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/STEREO-A/IMPACT/HET/L1/PT1M NASA NumericalData STEREO-A IMPACT HET Level 1 Data https://doi.org/10.48322/12as-eq92 2025-12-04T13:31:32Z 2020-07-07T21:15:19 Only known prior ReleaseDate of the metadata 2024-06-13T00:00:00 Metadata, including parameter descriptions, updated by ADAPT code (LFB), final editing and DOI minting by AK 2024-07-01T00:00:00 Publication Info added by TLK 2025-10-03T10:49:11Z 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 2025-12-04T13:31:32Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB STEREO-A In-Situ Measurements of Particles and CME Transients (IMPACT) High Energy Telescopes (HET) Level 1 1-minute data include electron fluxes in (cm^2 s sr MeV)^-1 measured in 3 energy ranges (0.7-1.4, 1.4-2.8 and 2.8-4.0 MeV) and proton fluxes in (cm^2 s sr MeV)^-1 measured in 11 energy ranges (13.6-15.1, 15.0-17.1, 17.0-19.3, 20.8-23.8, 23.8-26.4, 26.3-29.7, 29.6-33.4, 33.4-35.8, 35.6-40.5, 40-60, and 60-100 MeV). Please acknowledge the STEREO IMPACT PI, Janet Luhmann of UCB, and NASA Space Physics Data Facility (SPDF) Luhmann, Janet; G., Lee, Christina; von Rosenvinge, Tycho T.; Christian, Eric R. 2024-01-01T00:00:00 Space Physics Data Facility spase://SMWG/Person/Janet.G.Luhmann PrincipalInvestigator spase://SMWG/Person/Christina.Lee PrincipalInvestigator spase://SMWG/Person/Tycho.T.Von.Rosenvinge CoInvestigator spase://SMWG/Person/Eric.R.Christian CoInvestigator spase://SMWG/Person/Robert.M.Candey MetadataContact spase://SMWG/Person/Andriy.Koval MetadataContact STEREO/IMPACT PI Site https://sprg.ssl.berkeley.edu/impact Experiment and Data descriptions for STEREO/IMPACT HET description https://sprg.ssl.berkeley.edu/impact/SSR/vonRosenetalSSR.pdf HET Instrument description paper STEREO page at Caltech https://www.srl.caltech.edu/STEREO/ STEREO Science Center https://stereo-ssc.nascom.nasa.gov/data.shtml spase://VSPO/NumericalData/STEREO-A/IMPACT/HET/L1/PT1M 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/stereo/ahead/l1/impact/het/ Access to Data in CDF Format via ftps from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/l1/impact/het/ Access to Data in CDF Format via https from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=STA_L1_HET&index=sp_phys STA_L1_HET Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None Please acknowledge the STEREO IMPACT PI, Janet Luhmann of UCB, and NASA Space Physics Data Facility (SPDF) 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 CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi STA_L1_HET Web Service to this product using the HAPI interface. CSV Level 1 spase://SMWG/Instrument/STEREO-A/IMPACT/HET EnergeticParticles 2006-12-01T00:00:53 -P2M PT1M Heliosphere.Remote1AU Epoch Epoch Time since 0 AD Start of interval time tag ms 1.0e-3>s Epoch 01-Jan-1990 00:00:00.000 31-Dec-2020 00:00:00.000 31-Dec-9999 23:59:59.999 Temporal Instrument Mode Time series defined by using: Epoch Mode Rate mode of the HET instrument. 0: Low rate mode 1: High rate mode PT1M mode I3 LinearScale 0 1 255 InstrumentMode Electron Flux Time series defined by using: Epoch Electron_Flux Electron flux measured by HET in 3 energy bins (time series: good with plot overlay option, above) PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 TimeSeries Electron Flux E12.2 LogScale 3 E 0.7 - 1.4 MeV 1 1.05000 E 1.4 - 2.8 MeV 2 2.10000 E 2.8 - 4.0 MeV 3 3.40000 -1.0e+30 1.0e+30 -1.0e+31 Electron Array Differential NumberFlux Electron Flux Time series defined by using: Epoch Electron_Flux_stack Electron flux measured by HET in 3 energy bins (stacked plot) This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: Electron_Flux. PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Electron Flux E12.2 LogScale 3 E 0.7 - 1.4 MeV 1 1.05000 E 1.4 - 2.8 MeV 2 2.10000 E 2.8 - 4.0 MeV 3 3.40000 -1.0e+30 1.0e+30 -1.0e+31 Electron Array Differential NumberFlux Proton Flux Time series defined by using: Epoch Proton_Flux Proton flux measured by the HET instrument in 11 energy bins (time series: good with plot overlay option, above) PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 TimeSeries Proton Flux E12.2 LogScale 11 P 13.6 - 15.1 MeV 1 14.3500 P 15.0 - 17.1 MeV 2 16.0500 P 17.0 - 19.3 MeV 3 18.1500 P 20.8 - 23.8 MeV 4 22.3000 P 23.8 - 26.4 MeV 5 25.1000 P 26.3 - 29.7 MeV 6 28 P 29.6 - 33. 4 MeV 7 31.5000 P 33.4 - 35.8 MeV 8 34.6000 P 35.6 - 40.5 MeV 9 38.0500 P 40 - 60 MeV 10 50 P 60 - 100 MeV 11 80 -1.0e+30 1.0e+30 -1.0e+31 Proton Array Differential NumberFlux Proton Flux Time series defined by using: Epoch Proton_Flux_stack Proton flux measured by the HET instrument in 11 energy bins (stacked) This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: Proton_Flux. PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Proton Flux E12.2 LogScale 11 P 13.6 - 15.1 MeV 1 14.3500 P 15.0 - 17.1 MeV 2 16.0500 P 17.0 - 19.3 MeV 3 18.1500 P 20.8 - 23.8 MeV 4 22.3000 P 23.8 - 26.4 MeV 5 25.1000 P 26.3 - 29.7 MeV 6 28 P 29.6 - 33. 4 MeV 7 31.5000 P 33.4 - 35.8 MeV 8 34.6000 P 35.6 - 40.5 MeV 9 38.0500 P 40 - 60 MeV 10 50 P 60 - 100 MeV 11 80 -1.0e+30 1.0e+30 -1.0e+31 Proton Array Differential NumberFlux Electron_Sigma Time series defined by using: Epoch Electron_Sigma Electron flux sigma uncertainty based on counting statistics PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 TimeSeries Electron Sigma E12.2 LinearScale 3 E 0.7 - 1.4 MeV 1 1.05000 E 1.4 - 2.8 MeV 2 2.10000 E 2.8 - 4.0 MeV 3 3.40000 -1.0e+30 1.0e+30 -1.0e+31 Electron Array Uncertainty Differential NumberFlux Proton_Sigma Time series defined by using: Epoch Proton_Sigma Proton flux sigma uncertainty based on counting statistics PT1M (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 TimeSeries Proton Sigma E12.2 LinearScale 11 P 13.6 - 15.1 MeV 1 14.3500 P 15.0 - 17.1 MeV 2 16.0500 P 17.0 - 19.3 MeV 3 18.1500 P 20.8 - 23.8 MeV 4 22.3000 P 23.8 - 26.4 MeV 5 25.1000 P 26.3 - 29.7 MeV 6 28 P 29.6 - 33. 4 MeV 7 31.5000 P 33.4 - 35.8 MeV 8 34.6000 P 35.6 - 40.5 MeV 9 38.0500 P 40 - 60 MeV 10 50 P 60 - 100 MeV 11 80 -1.0e+30 1.0e+30 -1.0e+31 Proton Array Uncertainty Differential NumberFlux Electron_Flux_midpoints Electron_Flux_Energy_vals Electron flux midpoints MeV 1.602176565e-13>J Electron Flux energies F5 LogScale 3 1.0 4.0 Array Other Proton_Flux_Energy midpoint vals Proton_Flux_Energy_vals Proton_Flux_Energy midpoint vals MeV 1.602176565e-13>J Proton Flux energies F5 LogScale 11 14.35 80.0 Array Other