SPASE Resource Description

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} function getVersionedBibTeX(bibtex) { /* Add version field as suggested by August (Gus) Muench, Journals Data Editor, American Astronomical Society (email dated 7/7/25) */ const accessVersion = ", version={Accessed on " + currentIsoDateStr + "}"; const modifiedBibtex = bibtex.substring(0, bibtex.lastIndexOf("}")) + accessVersion + "}"; return modifiedBibtex; } function getBlob(text) { return new Blob([text], { type: "text/plain"}); } function clipboardAlert(text) { alert(text + "\nCopied to clipboard"); } function clipCitation(doi) { document.body.style.cursor = 'wait'; let url = "https://citation.doi.org/format?doi=" + doi.replace("https://doi.org/", "") + String.fromCodePoint(38) + "style=bibtex" + String.fromCodePoint(38) + "lang=en-US"; const text = new ClipboardItem({ "text/plain": fetch(url) .then(getResponseText) .then(getVersionedBibTeX) .then(getBlob) }); navigator.clipboard.write([text]); text.getType("text/plain") .then(getResponseText) .then(clipboardAlert); } function toggle_usa_banner_details() { const details = document.getElementById("usa-banner-details"); const indicator = document.getElementById("usa-banner-indicator"); if (details.style.display === "none") { details.style.display = "block"; indicator.textContent = "^"; } else { details.style.display = "none"; indicator.textContent = "v"; } } const monthName=new Array("January","February","March","April","May","June","July","August","September","October","November","December"); let currentDate = new Date(); let currentIsoDateStr = currentDate.toISOString().substring(0, 10); let currentDateStr = currentDate.getFullYear() + '-' + monthName[currentDate.getMonth()] + '-' + currentDate.getDate(); Data Access HAPI: CDAWeb HAPI Server HTTPS from SPDF CDAWeb WebService: CDAWeb Programmatic Data Access ICON Michelson Interferometer for Global High-resolution Thermospheric Imaging viewing direction A var authors='Harding, B. J.; Englert, C. R.; Harlander, J. M.; Marr, K. D.; Makela, J. M.; Brown, C. M.; England, S. L.; Immel, T. J.'; document.write(authors); (2023). ICON Michelson Interferometer for Global High-resolution Thermospheric Imaging viewing direction A. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/mjdw-td24. 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/ICON/MIGHTI/L2/A/Red/PT30S Description The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view nominally pointing 45 degrees and 135 degrees in azimuth from the spacecraft velocity (MIGHTI A and MIGHTI B). Combining data from both units, this 90 degrees separation between their views allows the wind vector to be determined. For the wind measurements MIGHTI observes the Doppler shift of the atomic oxygen red and green lines at 630.0 nm and 557.7 nm wavelength. The wavelength shift is measured using field-widened, temperature compensated Doppler Asymmetric Spatial Heterodyne (DASH) spectrometers, employing low order échelle gratings operating at two different orders for the different atmospheric lines. The temperature measurement is accomplished by a multichannel photometric measurement of the spectral shape of the molecular oxygen A-band around 762 nm wavelength. For each field of view, the signals of the two oxygen lines and the A-band are detected on different regions of a single, cooled, frame transfer charge coupled device (CCD) detector. On-board calibration sources are used to periodically quantify thermal drifts, simultaneously with observing the atmosphere. 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/ICON/MIGHTI/L2/A/Red/PT30S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName ICON Michelson Interferometer for Global High-resolution Thermospheric Imaging viewing direction A AlternateName MIGHTI A LOS Red DOI https://doi.org/10.48322/mjdw-td24 ReleaseDate 2026-07-21 12:05:18Z RevisionHistory RevisionEvent ReleaseDate 2023-08-01 00:00:00Z Note Added DOI and PublicationInfo minted by JMW on 20230801. Updated SPASE version. RevisionEvent ReleaseDate 2024-01-22 00:00:00Z Note Updated PublicationInfo Authors. JMW. RevisionEvent ReleaseDate 2024-05-02 00:00:00Z Note Edited AccessInformation. JMW RevisionEvent ReleaseDate 2025-10-02 15:11:59Z Note Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB RevisionEvent ReleaseDate 2025-12-04 13:29:31Z Note Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-06-26 13:17:47Z Note Add 'Z' to PublicationDate. ZCB RevisionEvent ReleaseDate 2026-07-21 12:05:18Z Note Added HelioData InformationURL. JWL Description The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view nominally pointing 45 degrees and 135 degrees in azimuth from the spacecraft velocity (MIGHTI A and MIGHTI B). Combining data from both units, this 90 degrees separation between their views allows the wind vector to be determined. For the wind measurements MIGHTI observes the Doppler shift of the atomic oxygen red and green lines at 630.0 nm and 557.7 nm wavelength. The wavelength shift is measured using field-widened, temperature compensated Doppler Asymmetric Spatial Heterodyne (DASH) spectrometers, employing low order échelle gratings operating at two different orders for the different atmospheric lines. The temperature measurement is accomplished by a multichannel photometric measurement of the spectral shape of the molecular oxygen A-band around 762 nm wavelength. For each field of view, the signals of the two oxygen lines and the A-band are detected on different regions of a single, cooled, frame transfer charge coupled device (CCD) detector. On-board calibration sources are used to periodically quantify thermal drifts, simultaneously with observing the atmosphere. Acknowledgement National Aeronautics and Space Administration; Dr. Brian J. Harding; Dr. Thomas Immel PublicationInfo Authors Harding, B. J.; Englert, C. R.; Harlander, J. M.; Marr, K. D.; Makela, J. M.; Brown, C. M.; England, S. L.; Immel, T. J. PublicationDate 2023-01-01 00:00:00Z PublishedBy Space Physics Data Facility Funding Agency National Aeronautics and Space Administration Project Explorers Program AwardNumber NNG12FA45C and NNG12FA42I Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/Brian.J.Harding 2. MetadataContact spase://SMWG/Person/James.M.Weygand InformationURL Name Additional information on ICON URL https://icon.ssl.berkeley.edu/ Description ICON spacecraft Homepage. InformationURL Name Michelson Interferometer for Global High-resolution Thermospheric Imaging (MIGHTI): instrument design and calibration URL https://doi.org/10.1007/s11214-017-0358-4 Description Space Science Reviews, 212(1-2), pp.553-584. DOI: 10.1007/s11214-017-0358-4 InformationURL Name HelioData URL https://helio.data.nasa.gov/dataset/ICON_MIGHTI_L2_A_Red_PT30S 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/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 ICON_L2-1_MIGHTI-A_LOS-WIND-RED Description Web Service to this product using the HAPI interface. Format NetCDF Acknowledgement Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. Please acknowledge the Data Providers and 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 HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/icon/l2/l2-1_mighti-a_los-wind-red/ ProductKey ICON_L2-1_MIGHTI-A_LOS-WIND-RED Description Access to Data in NetCDF Format via https from SPDF AccessURL Name CDAWeb URL https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ICON_L2-1_MIGHTI-A_LOS-WIND-RED&index=sp_phys ProductKey ICON_L2-1_MIGHTI-A_LOS-WIND-RED Description Access to NetCDFs via NASA/GSFC CDAWeb Format NetCDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/icon/l2/l2-1_mighti-a_los-wind-red/$Y AccessFilenameTemplate icon_l2-1_mighti-a_los-wind-red_$Y$m$d_v06r000.nc Acknowledgement Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. 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/ICON_L2-1_MIGHTI-A_LOS-WIND-RED/clientLibraryExample/ Style WebService ProductKey ICON_L2-1_MIGHTI-A_LOS-WIND-RED Description Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Format Binary Acknowledgement Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data. ProcessingLevel Calibrated ProviderName ICON MIGHTI team InstrumentIDs spase://SMWG/Instrument/ICON/MIGHTI MeasurementType Dopplergram TemporalDescription TimeSpan StartDate 2019-12-06 00:00:00Z StopDate 2022-11-24 23:59:59Z Cadence PT30S ObservedRegion Earth.NearSurface.Atmosphere ObservedRegion Earth.NearSurface.Ionosphere Parameter #1 Name Epoch time ParameterKey Epoch Description Sample time, midpoint of exposure. Number of msec since Jan 1, 1970. Cadence PT30S Units ms ValidMin 0 ValidMax 31536000000000 FillValue -9223372036854775806 Support Qualifier Magnitude SupportQuantity Temporal Parameter #2 Name Time ParameterKey ICON_L21_Time Description Sample time at start, mid, stop of exposure. Number of msec since Jan 1, 1970. Cadence PT30S Units ms ValidMin 0 ValidMax 31536000000000 FillValue -9223372036854775806 Support Qualifier Magnitude SupportQuantity Temporal Parameter #3 Name UTC time ParameterKey ICON_L21_UTC_Time Description Sample time, midpoint of exposure. Cadence PT30S Units date/time FillValue '' Support Qualifier Magnitude SupportQuantity Temporal Parameter #4 Name Line-of-Sight Wind Values ParameterKey ICON_L21_Line_of_Sight_Wind Description Line-of-sight horizontal wind profile. A positive wind is towards MIGHTI. Cadence PT30S Units m/s ValidMin -4000 ValidMax 4000 FillValue 9.969209968386869e+36 Particle ParticleType Molecule Qualifier LineOfSight ParticleQuantity FlowSpeed Parameter #5 Name Line-of-Sight Wind Errors ParameterKey ICON_L21_Line_of_Sight_Wind_Error Description Line-of-sight horizontal wind error profile. Cadence PT30S Units m/s ValidMin 0 ValidMax 4000 FillValue 9.969209968386869e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #6 Name Wind Quality Flag ParameterKey ICON_L21_Wind_Quality Description A quantification of the wind quality, from 0 (Bad) to 1 (Good). Cadence PT30S ValidMin 0 ValidMax 1 FillValue 9.969209968386869e+36 Support Qualifier Scalar SupportQuantity DataQuality Parameter #7 Name Fringe Amplitude Profile ParameterKey ICON_L21_Fringe_Amplitude Description Fringe amplitude profile. Cadence PT30S Units arb ValidMin -1e+30 ValidMax 1e+30 FillValue 9.969209968386869e+36 Support Qualifier Scalar SupportQuantity Other Parameter #8 Name Fringe Amplitude Error Profile ParameterKey ICON_L21_Fringe_Amplitude_Error Description Fringe amplitude error profile. Cadence PT30S Units arb ValidMin 0 ValidMax 1e+30 FillValue 9.969209968386869e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #9 Name Relative Volume Emission Rate ParameterKey ICON_L21_Relative_VER Description Relative volume emission rate profile. Cadence PT30S Units ph/cm^3/s ValidMin 0 ValidMax 1e+30 FillValue 9.969209968386869e+36 Wave WaveType Photon Qualifier LineOfSight WaveQuantity VolumeEmissionRate Parameter #10 Name Relative Volume Emission Rate Error ParameterKey ICON_L21_Relative_VER_Error Description Relative volume emission rate error profile. Cadence PT30S Units ph/cm^3/s ValidMin 0 ValidMax 1e+30 FillValue 9.969209968386869e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #11 Name Relative Volume Emission Rate Quality Flag ParameterKey ICON_L21_VER_Quality Description A quantification of the VER quality, from 0 (Bad) to 1 (Good). Cadence PT30S ValidMin 0 ValidMax 1 FillValue 9.969209968386869e+36 Support Qualifier Scalar SupportQuantity DataQuality Parameter #12 Name Altitude of Wind Sample ParameterKey ICON_L21_Altitude Description WGS84 altitude of each wind sample. Cadence PT30S Units km ValidMin 50 ValidMax 1000 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #13 Name Latitude of Wind Sample ParameterKey ICON_L21_Latitude Description WGS84 latitude of each wind sample. Cadence PT30S Units deg ValidMin -90 ValidMax 90 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #14 Name Longitude of Wind Sample ParameterKey ICON_L21_Longitude Description WGS84 longitude of each wind sample. Cadence PT30S Units deg ValidMin 0 ValidMax 360 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #15 Name Magnetic Latitude of Wind Sample ParameterKey ICON_L21_Magnetic_Latitude Description Magnetic quasi-dipole latitude of each wind sample. Cadence PT30S Units deg ValidMin -90 ValidMax 90 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #16 Name Magnetic Longitude of Wind Sample ParameterKey ICON_L21_Magnetic_Longitude Description Magnetic quasi-dipole longitude of each wind sample. Cadence PT30S Units deg ValidMin 0 ValidMax 360 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #17 Name Azimuth Angle of the Line of Sight ParameterKey ICON_L21_Line_of_Sight_Azimuth Description Azimuth angle of the line of sight at the tangent point. Deg East of North. Cadence PT30S Units degrees ValidMin 0 ValidMax 360 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #18 Name Solar Zenith Angle of Each Wind Sample ParameterKey ICON_L21_Solar_Zenith_Angle Description Solar zenith angle of each wind sample. Cadence PT30S Units degrees ValidMin 0 ValidMax 180 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #19 Name Local Solar Time of Each Wind Sample ParameterKey ICON_L21_Local_Solar_Time Description Local solar time of each wind sample. Cadence PT30S Units hours ValidMin 0 ValidMax 24 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #20 Name Exposure Time ParameterKey ICON_L21_Exposure_Time Description The exposure time for each profile Cadence PT30S Units s ValidMin 0 ValidMax 120 FillValue 9.969209968386869e+36 Support Qualifier Total SupportQuantity Temporal Parameter #21 Name Variance of the Phase ParameterKey ICON_L21_Chi2 Description Variance of the phase in each (unwrapped) row: (std of phase)^2. Cadence PT30S Units rad^2 ValidMin 0 ValidMax 1e+30 FillValue 9.969209968386869e+36 Support Qualifier Variance SupportQuantity Other Parameter #22 Name Velocity Vector ParameterKey ICON_L21_Observatory_Velocity_Vector Description ICON S/C velocity vector in Earth-centered, Earth-fixed coordinates. Cadence PT30S Units m/s ValidMin -100000000 ValidMax 100000000 FillValue 9.969209968386869e+36 Particle ParticleType Molecule Qualifier LineOfSight ParticleQuantity FlowSpeed Parameter #23 Name Latitude of the ICON S/C ParameterKey ICON_L21_Observatory_Latitude Description The WGS84 latitude of the ICON S/C. Cadence PT30S Units deg ValidMin -90 ValidMax 90 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #24 Name Longitude of the ICON S/C ParameterKey ICON_L21_Observatory_Longitude Description The WGS84 longitude of the ICON S/C. Cadence PT30S Units deg ValidMin 0 ValidMax 360 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #25 Name Altitude of the ICON S/C ParameterKey ICON_L21_Observatory_Altitude Description The WGS84 altitude of the ICON S/C...... Cadence PT30S Units km ValidMin 100 ValidMax 2000 FillValue 9.969209968386869e+36 Support Qualifier Direction SupportQuantity Positional Parameter #26 Name Line of Sight Direction of MIGHTI ParameterKey ICON_L21_Line_of_Sight_Vector Description The look direction of each MIGHTI line of sight, as a vector in ECEF. Cadence PT30S ValidMin -1 ValidMax 1 FillValue 9.969209968386869e+36 Support Qualifier Vector SupportQuantity Orientation Parameter #27 Name Orbit Number ParameterKey ICON_L21_Orbit_Number Description Orbit Number Cadence PT30S ValidMin 0 ValidMax 1000000 FillValue -9223372036854775806 Support Qualifier Scalar SupportQuantity Temporal Parameter #28 Name Orbit Node Flag ParameterKey ICON_L21_Orbit_Node Description Orbit Ascending/Descending Node Flag. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity Orientation Parameter #29 Name Number of Binned Raw Samples ParameterKey ICON_L21_Bin_Size Description How many raw samples were binned vertically for each reported sample. Cadence PT30S ValidMin 1 ValidMax 100 FillValue -127 Support Qualifier Scalar SupportQuantity Other Parameter #30 Name Integration Order ParameterKey ICON_L21_Integration_Order Description Order used to discretize the integral for inversion: 0=Riemann, 1=Trapezoidal. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Integral SupportQuantity Other Parameter #31 Name ICON Top Layer Model ParameterKey ICON_L21_Top_Layer_Model Description How the top altitudinal layer is handled in the inversion: "exp" or "thin." Cadence PT30S FillValue ' ' Support Qualifier Scalar SupportQuantity Other Parameter #32 Name Attitude of Local Vertical Local Horizontal Normal ParameterKey ICON_L21_Attitude_LVLH_Normal Description Attitude status bit 0: local vertical local horizontal Normal. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity DataQuality Parameter #33 Name Attitude of Local Vertical Local Horizontal Reverse ParameterKey ICON_L21_Attitude_LVLH_Reverse Description Attitude status bit 1: Local Vertical Local Horizontal Reverse. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity DataQuality Parameter #34 Name Attitude of Earth Limb Pointing Status ParameterKey ICON_L21_Attitude_Limb_Pointing Description Attitude status bit 2: Earth Limb Pointing. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity DataQuality Parameter #35 Name Attitude: Conjugate Maneuver Status ParameterKey ICON_L21_Attitude_Conjugate_Maneuver Description Attitude status bit 6: Conjugate Maneuver. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity DataQuality Parameter #36 Name Attitude Quality Flag ParameterKey ICON_L21_Quality_Flags Description Attitude quality flag. Cadence PT30S ValidMin 0 ValidMax 1 FillValue -127 Support Qualifier Scalar SupportQuantity DataQuality Parameter #37 Name Relative Volume Emission Rate (DC Value) ParameterKey ICON_L21_Relative_VER_DC Description Relative volume emission rate profile derived from DC value. Cadence PT30S Units ph/cm^3/s ValidMin 0 ValidMax 1e+30 FillValue 9.969209968386869e+36 Wave WaveType Photon Qualifier LineOfSight WaveQuantity VolumeEmissionRate