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/Helios1/E6/ParticleFlux/Kunow/CDF/PT1H NASA NumericalData Helios 1 E6 (Kunow) Hourly Particle Fluxes in CDF Format 2025-12-04T13:29:19Z 2021-04-27T15:38:11Z Only known prior ReleaseDate of the metadata 2025-11-14T16:02:22Z 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 2025-12-04T13:29:19Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB particle-flux>Merged proton, electron and alpha particle fluxes. Helios-A and Helios-B Spacecraft were a Pair of Deep Space Probes developed by the Federal Republic of Germany, FRG, in a Cooperative Program with NASA. The Purpose of the Mission was to make pioneering Measurements of the Interplanetary Medium from the Vicinity of the Earth Orbit to 0.3 AU. The Objective of Experiment, E6, was to study High-Energy, Charged, Cosmic Ray Particles of Solar, Planetary, and Galactic Origin in Interplanetary Space. Protons and Alpha Particles with Energies >1.3 MeV/n, and electrons >3.3 MeV were measured within Interplanetary Space over the Range from 0.3 to 1.0 A.U. The Instrument, a Particle Telescope with 55° Field of View, consisted of five Semiconductor Detectors, one Sapphire Cherenkov Counter, and one Scintillation Counter, all enclosed by an Anticoincidence Cylinder. The Telescope was calibrated prior to Launch using Radioactive Sources, Particle Acceletors, and Ground-Level Muons. It measured Protons and Alpha particles in six Channels, 1.3 to 3.3, 3.3 to 13, 13 to 27, 27 to 37, 37 to 45, and >45 MeV/n, and Electrons in five Energy Channels, 0.3 to 0.8, 0.8 to 2, 2 to 3, 3 to 4, and >4 MeV. For more Detail See pages 253-257 of Raumfahrtforschung, Volume 19, Number 5, 1975. The Helios-A Cosmic Ray '.dat' and Helios-B Cosmic Ray '.dat' files contains hourly averaged Fluxes of Electrons, Protons and Alpha Particles in the MeV Ranges. The Files were written in ASCII-Codes. Each Record contains 10 hourly Averages. The Differential Fluxes, (m^2 s sr MeV)^-1, Cover, in several Bands, the Energy Range 0.3 to 2.0 MeV for Electrons, 4.0 to 51 MeV for Protons, and 2.0 to 48 MeV for Alpha Particles. Also provided are the Integral Fluxes of Alphas above 48 MeV, and Protons above 51 MeV. For some of the Energy Channels, the Standard Deviations of the Averages are also provided. Each File is preceded by a Header Record, providing the Start and Stop Times of the Data in the File. The Acronyms for the Rate Channels are composed of a Letter and an Indication of the Energy Range in MeV/n for Protons and Alpha Particles, respectively and MeV for Electrons. The counting Rates are given as (m^2 s sr MeV/n)^-1 except for the Integral Channels P>51 and A>48, which are given as (m^2 s sr)^-1. Note: 1. Negative Rates, -0.99999E+04, indicate Missing or Invalid Data. 2. The Energy Boundaries for the Electron Channels 0.2 to 0.8 and 0.8 to 2 are only rough Estimates. H. Kunow Kunow, Horst W. 2025-11-14T16:02:22Z Space Physics Data Facility spase://SMWG/Person/Horst.W.Kunow PrincipalInvestigator spase://SMWG/Person/Robert.E.McGuire MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact spase://VSPO/NumericalData/Helios1/E6/ParticleFlux/Kunow/CDF/PT1H 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 FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/helios/helios1/e6_particle_flux_kunow/1hour_cdf/ In CDF via ftp from SPDF. HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/e6_particle_flux_kunow/1hour_cdf/ In CDF via http from SPDF. CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HELIOS1_E6_KUNOW_1HOUR_PARTICLE-FLUX&index=sp_phys HELIOS1_E6_KUNOW_1HOUR_PARTICLE-FLUX Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb CDF None https://cdaweb.gsfc.nasa.gov/pub/data/helios/helios1/e6_particle_flux_kunow/1hour_cdf/$Y helios1_e6_kunow_1hour_particle-flux_$Y$m$d_$v.cdf H. Kunow. Please acknowledge the data providers and CDAWeb when using these data. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb Programmatic Data Access https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/HELIOS1_E6_KUNOW_1HOUR_PARTICLE-FLUX/clientLibraryExample/ HELIOS1_E6_KUNOW_1HOUR_PARTICLE-FLUX Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary H. Kunow. Please acknowledge the data providers and CDAWeb when using these data. 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 HELIOS1_E6_KUNOW_1HOUR_PARTICLE-FLUX Web Service to this product using the HAPI interface. CSV H. Kunow. Please acknowledge the data providers and CDAWeb when using these data. Calibrated spase://SMWG/Instrument/Helios1/E6 EnergeticParticles 1974-12-12T00:00:00.000 1974-12-12T23:59:59.999 PT1H Heliosphere Heliosphere.NearEarth Heliosphere.Inner Epoch Epoch Default Time PT1H ms 1e-3>s 01-Jan-1000 00:00:00.000 01-Jan-3000 00:00:00.000 31-Dec-9999 23:59:59.999 Temporal Delta Time Time series defined by using: EPOCH delta_t Averaging Interval Averaging interval of data PT1H s TimeSeries averaging interval F13.2 0.0 1.0e+31 -1.0e+31 Temporal Proton Flux Time series defined by using: EPOCH p_flux Proton Flux, 4 Bands: 7 MeV/n to 44 MeV/n PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 4 Element 1 1 7.20000 Element 2 2 18.7000 Element 3 3 36.1000 Element 4 4 43.4400 0.0 1.0e+31 -1.0e+31 Proton Average Scalar Differential NumberFlux Proton Flux Standard Deviation Time series defined by using: EPOCH p_flux_sd Proton Flux Standard Deviation PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 4 Element 1 1 7.20000 Element 2 2 18.7000 Element 3 3 36.1000 Element 4 4 43.4400 0.0 1.0e+31 -1.0e+31 Proton Average Scalar Differential StandardDeviation NumberFlux Integral Proton Flux Time series defined by using: EPOCH p_flux_int Integral Proton Flux, >51 MeV/n PT1H (m^2 s sr)^-1 6.24161e18>(m^2 s sr)^-1 TimeSeries E6 Integral Proton Flux F13.2 0.0 1.0e+31 -1.0e+31 Proton Average Scalar Integral NumberFlux Integral Proton Flux Standard Deviation Time series defined by using: EPOCH p_flux_int_sd Integral Proton Flux, >51 MeV/n, Standard Deviation PT1H (m^2 s sr)^-1 6.24161e18>(m^2 s sr)^-1 TimeSeries integral proton flux sd F13.2 0.0 1.0e+31 -1.0e+31 Proton Average Scalar Integral StandardDeviation NumberFlux Electron Flux Time series defined by using: EPOCH e_flux Electron Flux, 2 Bands: 0.5 MeV/n and 1.26 MeV/n PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 2 Element 1 1 0.500000 Element 2 2 1.26000 0.0 1.0e+31 -1.0e+31 Electron Average Scalar Differential NumberFlux Electron Flux Standard Deviation Time series defined by using: EPOCH e_flux_sd Electron Flux Standard Deviation PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 2 Element 1 1 0.500000 Element 2 2 1.26000 0.0 1.0e+31 -1.0e+31 Electron Average Scalar Differential StandardDeviation NumberFlux Helium Flux Time series defined by using: EPOCH He_flux Helium Flux, 5 Bands: 2.8 MeV/n to 41 MeV/n PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 5 Element 1 1 2.80000 Element 2 2 7.20000 Element 3 3 18.7000 Element 4 4 31.6000 Element 5 5 42.1000 0.0 1.0e+31 -1.0e+31 AlphaParticle Average Scalar Differential NumberFlux Helium Flux Standard Deviation Time series defined by using: EPOCH He_flux_sd Helium Flux Standard Deviation PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 F13.2 5 Element 1 1 2.80000 Element 2 2 7.20000 Element 3 3 18.7000 Element 4 4 31.6000 Element 5 5 42.1000 0.0 1.0e+31 -1.0e+31 AlphaParticle Average Scalar Differential StandardDeviation NumberFlux Integral Helium Flux Time series defined by using: EPOCH He_flux_int Integral Helium Flux PT1H (m^2 s sr)^-1 6.24161e18>(m^2 s sr)^-1 TimeSeries integral He flux F13.2 0.0 1.0e+31 -1.0e+31 AlphaParticle Average Scalar Integral NumberFlux Integral Helium Flux Standard Deviation Time series defined by using: EPOCH He_flux_int_sd Integral Helium Flux Standard Deviation PT1H (m^2 s sr)^-1 6.24161e18>(m^2 s sr)^-1 TimeSeries integral He flux sd F13.2 0.0 1.0e+31 -1.0e+31 AlphaParticle Average Scalar Integral StandardDeviation NumberFlux Proton Flux, Spectrogram Time series defined by using: EPOCH p_flux_spectrum Proton Flux, Spectrogram This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: p_flux. PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 Spectrogram F13.2 4 Element 1 1 Element 2 2 Element 3 3 Element 4 4 0.0 1.0e+31 -1.0e+31 Proton Average Scalar Differential NumberFlux Electron Flux, Spectrogram Time series defined by using: EPOCH e_flux_spectrum Electron Flux, Spectrogram This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: e_flux. PT1H (m^2 s sr MeV)^-1 6.24161e18>(m^2 s sr J)^-1 Spectrogram F13.2 2 Element 1 1 Element 2 2 0.0 1.0e+31 -1.0e+31 Electron Average Scalar Differential NumberFlux Helium Flux, Spectrogram Time series defined by using: EPOCH He_flux_spectrum Helium Flux, Spectrogram This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: He_flux. PT1H (m^2 s sr MeV/n)^-1 6.24161e18>(m^2 s sr J/n)^-1 Spectrogram F13.2 5 Element 1 1 Element 2 2 Element 3 3 Element 4 4 Element 5 5 0.0 1.0e+31 -1.0e+31 AlphaParticle Average Scalar Differential NumberFlux