refresh_ierstab

Astronomy.refresh_ierstab(url=None, force=False)

Updates the UT1-UTC offset table from ‘url’.

Deals with this warning from astropy: WARNING: Tried to get polar motions for times after IERS data is valid. Defaulting to polar motion from the 50-yr mean for those. If you need enough precision such that this matters (~<10 arcsec), you can download the latest IERS predictions.

:param url : not used :param force : not used :return: None