import pandas as pd
filename = 'gd1_candidates.hdf5'
candidate_df = pd.read_hdf(filename, 'candidate_df')
import matplotlib.pyplot as plt
x = candidate_df['phi1']
y = candidate_df['phi2']
plt.plot(x, y, 'ko', markersize=0.3, alpha=0.3)
plt.xlabel('ra (degree GD1)')
plt.ylabel('dec (degree GD1)');
