for x in range(1, len(new_t2), -1):
    if new_t2[x] == new_t2[x - 1]:
        new_t2.delete(x)
y2.delete(x)
ser1 = pd.Series(y1, index=t1)
ser2 = pd.Series(y2, index=new_t2)
df = pd.concat((ser1, ser2), axis=1)
df.columns = 'Y1', 'Y2'
print(df)
Combine two Pandas dataframes, resample on one time column, interpolate