Models

class ska.tmlite.models.Station(*, interface: str, station_name: str, diameter: str, properties: Optional[MCCSProperties] = None, location: Optional[TelModelLocation] = None, fixed_delays: List[TelModelFixedDelays] = [], niao: float, long: Optional[str] = None, lat: Optional[str] = None, x: Optional[float] = None, y: Optional[float] = None, z: Optional[float] = None)

The schema for the SKA stations:

Parameters

• name – (str) an identifier for the station

• dish_diameter – (str) dish/stations size in meters

• long – (str) longitude [optional]

• lat – (str) latitude [optional]

• x – (float) Geocentric x

• y – (float) Geocentric y

• z – (float) Geocentric z

class ska.tmlite.models.LayOut(*, description: Optional[str] = None, reference: Optional[str] = None, comment: Optional[str] = None, revision: Optional[str] = None, telescope: str, coordinates: Optional[str] = None, units: Optional[str] = None, receptors: List[Station] = [])

The Schema for station layout

Parameters

• description – str identifier

• reference – str where did this come from (provinence?)

• comment – str

• revision – str

• telescope – str telescope name (dup)

• coordinates – str Coordinate frame (ITRF)

• units – str (meters etc

• antennas – Set[Station] = [] an array of Station

class ska.tmlite.models.RFI(*, description: str, freq_start: str, freq_stop: str)

RFI Schema

Parameters

• description – str identifier (what source etc)

• freq_start – str (Hz)

• freq_stop – str (Hz)

class ska.tmlite.models.SKA1Mid(*, layout: LayOut, static_rfi_mask: Optional[List[RFI]] = None)

Container item for the model for SKA1 Mid

Parameters

• layout – LayOut

• static_rfi_mask – Set[RFI] = []

class ska.tmlite.models.SKA1Low(*, layout: LayOut, static_rfi_mask: Optional[List[RFI]] = None)

Container item for the model for SKA1 Low

Parameters

• layout – LayOut

• static_rfi_mask – Set[RFI] = []

class ska.tmlite.models.Instruments(*, ska1_low: Optional[SKA1Low] = None, ska1_mid: Optional[SKA1Mid] = None)

Container item for the Instrumets

Parameters

• ska1_low – SKA1Low

• ska1_mid – SKA1Mid

class ska.tmlite.models.TModelLite(*, instrument: Instruments)

Container item for the whole model

Parameters

instrument – Instruments

class ska.tmlite.models.MCCSGeoJSON(*, type: str, name: str, crs: MCCSCrs, features: List[MCCSFeatures])

Container item for the GeoJSON file generated by MCCS. Ideally we would not have to add this. But it has been deemed necessary to demonstrate the reading in of this file format.

Currently,the schema is:

Parameters

• type – str

• name – str

• crs – MCCSCrs

• features – List[MCCSFeatures]

class ska.tmlite.models.MCCSCrs(*, type: str, properties: MCCSProperties)

The CRS items in the MCCS GeoJSON file

Parameters

• type – str

• properties – MCCSProperties

class ska.tmlite.models.MCCSFeatures(*, type: str, properties: MCCSProperties, geometry: MCCSGeometry)

The Feature carries the station information in the MCCSGeoJSON model

Parameters

• type – str

• properties – MCCSProperties

• geometry – MCCSGeometry

class ska.tmlite.models.MCCSGeometry(*, type: str, coordinates: List[float])

The MCCS Geometry object - this is what actually contains the location

Parameters

• type – str

• coordinates – List[float]

class ska.tmlite.models.MCCSProperties(*, name: str, nof_antennas: Optional[int] = None, antenna_type: Optional[str] = None, tpms: Optional[Set[int]] = None, station_num: Optional[int] = None)

The Properties Object - contains a description of the station

Parameters

• name – str

• nof_antennas – Optional[int] = None

• antenna_type – Optional[str] = None

• tpms – Optional[Set[int]] = None

• station_num – Optional[int] = None