<_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/i1_av_all_00000000_v01.json (from all.xml) spase://NASA/NumericalData/ISIS1/SFS/Ionogram/PT29S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json ISIS-1 Topside sounder ionograms, all stations merged into a single dataset <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description i1_av_all <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source This ionogram was digitized from the original ISIS 1 analog telemetry data on 7-track tape using the facilities of the Data Evaluation Laboratory at GSFC (Code 500). This data restoration project is headed by Dr. R.F. Benson (GSFC, Code 692). Ionograms were digitized at the rate of 40,000 16-bit samples/sec. This sample rate is higher than the Nyquist frequency of 30 kHz. The sample frequency of 40 kHz provides a measurement every 25 microseconds corresponding to an apparent range (c*t/2) interval of 3.747 km. Each ionogram consists of a fixed-frequency and and a swept-frequency portion. The time resolution is typically 24 seconds. More information can be found at https://nssdc/space/isis/isis-status.html <_Description>Source: Master/CDFglobalAttributes/TEXT <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ https://spdf.gsfc.nasa.gov/isis/isis-status.html ISIS/Alouette Topside Sounder Data Restoration Project site. More information available at the <_Note>URL also in all.xml. Using master. ISIS/Alouette Topside Sounder Data Restoration Project https://nssdc.gsfc.nasa.gov/space/isis/isis-status.html ISIS/Alouette page maintained by NASA GSFC with science and instrument descriptions, data access, software, and publication lists en <_Note>Source: InformationURL.json NSSDC's Master Catalog https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1969-009A-01 Information about the Sweep Frequency Sounder experiment on ISIS-1. <_Note>Source: InformationURL.json Topside Sounder Ionogram <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 1969-01-30T14:50:12Z 1983-12-30T15:19:33Z <_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/ISIS1/SFS spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: R.F. Benson at NASA GSFC HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/isis/topside_sounder/ionogram_cdf/isis1/all In CDF via HTTP from CDAWeb i1_av_all_%Y%j%H%M%S_%Q.cdf %Y/%j I1_AV_ALL CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: R.F. Benson at NASA GSFC FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/isis/topside_sounder/ionogram_cdf/isis1/all In CDF via HTTP from CDAWeb i1_av_all_%Y%j%H%M%S_%Q.cdf %Y/%j I1_AV_ALL CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: R.F. Benson at NASA GSFC 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. I1_AV_ALL 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: R.F. Benson at NASA GSFC CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=I1_AV_ALL I1_AV_ALL 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: R.F. Benson at NASA GSFC CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/I1_AV_ALL/clientLibraryExample/ I1_AV_ALL 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: R.F. Benson at NASA GSFC 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=I1_AV_ALL I1_AV_ALL 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: R.F. Benson at NASA GSFC CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=I1_AV_ALL@0 Web Service to this product using the HAPI interface. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 2 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index <=> CDF file time variable pairs are @0 => Epoch2d, @1 => Epoch.) I1_AV_ALL@0 I1_AV_ALL@1 CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: R.F. Benson at NASA GSFC CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=I1_AV_ALL@0&return=script 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. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 2 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index <=> CDF file time variable pairs are @0 => Epoch2d, @1 => Epoch.) I1_AV_ALL@0 I1_AV_ALL@1 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: R.F. Benson at NASA GSFC HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=I1_AV_ALL@0&format=gallery Web Service that generates plots. See https://hapi-server.org/plot/ for the API. I1_AV_ALL@0 I1_AV_ALL@1 PNG PDF SVG International Satellite for Ionosphere Studies 1 (from all.xml/observatory/description/@short) all stations merged (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Ionospheric Science (from Master/CDFglobalAttributes/Discipline) ISIS-1 (from Master/CDFglobalAttributes/Source_name) International Satellite for Ionosphere Studies 1 (from Master/CDFglobalAttributes/Source_name) AV (from Master/CDFglobalAttributes/Data_type) Average Ionogram (from Master/CDFglobalAttributes/Data_type) MERGEDSTATIONS (from all.xml/instrument/@ID) Earth.NearSurface.AuroralRegion Earth.Magnetosphere Earth.NearSurface.Ionosphere Earth.NearSurface.EquatorialRegion Earth.NearSurface.Ionosphere.Topside Earth.Magnetosphere.Polar Earth.NearSurface.PolarCap Earth.NearSurface Waves.Active Spectrum Time (image) Epoch2d CATDESC: 'Time (image)'. 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.' ms Scalar Temporal Relative Amplitude (image) ampl2d Master CDF CATDESC: 'IONOGRAM: expandable thumbnails of color-coded relative amplitude (0-255) on ionogram time (x) vs. apparent range from satellite down (y) grid'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch2d.' -128 1300 335 Time Epoch CATDESC: 'Time'. 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.' ms Scalar Temporal Relative Amplitude ampl Master CDF CATDESC: 'IONOGRAM: continuous-film display of color-coded relative amplitude (0-255) on ionogram time (x) vs. apparent range from satellite down (y) grid'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -128 335 interpolated frequencies freq Master CDF CATDESC: '-- Sounder frequency in MHz (incl. fixed and swept frequency parts) - ONLY positively identified frequencies are shown'. Master CDF VAR_NOTES: 'This variable could be used as x-axis on amplitude spectrograms if fixed part is subtracted.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' MHz -1e+31 start of swept portion swept_start Master CDF CATDESC: '-- Scan line number of start of swept portion (before is fixed portion)'. Master CDF VAR_NOTES: 'seperates the fixed and swept portions '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Electron Gyrofrequency mergedFH Master CDF CATDESC: '-- Electron Gyrofrequency in MHz'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' MHz -1e+31 height height Master CDF CATDESC: 'ORBIT PARAMETERS: Satellite altitude in km'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 latitude) lat Master CDF CATDESC: '-- Latitude (-90 to 90) in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 longitude) lon Master CDF CATDESC: '-- Longitude (-180 to 180) in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 geom latitude GMLAT Master CDF CATDESC: '-- Geomagnetic latitude in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 geom longitude GMLONG Master CDF CATDESC: '-- Geomagnetic longitude (-180 to 180) in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 magnetic inclination DIP Master CDF CATDESC: '-- Magnetic inclination (Dip angle of magnetic field direction) in degrees'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -2147483648 inv latitude INV_LAT Master CDF CATDESC: '-- Invariant latitude in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 L shell (McIlwain parameter) L Master CDF CATDESC: '-- L shell (McIlwain parameter)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -1e+31 Solar Zenith Angle CHI Master CDF CATDESC: '-- Solar zenith angle in degree'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -2147483648 Local Mean Time in decimal hours LMT Master CDF CATDESC: '-- Local Mean Time (LMT) in decimal hours'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' hour -1.0 Geomagnetic Local Time GMLMT Master CDF CATDESC: '-- Geomagnetic Local Time in decimal hours'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -1.0 spacecraft in/out sunlight sun Master CDF CATDESC: '-- Spacecraft in(=1)/out(=2) sunlight '. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 satellite ID satellite Master CDF CATDESC: 'CODES & MODES: Satellite-ID: 1=Alouette-1, 2=Aloutte-2, 3=ISIS-1, 4=ISIS-2'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 telemetry station code station_id Master CDF CATDESC: '-- Telemetry station ID (nn) (https://nssdc.gsfc.nasa.gov/space/isis/isis-table1-new.html'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 transmitter power code power_code Master CDF CATDESC: '-- Transmitter power code: 1=Prim(400W) 2=Sec(400W)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 sounder/receiver code sr_code Master CDF CATDESC: '-- Sounder/receiver code: 0 = off, 1 = on'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 pulse per second code pps_code Master CDF CATDESC: '-- Pulses per second code: 0 = 30 pps, 1 = 60 pps '. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 DMODE code DMODE Master CDF CATDESC: '-- DMODE (transmitter on/off for alternate frame pairs): 0 = off, 1 = on'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 GMODE code GMODE Master CDF CATDESC: '-- GMODE (transmission of alternate frames of swept and fixed frequency): 0 = off, 1 = on'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 sounder mixed mode mixed_mode Master CDF CATDESC: '-- MMODE (sounder mixed mode): 0 = off, 1 = on'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 fixed frequency code (0-6) fix_freq Master CDF CATDESC: '-- Fixed frequency code: 0=off, 1=0.25, 2=0.48, 3=1.00, 4=1.95, 5=4.00, 6=9.303 MHz'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Cyl. Electrost. Probe CEP Master CDF CATDESC: '-- Cylindrical Electrostatic Probe (CEP) on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 0.05-30 kHz VLF receiver VLF Master CDF CATDESC: '-- VLF (0.05-30 kHz) instrument on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Spherical Electrostatic Analyzer SEA Master CDF CATDESC: '-- Spherical Electrostatic Analyzer on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Ion Mass Spectrometer 1 IMS1 Master CDF CATDESC: '-- Ion Mass Spectrometer 1 on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Ion Mass Spectrometer 2 IMS2 Master CDF CATDESC: '-- Ion Mass Spectrometer 2 on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Soft Particle Spectrometer SPS Master CDF CATDESC: '-- Soft Particle Spectrometer on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Energetic Particle Detector EPD Master CDF CATDESC: '-- Energetic Particle Detector on(1)/off(0)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Apparent Range v_height Master CDF CATDESC: 'virtual height corresponding to delay time'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 335