Source code for low_comm_tools.constants

from __future__ import annotations

from itertools import product

import astropy.units as u
from astropy.coordinates import EarthLocation

# SKA-Low coarse channel width

[docs]
COARSE_CHAN_WIDTH: u.Quantity[u.MHz] = 400 * u.MHz / 512


# Assumed fibre cable index of refraction

[docs]
FIBRE_REFRACTIVE_INDEX = 1.46


# Set the location of SKA-Low
# This is the location of C1

[docs]
SKA_LOW_LOCATION = EarthLocation(
    lat=-26.826161995090644 * u.deg,
    lon=116.7656960036497 * u.deg,
    height=347.0376321554915 * u.m,
)



[docs]
ELEMENT_POLS = ("X", "Y")


[docs]
CORRELATION_POLS = tuple(a + b for a, b in product(ELEMENT_POLS, repeat=2))