I have two Pandas dataframes. One is called “swepam” and the other is called “ssn_monthly_mean.” Both dataframes have a column of different numpy.float64 objects and a column of Datetimes as pandas._libs.tslibs.timestamps.Timestamp objects. Both datasets span 24 years and the data in both dataframes (proton_speed for swepam and ssn for ssn_monthly_mean) was downsampled from a higher resolution to being monthly averaged.