debian-skyfield-data/skyfield_data/expiration_data.py

import datetime

EXPIRATIONS = {'de421.bsp': datetime.date(2053, 10, 8), 'deltat.data': datetime.date(2020, 6, 1), 'deltat.preds': datetime.date(2021, 1, 1), 'Leap_Second.dat': datetime.date(2020, 7, 28)}