<_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness. 2.6.1 <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/icon_l2-3_mighti-a_temperature_00000000_v01.json (from all.xml) spase://NASA/NumericalData/ICON/MIGHTI/L2/A/Temperature/PT30S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json ICON MIGHTI-A Level 2.3 Retrieved Temperature File <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description ICON explores the boundary between Earth and space - the ionosphere - to understand the physical connection between our world and the immediate space environment around us. Visit 'http://icon.ssl.berkeley.edu' for more details. <_Description>Source: Master/CDFglobalAttributes/TEXT This is a data product from the NASA Ionospheric Connection Explorer mission, an Explorer launched at 21:59:45 EDT on October 10, 2019, from Cape Canaveral AFB in the USA. Guidelines for the use of this product are described in the ICON Rules of the Road (http://icon.ssl.berkeley.edu/Data). Responsibility for the mission science falls to the Principal Investigator, Dr. Thomas Immel at UC Berkeley: Immel, T.J., England, S.L., Mende, S.B. et al. Space Sci Rev (2018) 214: 13. https://doi.org/10.1007/s11214-017-0449-2 Responsibility for the validation of the L1 data products falls to the instrument lead investigators/scientists. * EUV: Dr. Eric Korpela : https://doi.org/10.1007/s11214-017-0384-2 * FUV: Dr. Harald Frey : https://doi.org/10.1007/s11214-017-0386-0 * MIGHTI: Dr. Christoph Englert : https://doi.org/10.1007/s11214-017-0358-4, and https://doi.org/10.1007/s11214-017-0374-4 * IVM: Dr. Roderick Heelis : https://doi.org/10.1007/s11214-017-0383-3 Responsibility for the validation of the L2 data products falls to those scientists responsible for those products. * Daytime O and N2 profiles: Dr. Andrew Stephan : https://doi.org/10.1007/s11214-018-0477-6 * Daytime (EUV) O+ profiles: Dr. Andrew Stephan : https://doi.org/10.1007/s11214-017-0385-1 * Nighttime (FUV) O+ profiles: Dr. Farzad Kamalabadi : https://doi.org/10.1007/s11214-018-0502-9 * Neutral Wind profiles: Dr. Jonathan Makela : https://doi.org/10.1007/s11214-017-0359-3 * Neutral Temperature profiles: Dr. Christoph Englert : https://doi.org/10.1007/s11214-017-0434-9 * Ion Velocity Measurements : Dr. Russell Stoneback : https://doi.org/10.1007/s11214-017-0383-3 Responsibility for Level 4 products falls to those scientists responsible for those products. * Hough Modes : Dr. Chihoko Yamashita : https://doi.org/10.1007/s11214-017-0401-5 * TIEGCM : Dr. Astrid Maute : https://doi.org/10.1007/s11214-017-0330-3 * SAMI3 : Dr. Joseph Huba : https://doi.org/10.1007/s11214-017-0415-z Pre-production versions of all above papers are available on the ICON website. http://icon.ssl.berkeley.edu/Publications Overall validation of the products is overseen by the ICON Project Scientist, Dr. Scott England. NASA oversight for all products is provided by the Mission Scientist, Dr. Jeffrey Klenzing. Users of these data should contact and acknowledge the Principal Investigator Dr. Immel and the party directly responsible for the data product (noted above) and acknowledge NASA funding for the collection of the data used in the research with the following statement : "ICON is supported by NASA's Explorers Program through contracts NNG12FA45C and NNG12FA42I". These data are openly available as described in the ICON Data Management Plan available on the ICON website (http://icon.ssl.berkeley.edu/Data). <_Acknowledgement>Source: Master/CDFglobalAttributes/Acknowledgement <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ http://icon.ssl.berkeley.edu ICON Website All ICON information and data can be found at the <_Note>URL also in all.xml. Using master. Additional information on ICON https://icon.ssl.berkeley.edu/ ICON spacecraft Homepage. <_Note>Source: InformationURL.json 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 <_Note>Source: InformationURL.json https://doi.org/10.48322/d0qk-qc73 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2019-12-06T00:00:57Z 2022-11-24T23:58:57Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json spase://SMWG/Instrument/ICON/MIGHTI Dopplergram spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/icon/l2/l2-3_mighti-a_temperature In CDF via HTTP from CDAWeb icon_l2-3_mighti-a_temperature_%Y%m%d_v06r001.nc %Y ICON_L2-3_MIGHTI-A_TEMPERATURE CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/icon/l2/l2-3_mighti-a_temperature In CDF via HTTP from CDAWeb icon_l2-3_mighti-a_temperature_%Y%m%d_v06r001.nc %Y ICON_L2-3_MIGHTI-A_TEMPERATURE CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL CDAWeb Web Service https://cdaweb.gsfc.nasa.gov/WebServices/ Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made. ICON_L2-3_MIGHTI-A_TEMPERATURE CDF CSV GIF NetCDF PNG PS PDF XML x_Script.IDL x_Script.Python Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=ICON_L2-3_MIGHTI-A_TEMPERATURE ICON_L2-3_MIGHTI-A_TEMPERATURE Web service user interface for this product. CDF GIF PDF Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/ICON_L2-3_MIGHTI-A_TEMPERATURE/clientLibraryExample/ ICON_L2-3_MIGHTI-A_TEMPERATURE Web service that generates a Python script to access this product. x_Script.IDL x_Script.Python spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/SSCWeb. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=ICON_L2-3_MIGHTI-A_TEMPERATURE ICON_L2-3_MIGHTI-A_TEMPERATURE Web Service to this product. HTML spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=ICON_L2-3_MIGHTI-A_TEMPERATURE ICON_L2-3_MIGHTI-A_TEMPERATURE Web Service to this product using the HAPI interface. CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=ICON_L2-3_MIGHTI-A_TEMPERATURE&return=script ICON_L2-3_MIGHTI-A_TEMPERATURE Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. x_Script.IDL x_Script.Javascript x_Script.MATLAB x_Script.Python x_Script.Autoplot x_Script.curl x_Script.wget spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: T. J. Immel at UC Berkeley>SSL HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=ICON_L2-3_MIGHTI-A_TEMPERATURE&format=gallery ICON_L2-3_MIGHTI-A_TEMPERATURE Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Ionospheric Connection Explorer (from all.xml/observatory/description/@short) Michelson Interferometer for Global High resolution imaging of the Thermosphere and Ionosphere (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Ionospheric Science (from Master/CDFglobalAttributes/Discipline) ICON (from Master/CDFglobalAttributes/Source_name) Ionospheric Connection Explorer (from Master/CDFglobalAttributes/Source_name) DP23 (from Master/CDFglobalAttributes/Data_type) Data Product 2.3: MIGHTI Retrieved Temperatures and Brightnesses (from Master/CDFglobalAttributes/Data_type) MIGHTI-A (from all.xml/instrument/@ID) Earth.NearSurface.Atmosphere Earth.NearSurface.Ionosphere time_epoch Epoch_cdf CATDESC: 'time_inboard'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' seconds since 1970-01-01 00:00:00 Scalar Temporal A-Band Temperatures ICON_L23_MIGHTI_A_Temperature Master CDF CATDESC: 'Derived A-Band Temperatures'. Master CDF VAR_NOTES: 'Derived temperatures from A band by altitude. Temperatures are retrieved from the rotational distribution of emission lines in the O2 A band. The measurement is made at 5 spectral channels. 3 channels measure the A band and 2 others on either side of the band measure a background, which is subtracted from the 3 signal channels. An entire altitude profile is observed simultaneously. An onion-peeling inversion is used on the raw observations to remove the effects of the integration along the line of sight. See Stevens et al. (Space Science Reviews (2018) 214:4. https://doi.org/10.1007/s11214-017-0434-9). O2 A band spectra are pre-calculated from 100-400 K in 20 K increments based on the HITRAN 2016 database [Gordon et al., JQSRT (2017), 203:3-69.https://doi.org/10.1016/j.jqsrt.06.038] and smoothed filter functions with FWHM of ~2.0 nm. The filter functions are based on Gaussian fits to laboratory measurements and are a function of channel, row (altitude), and column. The fits are separately done for each pixel as a function of peak wavenumber (wavelength), width, and transmittance. For each of the three signal channels the fitted Gaussians are co-added over 51 pixels where the transmittance is largest for a representative filter function for that channel. The transmittances are not absolutely calibrated in photometric units, but the relative transmittance between channels and between detectors is maintained, which allows for the retrieval of temperature at the tangent altitude.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' K -1e+31 18 Temp Bias Uncert ICON_L23_MIGHTI_A_Temperature_Bias_Uncertainty Master CDF CATDESC: 'Bias (systematic) uncertainties in derived temperatures by altitude.'. Master CDF VAR_NOTES: 'Estimated bias uncertainties in derived temperatures by altitude; aka systematic uncertainties. These uncertainties are present in each temperature profile and are primarily due to 1) a 1 cm-1 uncertainty in the common shift applied to pre-flight laboratory determined filter positions. This uncertainty was tested in the retrieval and a derived fixed uncertainty of 12 K is propagated at all altitudes and 2) the lack of measurements above the top altitude sampled, and altitude dependent, with the topmost altitudes of the retrieval affected the most. The temperature bias uncertainty is found by a root sum square of these two. At most altitudes the estimated bias uncertainty is dominated by the uncertainty in the common shift. The systematic bias is the same at all altitudes for daytime images or nighttime images. However, the bias can be different for daytime images and nighttime images. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' K -1e+31 18 Temp Stat Uncertainties ICON_L23_MIGHTI_A_Temperature_Statistical_Uncertainty Master CDF CATDESC: 'Statistical (1-sigma) uncertainties in derived temperature by altitude.'. Master CDF VAR_NOTES: 'Statistical uncertainties (one sigma) in derived temperatures by altitude'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' K -1e+31 18 Total Temp Bias Uncert ICON_L23_MIGHTI_A_Temperature_Total_Uncertainty Master CDF CATDESC: 'Total uncertainties in derived temperatures by altitude'. Master CDF VAR_NOTES: 'Total uncertainties in derived temperatures by altitude: Here the statistical temperature uncertainty has been linearly added to the estimated temperature bias.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' K -1e+31 18 Bad Cal File Flag ICON_L1_MIGHTI_A_Quality_Flag_Bad_Calibration Master CDF CATDESC: 'Quality Flag indicating an inappropriate calibration file has been used or was missing'. Master CDF VAR_NOTES: 'Quality Flag indicating an inappropriate calibration file has been used or was missing'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1e+31 SAA Flag ICON_L1_MIGHTI_A_Quality_Flag_South_Atlantic_Anomaly Master CDF CATDESC: 'Quality Flag indicating that the spacecraft is within the South Atlantic Anomaly'. Master CDF VAR_NOTES: 'Quality Flag indicating that the spacecraft is within the South Atlantic Anomaly (0 = not in SAA)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1e+31 A Band Intensity Scaled ICON_L23_MIGHTI_A_ABand_Intensity_Scaled Master CDF CATDESC: 'Derived scaling of O2 A Band to Radiances by altitude.'. Master CDF VAR_NOTES: 'Derived common scaling of O2 A Band radiances in the 3 signal channels by altitude. Calculated forward radiances are fit to the observations from each of the three signal channels. The scaling is done at each tangent altitude separately and interatively until a best fit solution is found. The intensity of each signal channel relative to the other two determines the temperature, so the scale factor is unitless. The scaling is derived using pre-calculated spectra from the HITRAN 2016 database [Gordon et al., JQSRT, 203, 3-69 (2017)].'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1e+31 18 Uncertainty (1-sigma) in A Band Intensity Scaled ICON_L23_MIGHTI_A_ABand_Intensity_Scaled_Uncertainty Master CDF CATDESC: 'Uncertainty in Scaling of O2 A Band to Radiances by altitude.'. Master CDF VAR_NOTES: 'Derived uncertainty (1-sigma) in derived common scaling of O2 A Band to emergent intensity by altitude.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1e+31 18 Background Signal per filter ICON_L23_MIGHTI_A_Background_Signal Master CDF CATDESC: 'Background Signal by filter by altitude and filter. This has been corrected for flatfield effects across the detector.'. Master CDF VAR_NOTES: 'Background Signal by altitude and filter. This background is interpolated across the 3 signal channels from two background channels located spectrally on either side of the O2 A band.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Background Signal per filter ICON_L23_MIGHTI_A_Background_Signal_M Master CDF CATDESC: '---> Movie of above'. Master CDF VAR_NOTES: 'Background Signal by altitude and filter. This background is interpolated across the 3 signal channels from two background channels located spectrally on either side of the O2 A band.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Background Slope ICON_L23_MIGHTI_A_Background_Slope Master CDF CATDESC: 'Derived Slope of Subtracted Background.'. Master CDF VAR_NOTES: 'Derived slope of subtracted background. The slope of the background is saved here for diagnostic purposes. It is calculated by taking the difference of the flatfielded signal from the two background channels and dividing by the difference of the the channel center wavelengths (in nm) of the two background channels (approximately 780 nm - 754 nm). This is done explicitly by [bg2 - bg1]/flatfield/[wavelength2 - wavelength1], where bg2 and bg1 are the observed background signals in electrons.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' /nm -1e+31 18 BORE/SUN angle ICON_L23_MIGHTI_A_Boresight_Sun_Angle Master CDF CATDESC: 'Total boresight to sun angle'. Master CDF VAR_NOTES: 'Total boresight to sun angle'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees -1e+31 FOV azimuth ICON_L23_MIGHTI_A_Field_of_View_Azimuth_Angle Master CDF CATDESC: 'Field of view azimuth angle'. Master CDF VAR_NOTES: 'Field of view azimuth angle'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees -1e+31 18 Filter Center WL ICON_L23_MIGHTI_A_Filter_Center_Wavelength Master CDF CATDESC: 'Filter Center Wavelength'. Master CDF VAR_NOTES: 'Filter Center Wavelength used in temperature retrieval (=1e7/FilterCWN).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' nm -1e+31 5 18 Filter Center WN ICON_L23_MIGHTI_A_Filter_Center_Wavenumber Master CDF CATDESC: 'Filter Center Wavenumber'. Master CDF VAR_NOTES: 'Filter Center Wavenumber used in temperature retrieval as measured in the laboratory and fitted by a Gaussian. These filter center wavenumbers vary with detector (MIGHTI A and MIGHTI B), with altitude as well as with channel. They are also difference for daytime and nighttime operations. It is from these center wavenumbers that the common wavenumber shift (across all channels) is calculated.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' cm^-1 -1e+31 5 18 Filter wavenumber shift ICON_L23_MIGHTI_A_Filter_Wavenumber_Shift Master CDF CATDESC: 'Common shift of all filter center wavenumbers due to temperature by altitude'. Master CDF VAR_NOTES: 'Common shift of all filter center wavenumbers due to thermal drift that is added to laboratory measured filter center wavenumbers. The three channels measuring the A band overdetermines the temperature such that the wavenumber registration due to any thermal drift of the instrument can be additionally inferred. This is typically fixed with altitude and determined (along with temperature) from the signal originating from the O2 A band as measured from 3 signal channels. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' cm^-1 -1e+31 18 Filter wavenumber shift uncertainty ICON_L23_MIGHTI_A_Filter_Wavenumber_Shift_Uncertainty Master CDF CATDESC: 'Uncertainty (1-sigma) in the shift of all filter center wavenumbers by altitude.'. Master CDF VAR_NOTES: 'Uncertainties (1-sigma) in the shift of all filter center wavenumbers. If the common wavenumber shift is fixed with altitude and prescribed, then this uncertainty is zero everywhere.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' cm^-1 -1e+31 18 GPS Time ICON_L23_MIGHTI_A_GPS_Time Master CDF CATDESC: 'ms since 1980-01-06 00:00:00 TAI (coincident with UTC) at middle of image integration.'. Master CDF VAR_NOTES: 'ms since 1980-01-06 00:00:00 TAI (coincident with UTC) at middle of image integration. Derived from original GPS values reported from spacecraft (Time_GPS_Seconds and Time_GPS_Subseconds). Time calculation is offset by 615ms (flush time) for the first image in the series and for all other images are adjusted by subtracting (integration time + 308 ms) from the reported GPS time.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1e+31 Clock GPS Time Offset ICON_L23_MIGHTI_A_GPS_Time_Subseconds Master CDF CATDESC: '20MHz clock (50 nanosecond) offset from GPS seconds.'. Master CDF VAR_NOTES: 'GPS Time in sub seconds, 50 nanosecond offset from GPS seconds from 20 MHz clock.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' 50 Nanoseconds -1e+31 GPS Time ICON_L23_MIGHTI_A_Integration_Time Master CDF CATDESC: 'Time to integrate MIGHTI-A region of interest (ROI) image.'. Master CDF VAR_NOTES: 'MIGHTI Integration Time in millieconds'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' ms -1e+31 Rel Radiance per filter ICON_L23_MIGHTI_A_Relative_Radiance Master CDF CATDESC: 'Relative radiance by filter by altitude'. Master CDF VAR_NOTES: 'Observed relative radiance by filter and altitude. The retrieval is based on a forward modeling approach to these observed radiances as reported in electrons/s from the MIGHTI L1 product. These are converted to electrons based on the integration time during day (30 s) or night (60 s).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Rel Radiance per filter ICON_L23_MIGHTI_A_Relative_Radiance_M Master CDF CATDESC: '---> movie of above'. Master CDF VAR_NOTES: 'Observed relative radiance by filter and altitude. The retrieval is based on a forward modeling approach to these observed radiances as reported in electrons/s from the MIGHTI L1 product. These are converted to electrons based on the integration time during day (30 s) or night (60 s).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Uncertainty in Rel Radiance per filter ICON_L23_MIGHTI_A_Relative_Radiance_Uncertainty Master CDF CATDESC: 'Uncertainty in relative radiance by filter and altitude.'. Master CDF VAR_NOTES: 'Uncertainty (1-sigma) in relative radiance by filter by altitude and filter. These are calculated by taking the square root of the total number of electrons in each of the three signal channels, which are 51 pixels wide for MIGHTI-A or MIGHTI-B (day or night).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Uncertainty in Rel Radiance per filter ICON_L23_MIGHTI_A_Relative_Radiance_Uncertainty_M Master CDF CATDESC: '---> movie of above'. Master CDF VAR_NOTES: 'Uncertainty (1-sigma) in relative radiance by filter by altitude and filter. These are calculated by taking the square root of the total number of electrons in each of the three signal channels, which are 51 pixels wide for MIGHTI-A or MIGHTI-B (day or night).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' Electrons -1e+31 18 5 Tangent altitude ICON_L23_MIGHTI_A_Tangent_Altitude Master CDF CATDESC: 'Tangent point altitude'. Master CDF VAR_NOTES: 'Tangent point altitudes. These altitudes are the tangent altitude of the line of sight of each pixel.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' km -1e+31 18 Tangent latitudes ICON_L23_MIGHTI_A_Tangent_Latitude Master CDF CATDESC: 'Tangent point latitudes by altitude'. Master CDF VAR_NOTES: 'Tangent point latitudes by altitude. Note that these are a function of both epoch and altitude. Note also that due to the nature of the limb observations these latitudes are typically an average over many hundreds of kilometers.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees North -1e+31 18 LST at tan pt ICON_L23_MIGHTI_A_Tangent_Local_Solar_Time Master CDF CATDESC: 'Local solar time at tangent point'. Master CDF VAR_NOTES: 'Local solar time (0-24 h) at tangent point calculated using the equation of time. LST is a function of both epoch and altitude.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' hour -1e+31 18 Tangent longitudes ICON_L23_MIGHTI_A_Tangent_Longitude Master CDF CATDESC: 'Tangent point longitudes by altitude'. Master CDF VAR_NOTES: 'Tangent point longitudes (0-360) by altitude. Note that these are a function of both epoch and altitude. Note also that due to the nature of the limb observations these longitudes are typically an average over many hundreds of kilometers.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees East -1e+31 18 Tangent magnetic latitudes ICON_L23_MIGHTI_A_Tangent_Magnetic_Latitude Master CDF CATDESC: 'Tangent point magnetic latitudes by altitude.'. Master CDF VAR_NOTES: 'Tangent point magnetic latitudes by altitude. Quasi-dipole latitude and longitude are calculated using the fast implementation developed by Emmert et al. (2010, doi:10.1029/2010JA015326) and the Python wrapper apexpy (doi.org/10.5281/zenodo.1214207). Quasi-dipole longitude is defined such that zero occurs where the geodetic longitude is near 285 deg east (depending on latitude). Note that these are a function of both epoch and altitude. Note also that due to the nature of the limb observations these latitudes are typically an average over many hundreds of kilometers.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees North -1e+31 18 Tangent magnetic longitudes ICON_L23_MIGHTI_A_Tangent_Magnetic_Longitude Master CDF CATDESC: 'Tangent point magnetic longitudes (0-360) by altitude.'. Master CDF VAR_NOTES: 'Tangent point magnetic longitudes by altitude. Quasi-dipole latitude and longitude are calculated using the fast implementation developed by Emmert et al. (2010, doi:10.1029/2010JA015326) and the Python wrapper apexpy (doi.org/10.5281/zenodo.1214207). Quasi-dipole longitude is defined such that zero occurs where the geodetic longitude is near 285 deg east (depending on latitude). Note that these are a function of both epoch and altitude. Note also that due to the nature of the limb observations these longitudes are typically an average over many hundreds of kilometers.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees East -1e+31 18 SZA at tan pt ICON_L23_MIGHTI_A_Tangent_Solar_Zenith_Angle Master CDF CATDESC: 'Solar zenith angle at tangent point'. Master CDF VAR_NOTES: 'Solar zenith angle at tangent point. SZA is a function of both epoch and altitude. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees -1e+31 18 TEC Cold ICON_L23_MIGHTI_A_Thermal_Electric_Cooler_Cold_Temperature Master CDF CATDESC: 'Cold-side temperature of the thermoelectric cooler attached to the camera head'. Master CDF VAR_NOTES: 'Cold-side temperature of the thermoelectric cooler attached to the camera head'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' C -1e+31 UTC Time ICON_L23_MIGHTI_A_UTC_Time Master CDF CATDESC: 'ISO 9601 formatted UTC timestamp (at middle of image integration).'. Master CDF VAR_NOTES: 'This variable is the same as Epoch but is formatted as a human-readable string.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' SC Altitude ICON_L23_Observatory_Altitude Master CDF CATDESC: 'Spacecraft altitude at middle of exposure'. Master CDF VAR_NOTES: 'Spacecraft altitude at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' km -1e+31 SC Latitude ICON_L23_Observatory_Latitude Master CDF CATDESC: 'Spacecraft latitude at middle of exposure'. Master CDF VAR_NOTES: 'Spacecraft latitude at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees North -1e+31 SC LST ICON_L23_Observatory_Local_Solar_Time Master CDF CATDESC: 'Spacecraft local solar time at middle of exposure'. Master CDF VAR_NOTES: 'Spacecraft local solar time (0-24) at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' hour -1e+31 SC Longitude ICON_L23_Observatory_Longitude Master CDF CATDESC: 'Spacecraft longitude at middle of exposure'. Master CDF VAR_NOTES: 'Spacecraft longitude (0-360) at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees East -1e+31 SC SZA ICON_L23_Observatory_Solar_Zenith_Angle Master CDF CATDESC: 'Spacecraft solar zenith angle at middle of exposure'. Master CDF VAR_NOTES: 'Spacecraft solar zenith angle at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' degrees -1e+31 Node Flag ICON_L23_Orbit_Node Master CDF CATDESC: 'Flag indicating that the spacecraft is ascending (0) or descending (1) node'. Master CDF VAR_NOTES: 'Flag indicating that the spacecraft is ascending (0) or descending (1) node.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -1 Orbit number ICON_L23_Orbit_Number Master CDF CATDESC: 'Integer orbit number at middle of exposure'. Master CDF VAR_NOTES: 'Integer orbit number at middle of exposure'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_cdf.' -999