Counts based on variable 'epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/feeps/srvy/l2/electron/2015/09/mms1_feeps_srvy_l2_electron_20150901000000_v7.1.1.cdf. The most common cadence, 2418976000 [ns] = PT2.418976S, occurred for 5.3649% of the 1271 timesteps. 

Counts based on variable 'epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/feeps/srvy/l2/electron/2025/03/mms1_feeps_srvy_l2_electron_20250327000000_v7.5.1.cdf. The most common cadence, 2458944000 [ns] = PT2.458944S, occurred for 16.3166% of the 5733 timesteps. 