<_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/c4_cp_whi_natural_00000000_v01.json (from all.xml) <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Electric Spectral Power Density <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description C4_CP_WHI_NATURAL <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source The Wave of HIgh frequency and Sounder for Probing of Electron densityby Relaxation (WHISPER) performs the measurement of the electron densityon the four satellites of the CLUSTER project. The two main purposes ofthe WHISPER experiment are to record the natural waves and to make adiagnostic of the electron density using the sounding technique.The various working modes and the fourier transforms calculated on boardprovide a good frequency resolution obtained in the bandwidth 2-83 kHz.Onboard data compression by the Digital Wave Processing (DWP) intrumentallows a good dynamic and level resolution of the electric signal amplitude. <_Description>Source: Master/CDFglobalAttributes/TEXT <_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/ Please acknowledge the WHISPER team and the ESA Cluster Archive in any publication based upon use of this data. Digital Object Identifier for the WHISPER archive: https://doi.org/10.5270/esa-6stdo07 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2000-10-25T21:35:55Z 2024-09-30T23:43:00Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT0.856S <_Cadence>Counts based on variable 'time_tags__C4_CP_WHI_NATURAL' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/cluster/c4/whi/efield_spectralpowerdensity_naturalmode/2000/c4_cp_whi_natural_20001025_v20150715.cdf. The most common cadence, 856 [ms] = PT0.856S, occurred for 48.6486% of the 54 timesteps. <_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/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Pierre Henri at LPC2E HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/cluster/c4/whi/efield_spectralpowerdensity_naturalmode In CDF via HTTP from CDAWeb c4_cp_whi_natural_%Y%m%d_v%Q.cdf %Y C4_CP_WHI_NATURAL CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Pierre Henri at LPC2E FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/cluster/c4/whi/efield_spectralpowerdensity_naturalmode In CDF via HTTP from CDAWeb c4_cp_whi_natural_%Y%m%d_v%Q.cdf %Y C4_CP_WHI_NATURAL CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Pierre Henri at LPC2E 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. C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=C4_CP_WHI_NATURAL C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/C4_CP_WHI_NATURAL/clientLibraryExample/ C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=C4_CP_WHI_NATURAL C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=C4_CP_WHI_NATURAL C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=C4_CP_WHI_NATURAL&return=script C4_CP_WHI_NATURAL 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: Pierre Henri at LPC2E HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=C4_CP_WHI_NATURAL&format=gallery C4_CP_WHI_NATURAL Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Cluster Satellite No 4 (from all.xml/observatory/description/@short) Relaxation sounder (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) C4 (from Master/CDFglobalAttributes/Source_name) Cluster Satellite No 4 (from Master/CDFglobalAttributes/Source_name) CP (from Master/CDFglobalAttributes/Data_type) CAA_Parameter (from Master/CDFglobalAttributes/Data_type) WHI_NATURAL (from all.xml/instrument/@ID) Earth.Magnetosphere.Magnetotail Earth.Magnetosphere Earth.Magnetosheath Earth.NearSurface.AuroralRegion Earth.NearSurface.Ionosphere Earth.Magnetosphere.Main Earth.NearSurface.Plasmasphere Earth.Magnetosphere.Polar Heliosphere.NearEarth Heliosphere.Inner Earth.NearSurface.PolarCap Earth.Magnetosphere.RadiationBelt Universal Time time_tags__C4_CP_WHI_NATURAL CATDESC: 'Interval centred time tag'. 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 Delta Delta__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Half of the sampling duration + the uncertainty of the time tags (in seconds)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' s -1.0 Fast Fourier Transform Size fft_size__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Number of bin frequency points of the Fast Fourier Transform'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' -1 E-Spectral Power Density Electric_Spectral_Power_Density__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Electric Spectral Power Density in Natural Mode'. Master CDF VAR_NOTES: 'Fill values can be present (1) in the first/last values when only a part of the on-board spectrum values is sent to ground and/or (2) inside the spectrum when a specific mode is used, sending only one value (the highest signal) for each pair of consecutive frequency bins'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' V^2 m^-2 Hz^-1 -1.0 512 Overflow Code Value Overflow_Code__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Coded overflow information'. Master CDF VAR_NOTES: 'Value is between 0 (clean) and 1 (saturation)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' -1.0 Average Number Average_Number__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Number of averaged spectra'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' -1 Gain Change Number Gain_Change_Number__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Number of gain changes during the acquisition'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' -1 Mantissa Mantissa__C4_CP_WHI_NATURAL Master CDF CATDESC: 'First part of the compressed value which is a fixed point integer defined in the compression algorithm'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' 99 Exponent Exponent__C4_CP_WHI_NATURAL Master CDF CATDESC: 'Second part of the compressed value'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is time_tags__C4_CP_WHI_NATURAL.' 99