2.3.1 spase://CNES/NumericalData/CDPP-AMDA/Cluster/Cluster4/EFW/clust4-pot-spin 4 sec (spin) Cluster 4 Spacecraft Potential (L3) 2016-10-16T11:41:44Z L3 Spacecraft potential (4 sec resolution) is normally the average potential of all available probes, measured relative to the spacecraft. If all four probes are available, the average is done over all 4 probes. If only two or three probes are available, the average is done over 2 opposing probes ( P1 and P, or P3 and P4). If only two non-opposing probes are available (e.g. P2 and P3), this quantity is the value of one of the probes. If only one probe is available, this quantity is the value of that probe. The probes used are given by the parameter P_probes. When moderate high-bias saturation is detected on one of the probes (indicated by bit 14 in the P_bitmask), the average over 4 seconds is replaced by a maximum over 4 seconds to avoid errors resulting from the resulting spikes; also the data quality is lowered for such intervals. The individual probe potentials are available in the ancillary data PrincipalInvestigator: Prof. Mats Andre spase://CNES/Person/Mats.Andre PrincipalInvestigator ESA web page http://www.cosmos.esa.int/web/csa/documentation This site contains EFW documentation NSSDC Master Catalog listing for Cluster II Samba Electric Field and Waves (EFW) http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=2000-045A-08 This site provides information concerning the Cluster II Samba Electric Field and Waves Instrument. c4-efw-pot PartOf s/c potential spase://SMWG/Repository/CNES/CDPP-AMDA Online Open AMDA at CDPP http://amda.cdpp.eu NetCDF CSA Calibrated C4_CP_EFW_L3_P Calibrated spase://CNES/Instrument/CDPP-AMDA/Cluster4/EFW ElectricField Waves.Passive 2001-01-01T00:00:02Z 2018-06-30T23:59:58Z PT4S Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosphere.Polar Earth.Magnetosphere.RadiationBelt Earth.NearSurface.AuroralRegion Earth.NearSurface.Ionosphere Earth.NearSurface.Plasmasphere Earth.NearSurface.PolarCap Heliosphere.NearEarth 4 second magnetosphere auroral region polar cap cusp bow shock solar wind magnetosheath Cluster magnetotail lobe s/c pot c4_potspin Probe potential, Relative to Spacecraft at spin time resolution (4s) phys.potential;phys.elecField;instr.obsty PT4S V 1.0>V TimeSeries U_probe_sc -60 0 -75 25 -1.0000e+9 Scalar Potential