCoordDiff)>("adjustCoordDiff").value_or({});
+            getValue<decltype(movingModelParams.adjustCoordDiff)>("adjustCoordDiff").value_or({}) * arcsecs2rad;
 
         movingModelParams.adjustCycleInterval =
             getValue<decltype(movingModelParams.adjustCycleInterval)>("adjustCycleInterval").value_or({});
@@ -622,6 +628,9 @@ protected:
         movingModelParams.trackingCycleInterval =
             getValue<decltype(movingModelParams.trackingCycleInterval)>("trackingCycleInterval").value_or({});
 
+        movingModelParams.trackingMaxCoordDiff =
+            getValue<decltype(movingModelParams.trackingMaxCoordDiff)>("trackingMaxCoordDiff").value_or({}) *
+            arcsecs2rad;
 
         // PCM data