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/KeyParameter/PT1H NASA NumericalData ACE Electron, Proton, and Alpha Monitor (EPAM) Solar Wind Plasma Energetic Particle Fluxes, Key Parameter (K1), 1 h Data https://doi.org/10.48322/qgh8-2q85 2025-12-04T13:28:12Z 2021-04-27T15:38:11 Only known prior ReleaseDate of the metadata 2022-07-25T12:34:56.789 Added DOI and PublicationInfo by JMW 2022-06-02, updated two InformationURL URLs, metadata updated to SPASE 2.4.1, reviewed by LFB 20220724 2025-09-30T14:27:06Z 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 2025-12-04T13:28:12Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB ACE Browse Data are designed for monitoring large-scale Particle and Field Behavior and for selecting interesting Time Periods. The Data are automatically generated from the Spacecraft Data Stream using simple Algorithms provided by the Instrument Teams. It is not routinely checked for Accuracy and is subject to Revision. Use this Data at your own Risk, and consult with the appropriate Instrument Teams about citing it. EPAM Browse Data are not validated by the Experimenters and should not be used except for Preliminary Examination prior to detailed Studies. ACE Electron, Proton, and Alpha Monitor (EPAM) References: http://www.srl.caltech.edu/ACE/. R. Gold, Please acknowledge the Principal Investigator, R. Gold of JHU Applied Physics Laboratory See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/. Gold, R. E., Roelof, E. C., Krimigis, S., Haggerty, D., Armstrong, T., Manweiler, J. W., and Patterson, J. D. 2022-04-27T12:17:00Z Space Physics Data Facility spase://SMWG/Person/Robert.E.Gold PrincipalInvestigator spase://SMWG/Person/Robert.E.McGuire MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact ACE Science Center Home Page for Level 2 Data Release Notes https://izw1.caltech.edu/ACE/ASC/level2/index.html ACE Level 2 Data Release Notes Home Page ACE Science Center Home Page for Level 2 Rules of Use https://izw1.caltech.edu/ACE/ASC/level2/policy_lvl2.html ACE Level 2 Rules of Use Home Page ACE Electron, Proton, and Alpha Monitor (EPAM) Instrument Home Page at the Applied Physics Laboratory, Johns Hopkins University http://sd-www.jhuapl.edu/ACE/EPAM/ ACE EPAM Instrument Home Page at APL/JHU spase://VSPO/NumericalData/ACE/EPAM/PT3600S spase://VSPO/NumericalData/P_ACE_HDR_EPAM_K1_1HR spase://VSPO/NumericalData/ACE/EPAM/KeyParameter/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/ace/epam/level_2_cdaweb/epm_k1/ Access to Data in CDF Format via ftp from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/ace/epam/level_2_cdaweb/epm_k1/ Access to Data in CDF Format via http from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=AC_K1_EPM&index=sp_phys AC_K1_EPM Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb CDF None https://cdaweb.gsfc.nasa.gov/pub/data/ace/epam/level_2_cdaweb/epm_k1/$Y ac_k1_epm_$Y$m$d_$v.cdf R. Gold, Please acknowledge the Principal Investigator, R. Gold of JHU Applied Physics Laboratory See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/. 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/AC_K1_EPM/clientLibraryExample/ AC_K1_EPM Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary R. Gold, Please acknowledge the Principal Investigator, R. Gold of JHU Applied Physics Laboratory See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/. 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 AC_K1_EPM Web Service to this product using the HAPI interface. CSV R. Gold, Please acknowledge the Principal Investigator, R. Gold of JHU Applied Physics Laboratory See the Rules of Use available from the ACE Science Center at: http://www.srl.caltech.edu/ace/. Please acknowledge the Data Providers and CDAWeb when using these Data. Calibrated spase://SMWG/Instrument/ACE/EPAM EnergeticParticles 2017-01-01T00:00:00.000 -P7D The Data become available about one Week after Observation PT1H Heliosphere Heliosphere.Inner Heliosphere.NearEarth Epoch Time Epoch Epoch Time, Beginning of Interval This Parameter exhibits an increasing Monotonic Progression. PT1H ms 1.0e-3>s Epoch E14.8 6.2987652219904e+13 6.3745034619904e+13 LinearScale 01-Jan-1996 00:00:00.000 01-Jan-2020 00:00:00.000 -1.0e+31 Temporal Time PB5 Time Series defined by using: EPOCH Time_PB5 Time PB5, Time of Observation, Year, Day, and Milliseconds of Day This Parameter exhibits an increasing Monotonic Progression. PT1H LinearScale 3 Year 1 a 1997 2020 year 1997 2020 Day of Year (Jan 1 = Day 1) 2 d 1 366 day 1 366 Elapsed milliseconds of day 3 ms 0 86400 msec 0 86400 -2147483648 Temporal Proton Flux Intensity, Low Energy Time Series defined by using: EPOCH H_lo Proton Flux Intensity, 0.48 KeV to 0.97 MeV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 H (0.48-0.97 MeV) E11.3 0.0 10000.0 LogScale 0.0 10000.0 -1.0e+31 Proton Scalar NumberFlux 1 Ion Flux Intensity, Very Low Energy Time Series defined by using: EPOCH Ion_very_lo Ion Flux Intensity, 47 KeV to 65 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Ion (47-65 keV) E11.3 0.0 100000.0 LogScale 0.0 100000.0 -1.0e+31 Ion Scalar NumberFlux Ion Flux Intensity, Low Energy Time Series defined by using: EPOCH Ion_lo Ion Flux Intensity, 112 KeV to 187 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Ion (112-187 keV) E11.3 0.0 100000.0 LogScale 0.0 100000.0 -1.0e+31 Ion Scalar NumberFlux Ion Flux Intensity, Mid Energy Time Series defined by using: EPOCH Ion_mid Ion Flux Intensity, 310 KeV to 580 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Ion (310-580 keV) E11.3 0.0 10000.0 LogScale 0.0 10000.0 -1.0e+31 Ion Scalar NumberFlux Ion Flux Intensity, High Energy Time Series defined by using: EPOCH Ion_hi Ion Flux Intensity, 1060 KeV to 1910 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Ion (1060-1910 keV) E11.3 0.0 10000.0 LogScale 0.0 10000.0 -1.0e+31 Ion Scalar NumberFlux Electron Flux Intensity, Low Energy Time Series defined by using: EPOCH Electron_lo Electron Flux Intensity, 38 KeV to 53 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Electron (38-53 keV) E11.3 0.0 1.0e+07 LogScale 0.0 1.0e+07 -1.0e+31 Electron Scalar NumberFlux Electron Flux Intensity, High Energy Time Series defined by using: EPOCH Electron_hi Electron Flux Intensity, 175 KeV to 315 keV PT1H (cm^2 s sr MeV)^-1 6.24161e-19>(m^2 s sr J)^-1 Electron (175-315 keV) E11.3 0.0 1.0e+06 LogScale 0.0 1.0e+06 -1.0e+31 Electron Scalar NumberFlux Livetime Time Series defined by using: EPOCH livetime Livetime (1 hr) Livetime Values equal to Zero denote Ignore Data PT1H Livetime I4 0 3600 LinearScale 0 3600 -2147483648 Other