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ITelescopeV3TrackingRate Property

The current tracking rate of the telescope's sidereal drive

Namespace:  ASCOM.DeviceInterface
Assembly:  ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: 3c9121baba46811fe6e53a58a05935662261416d
DriveRates TrackingRate { get; set; }

Property Value

Type: DriveRates
PropertyNotImplementedExceptionIf TrackingRate Write is not implemented.
InvalidValueExceptionIf an invalid drive rate is set.

TrackingRate Read must be implemented and must not throw a PropertyNotImplementedException.

TrackingRate Write can throw a PropertyNotImplementedException.

Supported rates (one of the DriveRates values) are contained within the TrackingRates collection. Values assigned to TrackingRate must be one of these supported rates. If an unsupported value is assigned to this property, it will raise an error. The currently selected tracking rate can be further adjusted via the RightAscensionRate and DeclinationRate properties. These rate offsets are applied to the currently selected tracking rate. Mounts must start up with a known or default tracking rate, and this property must return that known/default tracking rate until changed.

If the mount's current tracking rate cannot be determined (for example, it is a write-only property of the mount's protocol), it is permitted for the driver to force and report a default rate on connect. In this case, the preferred default is Sidereal rate.

This is only available for telescope InterfaceVersions 2 and 3

See Also