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/ACE/EPAM/LEFS_LEMS/MFSA/SpacecraftFrame/SpinAveraged/Electron/Fluxes/PT1H NASA NumericalData ACE Electron Proton Alpha Monitor (EPAM) LEFS/LEMS MFSA, Spacecraft Frame, Spin-Averaged Electron Fluxes, Hourly Averages EPAM-MFSA-SpinAvg-Electron-1h https://doi.org/10.48322/n8em-hc02 2026-06-26T13:14:00Z 2020-07-07T21:14:11Z Only known prior ReleaseDate of the metadata 2022-08-04T12:34:56.789Z Added DOI and PublicationInfo minted by JMW, updated the DataProducer Person to Dennis K. Haggerty, metadata updated to SPASE 2.4.1, reviewed by LFB 20220730 2025-09-30T14:27:12Z Updated PublishedBy name to match ROR Registry. 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 2025-12-04T13:28:18Z Added MetadataRightsList. Updated to 2.7.1. ZCB 2026-06-26T13:14:00Z Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, ExpirationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB 2008-10-01T00:00:00.000Z Hourly-averaged electron fluxes from the MF Spectrum Analyzer of the ACE/EPAM instrument. All energies thresholds take into account the incident particle type, shielding, and inactive dead-layer of the solid state detector. All fluxes are background corrected and are in the spacecraft rest frame. Thomas P. Armstrong, Fundamental Technologies LLC Gold, R.E., Roelof, E.C., Krimigis, S., Haggerty, D., Armstrong, T.P., Manweiler, J.W., and J.D. Patterson 2022-01-01T00:00:00Z Space Physics Data Facility spase://SMWG/Person/Dennis.K.Haggerty DataProducer spase://SMWG/Person/James.M.Weygand MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact Explanation of EPAM print-groups and CSV file nomenclature. http://data.ftecs.com/VHO/VEPO/ace_epam/explanation-csv-files.html The Explanation HTML page at Fundamental Technologies describes how the numeric data from the ACE EPAM instrument are divided into different print-groups, the nomenclature of the ASCII-based comma-separated variable (CSV) files, and how those files can be accessed. spase://NASA/NumericalData/ACE/EPAM/LEFS_LEMS/MFSA/SpacecraftFrame/SpinAveraged/Electron/Fluxes/PT17M Other spase://NASA/NumericalData/ACE/EPAM/LEFS_LEMS/MFSA/SpacecraftFrame/SpinAveraged/Electron/Fluxes/P1D Other spase://VEPO/NumericalData/ACE/EPAM/MFSA/G94-1H spase://VSPO/NumericalData/ACE/EPAM/LEFS_LEMS/MFSA/SpacecraftFrame/SpinAveraged/Electron/Fluxes/PT1H spase://SMWG/Repository/FTECS Online Open ACE EPAM Hourly-Averaged http://data.ftecs.com/VHO/VEPO/ace_epam/mfsa/PT1H/ Parent directory containing the Hourly-averaged fluxes for the ACE/EPAM instrument for the entire mission. Text ASCII Thomas P. Armstrong, Fundamental Technologies LLC spase://SMWG/Instrument/ACE/EPAM EnergeticParticles 1990-01-01T00:00:00.000Z 2007-12-31T23:59:59.000Z PT1H Heliosphere.NearEarth Time for the record TimeStamp Time for the record given in year, day of year, hour, min, and decimal seconds. The given time represents the beginning of the averaging interval. PT1H 5 Year 1 -9999 Day of year 2 1 366 -999 Hour of day 3 0 23 -99 Minute of hour 4 0 59 -99 Seconds of minute 5 0.00 59.99 -99.99 Temporal LEFS60 MFSA Ch1 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA1-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 41 and 48 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 40.7 47.59 keV LEFS60 MFSA Ch2 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA2-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 48 and 56 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 47.59 56.14 keV LEFS60 MFSA Ch3 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA3-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 56 and 67 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 56.14 66.68 keV LEFS60 MFSA Ch4 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA4-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 67 and 80 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 66.68 79.61 keV LEFS60 MFSA Ch5 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA5-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 80 and 95 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 79.61 95.43 keV LEFS60 MFSA Ch6 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA6-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 95 and 115 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 95.43 114.74 keV LEFS60 MFSA Ch7 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA7-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 115 and 138 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 114.74 138.2 keV LEFS60 MFSA Ch8 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA8-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 138 and 167 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 138.2 166.8 keV LEFS60 MFSA Ch9 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA9-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 167 and 201 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 166.8 201.48 keV LEFS60 MFSA Ch10 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA10-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 201 and 244 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 201.48 243.52 keV LEFS60 MFSA Ch11 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA11-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 244 and 295 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 243.52 294.51 keV LEFS60 MFSA Ch12 Hourly-Averaged Spin-Averaged Electrons LEFS60-MFSA12-E-1H Hourly and spin-averaged LEFS60 electron fluxes between 295 and 356 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 294.51 356.36 keV LEFS150 MFSA Ch1 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA1-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 41 and 48 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 40.7 47.59 keV LEFS150 MFSA Ch2 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA2-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 48 and 56 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 47.59 56.14 keV LEFS150 MFSA Ch3 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA3-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 56 and 67 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 56.14 66.68 keV LEFS150 MFSA Ch4 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA4-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 67 and 80 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 66.68 79.61 keV LEFS150 MFSA Ch5 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA5-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 80 and 95 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 79.61 95.43 keV LEFS150 MFSA Ch6 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA6-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 95 and 115 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 95.43 114.74 keV LEFS150 MFSA Ch7 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA7-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 115 and 138 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 114.74 138.2 keV LEFS150 MFSA Ch8 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA8-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 138 and 167 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 138.2 166.8 keV LEFS150 MFSA Ch9 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA9-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 167 and 201 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 166.8 201.48 keV LEFS150 MFSA Ch10 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA10-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 201 and 244 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 201.48 243.52 keV LEFS150 MFSA Ch11 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA11-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 244 and 295 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 243.52 294.51 keV LEFS150 MFSA Ch12 Hourly-Averaged Spin-Averaged Electrons LEFS150-MFSA12-E-1H Hourly and spin-averaged LEFS150 electron fluxes between 295 and 356 keV Geometric Factor = 0.397 cm^2-sr PT1H count/sec-strad-cm^2-keV 0.0 1.00E+06 null Electron Average NumberFlux 294.51 356.36 keV