<jupyter_start><jupyter_text>Observing Quiz<jupyter_code>import numpy as np

import astropy.units as u
from astropy.time import Time
import pytz

from astropy.coordinates import SkyCoord
from astroplan import Observer, FixedTarget
#import warnings
#warnings.filterwarnings('ignore', category=Warning)

from astroplan import download_IERS_A
download_IERS_A()

#from astroplan import get_IERS_A_or_workaround
#get_IERS_A_or_workaround()<jupyter_output><empty_output>
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{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '213507', 'license': 'MIT', 'n_tokens_mistral': 162, 'n_tokens_neox': 159, 'n_words': 38, 'path': 'Observing_QUIZ.ipynb', 'repo_name': 'UWashington-Astro300/Astro300-W20', 'size': '464'}