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PierSide Enumeration

The pointing state of the mount

Namespace:  ASCOM.DeviceInterface
Assembly:  ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: 3c9121baba46811fe6e53a58a05935662261416d
public enum PierSide
  Member nameValueDescription
pierEast0 Normal pointing state - Mount on the East side of pier (looking West)
pierUnknown-1 Unknown or indeterminate.
pierWest1 Through the pole pointing state - Mount on the West side of pier (looking East)

Pier side is a GEM-specific term that has historically caused much confusion. As of Platform 6, the PierSide property is defined to refer to the telescope pointing state. Please see SideOfPier for much more information on this topic.

In order to support Dome slaving, where it is important to know on which side of the pier the mount is actually located, ASCOM has adopted the convention that the Normal pointing state will be the state where the mount is on the East side of the pier, looking West with the counterweights below the optical assembly.

Only used with telescope interface versions 2 and later.

See Also