2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/Cluster-Rumba/EDI/PrimeParameter/PT4S NASA NumericalData Cluster-Rumba Prime Parameter Electron Drift Instrument (EDI) Data Cluster 1 Prime Parameter EDI data https://doi.org/10.48322/3cp4-n849 2025-12-04T13:29:02Z 2021-04-27T15:38:11Z Only known prior ReleaseDate of the metadata 2025-11-14T16:01:56Z Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB 2025-12-04T13:29:02Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB This instrument (EDI: Electron Drift Instrument) measures the drift of a weak beam of test electrons that, when emitted in certain directions, return to the spacecraft after one gyration. This drift is related to the electric field and the gradient in the magnetic field, and these quantities can, by the use of different electron energies, be determined separately. The fundamental time step to determine the new parameters and direct the beams and the detectors is 2 ms. Inter-experiment links include: magnetic field information from FGM and STAFF, a blanking pulse received from WHISPER to warn of possible interference from that active experiment, and a similar blanking pulse sent to PEACE when the EDI electron beam could interfere with the PEACE electron measurement. For more details of the Cluster mission, the spacecraft, and its instruments, see the report Cluster: mission, payload and supporting activities, March 1993, ESA SP-1159, and the included article The Electron Drift Instrument for Cluster, by G. Paschmann et al., from which this information was obtained. NASA, Dr. Goetz Paschmann, European Space Agency Paschmann, Goetz; Pedersen, Arne; Melzner, F.; Whipple, Elden C.; McIlwain, Carl E.; Fillius, R. W.; Haerendel, Gerhard; Formisano, Vittorio; Tsuruda, Koichiro; Torbert, Roy B.; Baumjohann, Wolfgang; Amata, Ermanno; Quinn, Jack M.; Bauer, Otto; Hayakawa, Hajime; Treumann, Rudolf A. 2025-11-14T16:01:56Z Space Physics Data Facility spase://SMWG/Person/Goetz.Paschmann PrincipalInvestigator spase://SMWG/Person/Arne.Pedersen CoInvestigator spase://SMWG/Person/F.Melzner CoInvestigator spase://SMWG/Person/Elden.C.Whipple CoInvestigator spase://SMWG/Person/Carl.E.McIlwain CoInvestigator spase://SMWG/Person/R.Walker.Fillius CoInvestigator spase://SMWG/Person/Gerhard.Haerendel CoInvestigator spase://SMWG/Person/Vittorio.Formisano CoInvestigator spase://SMWG/Person/Koichiro.Tsuruda CoInvestigator spase://SMWG/Person/Roy.B.Torbert CoInvestigator spase://SMWG/Person/Wolfgang.Baumjohann CoInvestigator spase://SMWG/Person/Ermanno.Amata CoInvestigator spase://SMWG/Person/Jack.M.Quinn CoInvestigator spase://SMWG/Person/Otto.Bauer CoInvestigator spase://SMWG/Person/Hajime.Hayakawa CoInvestigator spase://SMWG/Person/Rudolf.A.Treumann CoInvestigator spase://SMWG/Person/James.M.Weygand MetadataContact NSSDC Master Catalog listing for the Cluster II Rumba Electron Drift Instrument (EDI) https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2000-045A-03 This site provides information concerning the Cluster II Rumba Electron Drift Instrument. spase://SMWG/Observatory/Cluster-Rumba ObservedBy spase://VMO/NumericalData/Cluster2-Rumba/EDI/PrimeParameter/4S spase://VMO/NumericalData/Cluster-Rumba/EDI/PrimeParameter/4S spase://VSPO/NumericalData/Cluster-Rumba/EDI/PrimeParameter/PT4S spase://ESA/NumericalData/Cluster-Rumba/EDI/PrimeParameter/PT4S spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/cluster/c1/pp/edi/ Cluster II Rumba Prime Parameter Electron Drift Instrument (EDI) data HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/cluster/c1/pp/edi/ In CDF via HTTP from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=C1_PP_EDI&index=sp_phys C1_PP_EDI CDF https://cdaweb.gsfc.nasa.gov/pub/data/cluster/c1/pp/edi/$Y c1_pp_edi_$Y$m$d_$v.cdf NASA, Goetz Paschmann spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb Programmatic Data Access https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/C1_PP_EDI/clientLibraryExample/ C1_PP_EDI Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary NASA, Goetz Paschmann spase://SMWG/Repository/NASA/GSFC/SPDF Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi C1_PP_EDI Web Service to this product using the HAPI interface. CSV NASA, Goetz Paschmann Calibrated Cluster II Rumba Prime Parameter Electron Drift Instrument (EDI) Data Calibrated 1 spase://SMWG/Instrument/Cluster-Rumba/EDI ElectricField 2000-12-09T00:00:00 -P3M Time format in data files is: day, month, year hour, min, seconds. Ex: 01-Jan-1981 00:00:00.000 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 Half Sample Time Interval Half_interval__C1_PP_EDI Half width of measurement interval PT4S ms 1.0e-3>s -1.0000e+31 Other Universal Time Epoch__C1_PP_EDI Universal Time in data cell: day, month, year hour, min, seconds. Ex: 01-Jan-1981 00:00:00.000. PT4S ms 1.0e-3>s Epoch -1.0000e+31 Temporal Status Status__C1_PP_EDI Cluster II Rumba Prime Parameter Electron Drift Instrument status at spin time resolution PT4S 0 255 255 Other Drift Velocity V_ed_xyz_gse__C1_PP_EDI Cluster II Rumba Prime Parameter Electron Drift Instrument drift velocity at spin time resolution PT4S km/s 1000.0>m s^-1 Cartesian GSE -600 600 3 Vx GSE Component.I 1 Vy GSE Component.J 2 Vz GSE Component.K 3 -2000 2000 -1.0000e+31 Electron Vector Velocity Electric Field E_xyz_gse__C1_PP_EDI Cluster II Rumba Prime Parameter Electron Drift Instrument electric field at spin time resolution PT4S mV/m 0.001>V m^-1 Cartesian GSE -30 30 3 Ex GSE Component.I 1 Ey GSE Component.J 2 Ez GSE Component.K 3 -200 200 -1.0000e+31 Vector Electric Reduced Chi-squared Values Reduced_chi_sq__C1_PP_EDI Cluster II Rumba Prime Parameter Electron Drift Instrument reduced chi-squared values of the BESTARG fit at spin time resolution PT4S 0 100 0 100 -1.0000e+31 Other