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/ICON/MIGHTI/L2/B/Green/PT30S NASA NumericalData ICON Michelson Interferometer for Global High-resolution Thermospheric Imaging viewing direction B MIGHTI B LOS Green https://doi.org/10.48322/s7j9-kn77 2025-12-04T13:29:31Z 2023-08-01T00:00:00Z Added DOI and PublicationInfo minted by JMW on 20230801. Updated SPASE version. 2024-01-22T00:00:00Z Updated PublicationInfo Authors. JMW. 2024-05-02T00:00:00Z Edited AccessInformation. JMW 2025-10-02T15:11:59Z 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 2025-12-04T13:29:31Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB 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. National Aeronautics and Space Administration; Dr. Brian J. Harding; Dr. Thomas Immel Harding, B. J.; Englert, C. R.; Harlander, J. M.; Marr, K. D.; Makela, J. M.; Brown, C. M.; England, S. L.; Immel, T. J. 2023-01-01T00:00:00 Space Physics Data Facility National Aeronautics and Space Administration Explorers Program NNG12FA45C and NNG12FA42I spase://SMWG/Person/Brian.J.Harding PrincipalInvestigator spase://SMWG/Person/James.M.Weygand MetadataContact Additional information on ICON https://icon.ssl.berkeley.edu/ ICON spacecraft Homepage. Michelson Interferometer for Global High-resolution Thermospheric Imaging (MIGHTI): instrument design and calibration https://doi.org/10.1007/s11214-017-0358-4 Space Science Reviews, 212(1-2), pp.553-584. DOI: 10.1007/s11214-017-0358-4 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 ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN Web Service to this product using the HAPI interface. NetCDF Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data. 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 HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/icon/l2/l2-1_mighti-b_los-wind-green/ ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN Access to Data in NetCDF Format via https from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN&index=sp_phys ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN Access to NetCDFs via NASA/GSFC CDAWeb NetCDF None https://cdaweb.gsfc.nasa.gov/pub/data/icon/l2/l2-1_mighti-b_los-wind-green/$Y icon_l2-1_mighti-b_los-wind-green_$Y$m$d_v05r000.nc Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. 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/ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN/clientLibraryExample/ ICON_L2-1_MIGHTI-B_LOS-WIND-GREEN Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary Please acknowledge Dr. Brian J. Harding and Dr. Thomas Immel. Please acknowledge the Data Providers and CDAWeb when using these Data. Calibrated ICON MIGHTI team spase://SMWG/Instrument/ICON/MIGHTI Dopplergram 2019-12-06T00:00:00Z 2022-11-24T23:59:59Z PT30S Earth.NearSurface.Atmosphere Earth.NearSurface.Ionosphere Epoch time Epoch Sample time, midpoint of exposure. Number of msec since Jan 1, 1970. PT30S ms 0 31536000000000 -9223372036854775806 Magnitude Temporal Time ICON_L21_Time Sample time at start, mid, stop of exposure. Number of msec since Jan 1, 1970. PT30S ms 0 31536000000000 -9223372036854775806 Magnitude Temporal UTC time ICON_L21_UTC_Time Sample time, midpoint of exposure. PT30S date/time '' Magnitude Temporal Line-of-Sight Wind Values ICON_L21_Line_of_Sight_Wind Line-of-sight horizontal wind profile. A positive wind is towards MIGHTI. PT30S m/s -4000 4000 9.969209968386869e+36 Molecule LineOfSight FlowSpeed Line-of-Sight Wind Errors ICON_L21_Line_of_Sight_Wind_Error Line-of-sight horizontal wind error profile. PT30S m/s 0 4000 9.969209968386869e+36 Uncertainty Other Wind Quality Flag ICON_L21_Wind_Quality A quantification of the wind quality, from 0 (Bad) to 1 (Good). PT30S 0 1 9.969209968386869e+36 Scalar DataQuality Fringe Amplitude Profile ICON_L21_Fringe_Amplitude Fringe amplitude profile. PT30S arb -1e+30 1e+30 9.969209968386869e+36 Scalar Other Fringe Amplitude Error Profile ICON_L21_Fringe_Amplitude_Error Fringe amplitude error profile. PT30S arb 0 1e+30 9.969209968386869e+36 Uncertainty Other Relative Volume Emission Rate ICON_L21_Relative_VER Relative volume emission rate profile. PT30S ph/cm^3/s 0 1e+30 9.969209968386869e+36 Photon LineOfSight VolumeEmissionRate Relative Volume Emission Rate Error ICON_L21_Relative_VER_Error Relative volume emission rate error profile. PT30S ph/cm^3/s 0 1e+30 9.969209968386869e+36 Uncertainty Other Relative Volume Emission Rate Quality Flag ICON_L21_VER_Quality A quantification of the VER quality, from 0 (Bad) to 1 (Good). PT30S 0 1 9.969209968386869e+36 Scalar DataQuality Altitude of Wind Sample ICON_L21_Altitude WGS84 altitude of each wind sample. PT30S km 50 1000 9.969209968386869e+36 Direction Positional Latitude of Wind Sample ICON_L21_Latitude WGS84 latitude of each wind sample. PT30S deg -90 90 9.969209968386869e+36 Direction Positional Longitude of Wind Sample ICON_L21_Longitude WGS84 longitude of each wind sample. PT30S deg 0 360 9.969209968386869e+36 Direction Positional Magnetic Latitude of Wind Sample ICON_L21_Magnetic_Latitude Magnetic quasi-dipole latitude of each wind sample. PT30S deg -90 90 9.969209968386869e+36 Direction Positional Magnetic Longitude of Wind Sample ICON_L21_Magnetic_Longitude Magnetic quasi-dipole longitude of each wind sample. PT30S deg 0 360 9.969209968386869e+36 Direction Positional Azimuth Angle of the Line of Sight ICON_L21_Line_of_Sight_Azimuth Azimuth angle of the line of sight at the tangent point. Deg East of North. PT30S degrees 0 360 9.969209968386869e+36 Direction Positional Solar Zenith Angle of Each Wind Sample ICON_L21_Solar_Zenith_Angle Solar zenith angle of each wind sample. PT30S degrees 0 180 9.969209968386869e+36 Direction Positional Local Solar Time of Each Wind Sample ICON_L21_Local_Solar_Time Local solar time of each wind sample. PT30S hours 0 24 9.969209968386869e+36 Direction Positional Exposure Time ICON_L21_Exposure_Time The exposure time for each profile PT30S s 0 120 9.969209968386869e+36 Total Temporal Variance of the Phase ICON_L21_Chi2 Variance of the phase in each (unwrapped) row: (std of phase)^2. PT30S rad^2 0 1e+30 9.969209968386869e+36 Variance Other Velocity Vector ICON_L21_Observatory_Velocity_Vector ICON S/C velocity vector in Earth-centered, Earth-fixed coordinates. PT30S m/s -100000000 100000000 9.969209968386869e+36 Molecule LineOfSight FlowSpeed Latitude of the ICON S/C ICON_L21_Observatory_Latitude The WGS84 latitude of the ICON S/C. PT30S deg -90 90 9.969209968386869e+36 Direction Positional Longitude of the ICON S/C ICON_L21_Observatory_Longitude The WGS84 longitude of the ICON S/C. PT30S deg 0 360 9.969209968386869e+36 Direction Positional Altitude of the ICON S/C ICON_L21_Observatory_Altitude The WGS84 altitude of the ICON S/C...... PT30S km 100 2000 9.969209968386869e+36 Direction Positional Line of Sight Direction of MIGHTI ICON_L21_Line_of_Sight_Vector The look direction of each MIGHTI line of sight, as a vector in ECEF. PT30S -1 1 9.969209968386869e+36 Vector Orientation Orbit Number ICON_L21_Orbit_Number Orbit Number PT30S 0 1000000 -9223372036854775806 Scalar Temporal Orbit Node Flag ICON_L21_Orbit_Node Orbit Ascending/Descending Node Flag. PT30S 0 1 -127 Scalar Orientation Number of Binned Raw Samples ICON_L21_Bin_Size How many raw samples were binned vertically for each reported sample. PT30S 1 100 -127 Scalar Other Integration Order ICON_L21_Integration_Order Order used to discretize the integral for inversion: 0=Riemann, 1=Trapezoidal. PT30S 0 1 -127 Integral Other ICON Top Layer Model ICON_L21_Top_Layer_Model How the top altitudinal layer is handled in the inversion: "exp" or "thin." PT30S ' ' Scalar Other Attitude of Local Vertical Local Horizontal Normal ICON_L21_Attitude_LVLH_Normal Attitude status bit 0: local vertical local horizontal Normal. PT30S 0 1 -127 Scalar DataQuality Attitude of Local Vertical Local Horizontal Reverse ICON_L21_Attitude_LVLH_Reverse Attitude status bit 1: Local Vertical Local Horizontal Reverse. PT30S 0 1 -127 Scalar DataQuality Attitude of Earth Limb Pointing Status ICON_L21_Attitude_Limb_Pointing Attitude status bit 2: Earth Limb Pointing. PT30S 0 1 -127 Scalar DataQuality Attitude: Conjugate Maneuver Status ICON_L21_Attitude_Conjugate_Maneuver Attitude status bit 6: Conjugate Maneuver. PT30S 0 1 -127 Scalar DataQuality Attitude Quality Flag ICON_L21_Quality_Flags Attitude quality flag. PT30S 0 1 -127 Scalar DataQuality Relative Volume Emission Rate (DC Value) ICON_L21_Relative_VER_DC Relative volume emission rate profile derived from DC value. PT30S ph/cm^3/s 0 1e+30 9.969209968386869e+36 Photon LineOfSight VolumeEmissionRate