Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms4/edp/srvy/l2/hfesp/2015/09/mms4_edp_srvy_l2_hfesp_20150901_v0.4.0.cdf. The most common cadence, 16000196992 [ns] = PT16.000197S, occurred for 5.2056% of the 281 timesteps. 

Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms4/edp/srvy/l2/hfesp/2025/03/mms4_edp_srvy_l2_hfesp_20250327_v0.4.2.cdf. The most common cadence, 16000203008 [ns] = PT16.000203S, occurred for 2.9826% of the 161 timesteps. 