Name: ELFIN A Energetic Particle Detectors for Electrons (EPD-E) 0.2 s Data
Creator: Angelopoulos, V., Russell, C., Wu, J., Wilkins, C., Caron, R., Tsai, E., King, J., and Norris, A.
Published: 2024-06-19
License: https://spdx.org/licenses/CC0-1.0.html

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ELFIN A Energetic Particle Detectors for Electrons (EPD-E) 0.2 s Data. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/jyaq-cq12. Accessed on document.write(currentDateStr);. Note: Proper references, including Copy BibTeX Citation or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. ResourceID spase://NASA/NumericalData/ELFIN/A/EPD/L1/electron/PT0.2S Description The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. Each spacecraft has two Energetic Particle Detectors, one for Electrons (EPD-E) and one for Ions (EPD-I), as well as a Fluxgate Magnetometer deployed at the end of a 75cm stacer boom. These science instruments were developed by UCLA staff at the Institute for Geophysics and Planetary Physics (IGPP) and the Earth, Planetary, and Space Sciences department (EPSS). Metadata Rights CC0-1.0: Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license. View XML | Edit Details Version:2.7.1 NumericalData ResourceID spase://NASA/NumericalData/ELFIN/A/EPD/L1/electron/PT0.2S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName ELFIN A Energetic Particle Detectors for Electrons (EPD-E) 0.2 s Data DOI https://doi.org/10.48322/jyaq-cq12 ReleaseDate 2026-07-21 12:04:54Z RevisionHistory RevisionEvent ReleaseDate 2024-06-10 12:34:56.789Z Note Numerical data metadata added to the Github. JMW RevisionEvent ReleaseDate 2024-06-19 12:34:56.789Z Note Revised metadata and added DOI. JMW RevisionEvent ReleaseDate 2024-06-24 12:34:56.789Z Note Added additional contacts and funding. JMW RevisionEvent ReleaseDate 2025-03-03 13:45:36Z Note Modified Funding AwardNumber. ZCB RevisionEvent ReleaseDate 2025-10-02 15:11:50Z Note 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 RevisionEvent ReleaseDate 2025-12-04 13:29:10Z Note Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-06-26 13:16:51Z Note Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB RevisionEvent ReleaseDate 2026-07-21 12:04:54Z Note Added HelioData InformationURL. JWL Description The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. Each spacecraft has two Energetic Particle Detectors, one for Electrons (EPD-E) and one for Ions (EPD-I), as well as a Fluxgate Magnetometer deployed at the end of a 75cm stacer boom. These science instruments were developed by UCLA staff at the Institute for Geophysics and Planetary Physics (IGPP) and the Earth, Planetary, and Space Sciences department (EPSS). Acknowledgement Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF for providing the Data. Open Data for Scientific Use. PublicationInfo Authors Angelopoulos, V., Russell, C., Wu, J., Wilkins, C., Caron, R., Tsai, E., King, J., and Norris, A. PublicationDate 2024-06-19 12:34:56.789Z PublishedBy Space Physics Data Facility Funding Agency NASA Project ELFIN funding AwardNumber NNX14AN68G Funding Agency NSF Project ELFIN funding AwardNumber AGS-1242918 Funding Agency NSF Project ELFIN funding AwardNumber AGS-2019950 Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/Vassilis.Angelopoulos 2. Scientist spase://SMWG/Person/Cindy.Russell 3. Scientist spase://SMWG/Person/Jiashu.Wu 4. TechnicalContact spase://SMWG/Person/Colin.Wilkins 5. TechnicalContact spase://SMWG/Person/Ryan.Caron 6. ProjectManager spase://SMWG/Person/Ethan.Tsai 7. DataProducer spase://SMWG/Person/James.King 8. DataProducer spase://SMWG/Person/Austin.Norris 9. MetadataContact spase://SMWG/Person/Robert.M.Candey 10. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze 11. MetadataContact spase://SMWG/Person/James.M.Weygand InformationURL Name Electron Losses and Fields INvestigation-A twin satellite mission URL https://elfin.igpp.ucla.edu Description http://elfin.igpp.ucla.edu Language en InformationURL Name HelioData URL https://helio.data.nasa.gov/dataset/ELFIN_A_EPD_L1_electron_PT0.2S Description The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open RightsList Rights SchemeURI https://spdx.org/licenses/ RightsIdentifierScheme SPDX RightsIdentifier CC0-1.0 RightsURI https://spdx.org/licenses/CC0-1.0.html RightsName Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products AccessURL Name FTPS from SPDF (not with most browsers) URL ftps://spdf.gsfc.nasa.gov/pub/data/elfin/elfina/l1/fast/electron/ Description Access to Data in CDF Format via ftps from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/elfin/elfina/l1/fast/electron/ Description Access to Data in CDF Format via https from SPDF AccessURL Name CDAWeb URL https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ELA_L1_EPDEF&index=sp_phys ProductKey ELA_L1_EPDEF Description Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb Format CDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/elfin/elfina/l1/fast/electron/$Y AccessFilenameTemplate ela_l1_epdef_$Y$m$d_$v.cdf Acknowledgement Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF. Please acknowledge the Data Providers and CDAWeb when using these Data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Availability Online AccessRights Open AccessURL Name CDAWeb HAPI Server URL https://cdaweb.gsfc.nasa.gov/hapi Style HAPI ProductKey ELA_L1_EPDEF Description HAPI access to this data. Note: this AccessInformation element was added by HDPWS. Format CSV Acknowledgement Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF. Please acknowledge the Data Providers and CDAWeb when using these Data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open AccessURL Name CDAWeb Programmatic Data Access URL https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/ELA_L1_EPDEF/clientLibraryExample/ Style WebService ProductKey ELA_L1_EPDEF Description Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Format Binary Acknowledgement Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF. Please acknowledge the Data Providers and CDAWeb when using these Data. ProcessingLevel Calibrated InstrumentIDs spase://NASA/Instrument/ELFIN/A/EPD MeasurementType EnergeticParticles TemporalDescription TimeSpan StartDate 2018-12-01 00:00:00.000Z StopDate 2022-09-11 23:59:59.999Z Cadence PT0.2S ObservedRegion Earth.Magnetosphere ObservedRegion Earth.Magnetosphere.Polar ObservedRegion Earth.NearSurface ObservedRegion Earth.NearSurface.AuroralRegion ObservedRegion Earth.NearSurface.Atmosphere ObservedRegion Earth.NearSurface.Ionosphere ObservedRegion Earth.NearSurface.PolarCap Parameter #1 Name Time since Jan 1, 2000 ParameterKey ela_pef_time Description ela_pef_time, UTC, in seconds since Caveats Unleaped seconds Cadence PT0.2S Units s RenderingHints AxisLabel ela_pef_time ValueFormat E12.2 ScaleType LinearScale ValidMin 2018-01-01T00:00:00.000000000 ValidMax 2022-12-31T23:59:58.999000000 FillValue 9999-12-31T23:59:59.999999999 Support SupportQuantity Temporal Parameter #2 Name Electron Differential-Directional Counts Set Time series defined by using: ela_pef_time ParameterKey ela_pef Description [ADC UNITS ONLY] L1 EPD Electron differential-directional counts, Fast Mode - all 16 energies. All energy elements are the log-mean values of the channel. Cadence PT0.2S Units raw counts RenderingHints AxisLabel Electron counts/sector ValueFormat F12.8 ScaleType LogScale Structure Size 16 Element Name Element 1 Index 1 RenderingHints AxisLabel 63.2455 Element Name Element 2 Index 2 RenderingHints AxisLabel 97.9796 Element Name Element 3 Index 3 RenderingHints AxisLabel 138.564 Element Name Element 4 Index 4 RenderingHints AxisLabel 183.303 Element Name Element 5 Index 5 RenderingHints AxisLabel 238.118 Element Name Element 6 Index 6 RenderingHints AxisLabel 305.205 Element Name Element 7 Index 7 RenderingHints AxisLabel 385.162 Element Name Element 8 Index 8 RenderingHints AxisLabel 520.480 Element Name Element 9 Index 9 RenderingHints AxisLabel 752.994 Element Name Element 10 Index 10 RenderingHints AxisLabel 1081.67 Element Name Element 11 Index 11 RenderingHints AxisLabel 1529.71 Element Name Element 12 Index 12 RenderingHints AxisLabel 2121.32 Element Name Element 13 Index 13 RenderingHints AxisLabel 2893.96 Element Name Element 14 Index 14 RenderingHints AxisLabel 3728.61 Element Name Element 15 Index 15 RenderingHints AxisLabel 4906.12 Element Name Element 16 Index 16 RenderingHints AxisLabel 6500 ValidMin -1000000 ValidMax 1.0e+06 FillValue NaN Particle ParticleType Electron ParticleQuantity Counts Parameter #3 Name Central Energies for Each of the 16 EPD Electron Channels ParameterKey ela_pef_energies_mean Description Central energies for each of 16 EPD electron channels. All values are the log-mean energies of each differential channel and not summed averages. Cadence PT0.2S Units keV RenderingHints AxisLabel Central energies for ech eletron bin ValueFormat F12.8 ScaleType LogScale Structure Size 16 ValidMin 1 ValidMax 1.0e+06 FillValue -128.0 Support SupportQuantity Housekeeping Parameter #4 Name Minimum Energy for Each of the 16 EPD Electron Channels ParameterKey ela_pef_energies_min Description Min energy bins associated with each of 16 EPD electron channels Cadence PT0.2S Units keV RenderingHints AxisLabel Min Electron energy bins ValueFormat F12.8 Structure Size 16 ValidMin 0.0 ValidMax 1.0e+06 FillValue -128.0 Support SupportQuantity Housekeeping Parameter #5 Name Maximum Energy for Each of the 16 EPD Electron Channels ParameterKey ela_pef_energies_max Description Max energy bins for each of 16 EPD electron channels Cadence PT0.2S Units keV RenderingHints AxisLabel Max energy bins ValueFormat F12.8 Structure Size 16 ValidMin 0.0 ValidMax 1.0e+06 FillValue -128.0 Support SupportQuantity Housekeeping Parameter #6 Name Sector Number Set Time series defined by using: ela_pef_time ParameterKey ela_pef_sectnum Description sector number Cadence PT0.2S Units num sector RenderingHints DisplayType TimeSeries AxisLabel Sector Number ValueFormat I2 ValidMin 0 ValidMax 31 FillValue -128 Support SupportQuantity Housekeeping Parameter #7 Name Number Spins in Sum Set Time series defined by using: ela_pef_time ParameterKey ela_pef_nspinsinsum Description The number spins in the sum. Cadence PT0.2S Units num spins in sum RenderingHints DisplayType TimeSeries AxisLabel Number Spins in Sum ValueFormat I2 ValidMin 0 ValidMax 16 FillValue -128 Support SupportQuantity Housekeeping Parameter #8 Name Number of Spin Sectors Set Time series defined by using: ela_pef_time ParameterKey ela_pef_nsectors Description Number of spin sectors Cadence PT0.2S Units num sectors RenderingHints DisplayType TimeSeries AxisLabel Number of spin sectors ValueFormat I2 ValidMin 0 ValidMax 31 FillValue -128 Support SupportQuantity Housekeeping Parameter #9 Name Spin Period Set Time series defined by using: ela_pef_time ParameterKey ela_pef_spinper Description spinperiod Cadence PT0.2S Units s RenderingHints AxisLabel spinper ValueFormat F12.8 ValidMin 0.0 ValidMax 480 FillValue NaN Support SupportQuantity SpinPeriod Parameter #10 Name Electron Counts Set Time series defined by using: ela_pef_time ParameterKey ela_pef_8 Description ---> just the bottom eight energy channels Caveats This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: ela_pef. Cadence PT0.2S Units raw counts RenderingHints AxisLabel Electron counts/sector ValueFormat F12.8 ScaleType LogScale Structure Size 16 Element Name Element 1 Index 1 RenderingHints AxisLabel 63.2455 Element Name Element 2 Index 2 RenderingHints AxisLabel 97.9796 Element Name Element 3 Index 3 RenderingHints AxisLabel 138.564 Element Name Element 4 Index 4 RenderingHints AxisLabel 183.303 Element Name Element 5 Index 5 RenderingHints AxisLabel 238.118 Element Name Element 6 Index 6 RenderingHints AxisLabel 305.205 Element Name Element 7 Index 7 RenderingHints AxisLabel 385.162 Element Name Element 8 Index 8 RenderingHints AxisLabel 520.480 Element Name Element 9 Index 9 RenderingHints AxisLabel 752.994 Element Name Element 10 Index 10 RenderingHints AxisLabel 1081.67 Element Name Element 11 Index 11 RenderingHints AxisLabel 1529.71 Element Name Element 12 Index 12 RenderingHints AxisLabel 2121.32 Element Name Element 13 Index 13 RenderingHints AxisLabel 2893.96 Element Name Element 14 Index 14 RenderingHints AxisLabel 3728.61 Element Name Element 15 Index 15 RenderingHints AxisLabel 4906.12 Element Name Element 16 Index 16 RenderingHints AxisLabel 6500 ValidMin -1.0e+06 ValidMax 1.0e+06 FillValue nan Particle ParticleType Electron ParticleQuantity Counts Parameter #11 Name Electron Counts Set Time series defined by using: ela_pef_time ParameterKey ela_pef_top8 Description ---> just the top eight energy channels Caveats This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: ela_pef. Cadence PT0.2S Units raw counts RenderingHints AxisLabel Electron counts/sector ValueFormat F12.8 ScaleType LogScale Structure Size 16 Element Name Element 1 Index 1 RenderingHints AxisLabel 63.2455 Element Name Element 2 Index 2 RenderingHints AxisLabel 97.9796 Element Name Element 3 Index 3 RenderingHints AxisLabel 138.564 Element Name Element 4 Index 4 RenderingHints AxisLabel 183.303 Element Name Element 5 Index 5 RenderingHints AxisLabel 238.118 Element Name Element 6 Index 6 RenderingHints AxisLabel 305.205 Element Name Element 7 Index 7 RenderingHints AxisLabel 385.162 Element Name Element 8 Index 8 RenderingHints AxisLabel 520.480 Element Name Element 9 Index 9 RenderingHints AxisLabel 752.994 Element Name Element 10 Index 10 RenderingHints AxisLabel 1081.67 Element Name Element 11 Index 11 RenderingHints AxisLabel 1529.71 Element Name Element 12 Index 12 RenderingHints AxisLabel 2121.32 Element Name Element 13 Index 13 RenderingHints AxisLabel 2893.96 Element Name Element 14 Index 14 RenderingHints AxisLabel 3728.61 Element Name Element 15 Index 15 RenderingHints AxisLabel 4906.12 Element Name Element 16 Index 16 RenderingHints AxisLabel 6500 ValidMin -1.0e+06 ValidMax 1.0e+06 FillValue nan Particle ParticleType Electron ParticleQuantity Counts