Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms4/edi/srvy/l2/efield/2015/09/mms4_edi_srvy_l2_efield_20150902_v1.6.2.cdf. The most common cadence, 4562412864 [ns] = PT4.562413S, occurred for 0.4717% of the 1 timesteps. 

Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms4/edi/srvy/l2/efield/2022/10/mms4_edi_srvy_l2_efield_20221007_v1.6.0.cdf. The most common cadence, 4325073792 [ns] = PT4.325074S, occurred for 0.0698% of the 1 timesteps. 