demorest

import numpy as np
import astropy.coordinates as coord
import astropy.time
import astropy.units as u

# Can do this to get updated IERS B values into astropy
from astropy.utils import iers
from astropy.utils import data
iers_b = iers.IERS_B.open(data.download_file(iers.IERS_B_URL, cache=True))
iers_auto = iers.IERS_Auto.open()