Mock Dish Leafnode Device

Introduction

Mock implementation of the SKA TMC Dish Leafnode Tango Device provided by https://gitlab.com/ska-telescope/ska-tmc/ska-tmc-dishleafnode.

Usage

This mock implementation when in the ON state will simulate mocked attributes listed below of the real device using a mock dataset. Mocking must be started using the Start command and may be stopped (for restart) using the Stop command.

Additionally, the device will automatically transition to the Off state when at the end of the mock data stream.

For API usage see ska_sdp_mock_dish_devices.MockDishLeafnode.

States

State	Description
OFF	Device is initialized and is not simulating
ON	Attributes are being continuously simulated from mock data by the device

Properties

Property	Type	Values	Description
mock_desired_paths	String	‘’{“1”: “mnt/data/pointings.hdf”}’`	Json mapping of scan id to a path PointingTable collections in HDF5 format for desiredPointing
mock_offset_paths	String	‘’{“1”: “mnt/data/pointings.hdf”}’`	Json mapping of scan id to a path of PointingTable collections in HDF5 format for sourceOffset
antenna_id	Int32	0	Antenna ID within the pointing data
time_scale	Float	1.0	Scale factor for the timing interval pointings are read

Commands

Command	Argument type	Return type	Action
Scan	int	None	Set device state to ON
EndScan	None	None	Set device state to OFF

Attributes

Attribute	Type	Format	Values	Description
desiredPointing	Float64	SPECTRUM[3]	[Offset since Epoch, az, el]	Marks the dish commanded pointing direction in radians for a corresponding timestamp.

Note

For a full list of planned attributes see https://gitlab.com/ska-telescope/ska-sim-dishmaster/-/blob/master/src/ska_sim_dishmaster/dish_master.fgo