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Share sensitive information only on official, secure websites. HDPWS Data Access FTPS from SPDF (not with most browsers) HTTPS from SPDF CDAWeb WebService: CDAWeb Programmatic Data Access HAPI: CDAWeb HAPI Server IBEX High Energy Neutral Atom Imager (Hi) Data Release 15, Compton-Getting corrected, Survival Probability corrected, Ribbon-centered frame, West Ecliptic ENA Flux Maps, Level H3, two-year average Data var authors='David J. McComas'; document.write(authors); (2026). IBEX High Energy Neutral Atom Imager (Hi) Data Release 15, Compton-Getting corrected, Survival Probability corrected, Ribbon-centered frame, West Ecliptic ENA Flux Maps, Level H3, two-year average Data. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/bp1a-nm06. 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/IBEX/Hi/H3/Release15/CG/SP/RIBCEN/P2Y Description IBEX-Hi Release 15 two-year Ribbon-centered hydrogen ENA maps with Compton-Getting and survival-probability corrections applied. Two-year averages combine 2012-2013, 2014-2015, and 2016-2017. The science arrays are 60 by 30 Solar West Ecliptic longitude and latitude maps for IBEX-Hi energy channels 2-6. The channel 2-6 FWHM energy ranges are 0.52-0.95, 0.84-1.55, 1.36-2.50, 1.99-3.75, and 3.13-6.00 keV; the corresponding nominal energies are 0.71, 1.11, 1.74, 2.73, and 4.29 keV. Flux-variance arrays (Fvar2-Fvar6) are also included. The CDF also contains virtual Flux*_movie alternate-view variables used for CDAWeb map-movie rendering. The CDAWeb ProductKey is IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR. 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:2.7.2 NumericalData ResourceID spase://NASA/NumericalData/IBEX/Hi/H3/Release15/CG/SP/RIBCEN/P2Y NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName IBEX High Energy Neutral Atom Imager (Hi) Data Release 15, Compton-Getting corrected, Survival Probability corrected, Ribbon-centered frame, West Ecliptic ENA Flux Maps, Level H3, two-year average Data AlternateName IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR DOI https://doi.org/10.48322/bp1a-nm06 ReleaseDate 2026-09-04 19:16:54Z RevisionHistory RevisionEvent ReleaseDate 2025-07-07 12:34:56.789Z Note Initial release of metadata, ADAPT generated, LFB RevisionEvent ReleaseDate 2026-08-14 12:34:56.789Z Note Curated and validated against SPASE 2.7.1, OK RevisionEvent ReleaseDate 2026-09-04 19:16:54Z Note Matched version number in schemaLocation attribute to updated value in Version tag. Added PublicationInfo and DOI. TLK Description IBEX-Hi Release 15 two-year Ribbon-centered hydrogen ENA maps with Compton-Getting and survival-probability corrections applied. Two-year averages combine 2012-2013, 2014-2015, and 2016-2017. The science arrays are 60 by 30 Solar West Ecliptic longitude and latitude maps for IBEX-Hi energy channels 2-6. The channel 2-6 FWHM energy ranges are 0.52-0.95, 0.84-1.55, 1.36-2.50, 1.99-3.75, and 3.13-6.00 keV; the corresponding nominal energies are 0.71, 1.11, 1.74, 2.73, and 4.29 keV. Flux-variance arrays (Fvar2-Fvar6) are also included. The CDF also contains virtual Flux*_movie alternate-view variables used for CDAWeb map-movie rendering. The CDAWeb ProductKey is IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR. Acknowledgement Please acknowledge the IBEX Mission Principal Investigator, Dr. David J. McComas of Princeton University, the IBEX Science Team, and NASA/GSFC SPDF/CDAWeb when using these data. PublicationInfo Authors David J. McComas PublicationDate 2026-09-04 14:35:41.000Z PublishedBy Space Physics Data Facility Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/David.J.McComas InformationURL Name IBEX The Interstellar Boundary Explorer mission URL https://ibex.princeton.edu/ Description IBEX Mission, Instrument, and Data Release Descriptions Language en InformationURL Name IBEX Data Release URL https://ibex.princeton.edu/DataRelease Description IBEX public data release information and documentation Language en AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb 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/ibex/cdf/h3/release15/ena_hi_r15_cg_sp_ribcen_2yr/ ProductKey IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR Description Access to Data in CDF Format via ftps from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/ibex/cdf/h3/release15/ena_hi_r15_cg_sp_ribcen_2yr/ ProductKey IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR 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=IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR&index=sp_phys ProductKey IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR Description Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb Format CDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/ibex/cdf/h3/release15/ena_hi_r15_cg_sp_ribcen_2yr AccessFilenameTemplate ibex_h3_ena_hi_r15_cg_sp_ribcen_2yr_$Y$m$d_$v.cdf Acknowledgement Please acknowledge the Principal Investigator D.J. McComas, the IBEX data providers, and NASA/GSFC SPDF/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/IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR/clientLibraryExample/ Style WebService ProductKey IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR 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 D.J. McComas, the IBEX data providers, and NASA/GSFC SPDF/CDAWeb when using these data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb 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 CDAWeb HAPI Server URL https://cdaweb.gsfc.nasa.gov/hapi Style HAPI ProductKey IBEX_H3_ENA_HI_R15_CG_SP_RIBCEN_2YR Description Web service access to this product using the HAPI interface. Format CSV Acknowledgement Please acknowledge the Principal Investigator D.J. McComas, the IBEX data providers, and NASA/GSFC SPDF/CDAWeb when using these data. ProcessingLevel Calibrated InstrumentIDs spase://SMWG/Instrument/IBEX/Hi MeasurementType NeutralAtomImages TemporalDescription TimeSpan StartDate 2011-12-24 00:00:00.000Z StopDate 2017-12-25 00:00:00.000Z Cadence P2Y ObservedRegion Heliosphere.Remote1AU Caveats RIBCEN denotes Ribbon-centered processing/reference geometry. The CDF coordinate support variables themselves are Solar Ecliptic latitude and east/west longitude, so the SPASE CoordinateSystem for map axes is SE. The CDF source metadata gives the energy-dependent Ribbon centers in ecliptic J2000 longitude/latitude as ESA2 [218.5,43.1], ESA3 [220.3,40.5], ESA4 [219.6,39.8], ESA5 [217.9,37.7], and ESA6 [214.2,32.4] degrees. These center values describe the Ribbon-centered construction and are not separate CDF coordinate variables. Parameter #1 Name Epoch Start Time ParameterKey Epoch Description CDF epoch time for the start of each two-year averaging interval. Cadence P2Y Units day-month-year hour:minute:second RenderingHints AxisLabel Epoch ValueFormat CDF EPOCH TIME ScaleType LinearScale ValidMin 1990-01-01T00:00:00.000Z ValidMax 2029-12-31T23:59:59.999Z FillValue 9999-12-31T23:59:59.999Z Support SupportQuantity Temporal Parameter #2 Name Epoch Stop Time ParameterKey Epoch2 Description CDF epoch time for the end of each two-year averaging interval. Cadence P2Y Units day-month-year hour:minute:second RenderingHints AxisLabel Epoch2 ValueFormat CDF EPOCH TIME ScaleType LinearScale ValidMin 1990-01-01T00:00:00.000Z ValidMax 2029-12-31T23:59:59.999Z FillValue 9999-12-31T23:59:59.999Z Support SupportQuantity Temporal Parameter #3 Name Starting Map Number Set Time series defined by using: Epoch ParameterKey mapnum Description Starting six-month IBEX map number used to define each two-year average. Cadence P2Y Units # RenderingHints DisplayType TimeSeries AxisLabel Starting Map Number ValueFormat I5 ScaleType LinearScale ValidMin 0 ValidMax 65534 FillValue 65535 Support SupportQuantity Other Parameter #4 Name Solar Ecliptic Latitude Bin Number ParameterKey latitude_bin Description Solar Ecliptic latitude bin number for the 30-bin, six-degree full-sky map grid. Units # RenderingHints AxisLabel # ValueFormat I5 ScaleType LinearScale Structure Size 30 ValidMin 1 ValidMax 30 FillValue 65534 Support SupportQuantity Other Parameter #5 Name Solar West Ecliptic Longitude Bin Number ParameterKey longitude_bin Description Solar West Ecliptic longitude bin number for the 60-bin, six-degree full-sky map grid. Units # RenderingHints AxisLabel # ValueFormat I5 ScaleType LinearScale Structure Size 60 ValidMin 1 ValidMax 60 FillValue 65535 Support SupportQuantity Other Parameter #6 Name Solar Ecliptic Latitude ParameterKey Latitude Description Solar Ecliptic latitude at the center of each six-degree map bin. Units ° CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel SE Latitude ValueFormat F6.0 ScaleType LinearScale Structure Size 30 ValidMin -90 ValidMax 90 FillValue -1.0e+31 Support SupportQuantity Positional Parameter #7 Name Solar West Ecliptic Longitude ParameterKey West_Longitude Description Solar West Ecliptic longitude at the center of each six-degree map bin. Units ° CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel SWE Longitude ValueFormat F6.0 ScaleType LinearScale Structure Size 60 ValidMin 0 ValidMax 360 FillValue -1.0e+31 Support SupportQuantity Positional Parameter #8 Name Solar East Ecliptic Longitude ParameterKey East_Longitude Description Solar East Ecliptic longitude corresponding to the same map grid. Units ° CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel SEE Longitude ValueFormat F6.0 ScaleType LinearScale Structure Size 60 ValidMin 0 ValidMax 360 FillValue -1.0e+31 Support SupportQuantity Positional Parameter #9 Name Starting Orbit Number Set Time series defined by using: Epoch ParameterKey orbit1 Description Starting IBEX orbit number for each two-year averaging interval. Cadence P2Y Units # RenderingHints AxisLabel Starting Orbit ValueFormat I5 ScaleType LinearScale ValidMin 0 ValidMax 65534 FillValue 65535 Support SupportQuantity Other Parameter #10 Name Ending Orbit Number Set Time series defined by using: Epoch ParameterKey orbit2 Description Ending IBEX orbit number for each two-year averaging interval. Cadence P2Y Units # RenderingHints AxisLabel Ending Orbit ValueFormat I5 ScaleType LinearScale ValidMin 0 ValidMax 65534 FillValue 65535 Support SupportQuantity Other Parameter #11 Name Hydrogen ENA Differential Flux, IBEX-Hi Energy Channel 2, approximately 0.71 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux2 Description Two-year Compton-Getting- and survival-probability-corrected hydrogen ENA differential flux for IBEX-Hi energy channel 2, nominal energy approximately 0.71 keV and FWHM range 0.52-0.95 keV, on the 60 by 30 Solar West Ecliptic longitude and latitude grid. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.52 High 0.95 Units keV Parameter #12 Name Hydrogen ENA Differential Flux Movie View, IBEX-Hi Energy Channel 2, approximately 0.71 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux2_movie Description Virtual CDAWeb alternate-view variable derived from Flux2 for map-movie rendering. It represents the same two-year hydrogen ENA differential flux at nominal energy approximately 0.71 keV and FWHM range 0.52-0.95 keV. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.52 High 0.95 Units keV Parameter #13 Name Hydrogen ENA Differential Flux Variance, IBEX-Hi Energy Channel 2, approximately 0.71 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Fvar2 Description Variance of the two-year hydrogen ENA differential flux for IBEX-Hi energy channel 2. The CDF defines this as the square of standard deviation sigma, for FWHM energy range 0.52-0.95 keV. Cadence P2Y Units ((cm^2 s sr keV)^-1)^2 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux Variance ValueFormat E12.2 ScaleType LogScale Structure Size 60 30 ValidMin 0.0 ValidMax 1.0e+08 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Variance Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.52 High 0.95 Units keV Parameter #14 Name Hydrogen ENA Differential Flux, IBEX-Hi Energy Channel 3, approximately 1.11 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux3 Description Two-year Compton-Getting- and survival-probability-corrected hydrogen ENA differential flux for IBEX-Hi energy channel 3, nominal energy approximately 1.11 keV and FWHM range 0.84-1.55 keV, on the 60 by 30 Solar West Ecliptic longitude and latitude grid. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.84 High 1.55 Units keV Parameter #15 Name Hydrogen ENA Differential Flux Movie View, IBEX-Hi Energy Channel 3, approximately 1.11 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux3_movie Description Virtual CDAWeb alternate-view variable derived from Flux3 for map-movie rendering. It represents the same two-year hydrogen ENA differential flux at nominal energy approximately 1.11 keV and FWHM range 0.84-1.55 keV. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.84 High 1.55 Units keV Parameter #16 Name Hydrogen ENA Differential Flux Variance, IBEX-Hi Energy Channel 3, approximately 1.11 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Fvar3 Description Variance of the two-year hydrogen ENA differential flux for IBEX-Hi energy channel 3. The CDF defines this as the square of standard deviation sigma, for FWHM energy range 0.84-1.55 keV. Cadence P2Y Units ((cm^2 s sr keV)^-1)^2 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux Variance ValueFormat E12.2 ScaleType LogScale Structure Size 60 30 ValidMin 0.0 ValidMax 1.0e+08 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Variance Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 0.84 High 1.55 Units keV Parameter #17 Name Hydrogen ENA Differential Flux, IBEX-Hi Energy Channel 4, approximately 1.74 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux4 Description Two-year Compton-Getting- and survival-probability-corrected hydrogen ENA differential flux for IBEX-Hi energy channel 4, nominal energy approximately 1.74 keV and FWHM range 1.36-2.50 keV, on the 60 by 30 Solar West Ecliptic longitude and latitude grid. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.36 High 2.50 Units keV Parameter #18 Name Hydrogen ENA Differential Flux Movie View, IBEX-Hi Energy Channel 4, approximately 1.74 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux4_movie Description Virtual CDAWeb alternate-view variable derived from Flux4 for map-movie rendering. It represents the same two-year hydrogen ENA differential flux at nominal energy approximately 1.74 keV and FWHM range 1.36-2.50 keV. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.36 High 2.50 Units keV Parameter #19 Name Hydrogen ENA Differential Flux Variance, IBEX-Hi Energy Channel 4, approximately 1.74 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Fvar4 Description Variance of the two-year hydrogen ENA differential flux for IBEX-Hi energy channel 4. The CDF defines this as the square of standard deviation sigma, for FWHM energy range 1.36-2.50 keV. Cadence P2Y Units ((cm^2 s sr keV)^-1)^2 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux Variance ValueFormat E12.2 ScaleType LogScale Structure Size 60 30 ValidMin 0.0 ValidMax 1.0e+08 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Variance Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.36 High 2.50 Units keV Parameter #20 Name Hydrogen ENA Differential Flux, IBEX-Hi Energy Channel 5, approximately 2.73 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux5 Description Two-year Compton-Getting- and survival-probability-corrected hydrogen ENA differential flux for IBEX-Hi energy channel 5, nominal energy approximately 2.73 keV and FWHM range 1.99-3.75 keV, on the 60 by 30 Solar West Ecliptic longitude and latitude grid. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.99 High 3.75 Units keV Parameter #21 Name Hydrogen ENA Differential Flux Movie View, IBEX-Hi Energy Channel 5, approximately 2.73 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux5_movie Description Virtual CDAWeb alternate-view variable derived from Flux5 for map-movie rendering. It represents the same two-year hydrogen ENA differential flux at nominal energy approximately 2.73 keV and FWHM range 1.99-3.75 keV. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.99 High 3.75 Units keV Parameter #22 Name Hydrogen ENA Differential Flux Variance, IBEX-Hi Energy Channel 5, approximately 2.73 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Fvar5 Description Variance of the two-year hydrogen ENA differential flux for IBEX-Hi energy channel 5. The CDF defines this as the square of standard deviation sigma, for FWHM energy range 1.99-3.75 keV. Cadence P2Y Units ((cm^2 s sr keV)^-1)^2 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux Variance ValueFormat E12.2 ScaleType LogScale Structure Size 60 30 ValidMin 0.0 ValidMax 1.0e+08 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Variance Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 1.99 High 3.75 Units keV Parameter #23 Name Hydrogen ENA Differential Flux, IBEX-Hi Energy Channel 6, approximately 4.29 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux6 Description Two-year Compton-Getting- and survival-probability-corrected hydrogen ENA differential flux for IBEX-Hi energy channel 6, nominal energy approximately 4.29 keV and FWHM range 3.13-6.00 keV, on the 60 by 30 Solar West Ecliptic longitude and latitude grid. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 3.13 High 6.00 Units keV Parameter #24 Name Hydrogen ENA Differential Flux Movie View, IBEX-Hi Energy Channel 6, approximately 4.29 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Flux6_movie Description Virtual CDAWeb alternate-view variable derived from Flux6 for map-movie rendering. It represents the same two-year hydrogen ENA differential flux at nominal energy approximately 4.29 keV and FWHM range 3.13-6.00 keV. Cadence P2Y Units (cm^2 s sr keV)^-1 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux ValueFormat F12.6 ScaleType LinearScale Structure Size 60 30 ValidMin 0.0 ValidMax 10000.0 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Magnitude Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 3.13 High 6.00 Units keV Parameter #25 Name Hydrogen ENA Differential Flux Variance, IBEX-Hi Energy Channel 6, approximately 4.29 keV Set Two-year map defined by Epoch; dimension 1 is West_Longitude and dimension 2 is Latitude. ParameterKey Fvar6 Description Variance of the two-year hydrogen ENA differential flux for IBEX-Hi energy channel 6. The CDF defines this as the square of standard deviation sigma, for FWHM energy range 3.13-6.00 keV. Cadence P2Y Units ((cm^2 s sr keV)^-1)^2 CoordinateSystem CoordinateRepresentation Spherical CoordinateSystemName SE RenderingHints AxisLabel Flux Variance ValueFormat E12.2 ScaleType LogScale Structure Size 60 30 ValidMin 0.0 ValidMax 1.0e+08 FillValue -1.0e+31 Particle ParticleType Atom Qualifier Array Qualifier Variance Qualifier Differential ParticleQuantity NumberFlux EnergyRange Low 3.13 High 6.00 Units keV Contact SPDF: NASA-SPDF Feedback/Support Responsible NASA Official: Lan Jian Site Editor: Rita Johnson SPDF ROR ID SPDF re3data ID About NASA Accessibility FOIA No FEAR Act Privacy Policy Vulnerability Disclosure Policy Last Updated: 2026-09-04