<_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/c1_waveform_wbd_00000000_v01.json (from all.xml) spase://NASA/NumericalData/Cluster-Rumba/WBD/PT0.0000046S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Cluster Wideband Data Plasma Wave Receiver/High Time Resolution Waveform Data <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description c1_waveform_wbd <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source High time resolution calibrated waveform data sampled in one of 3 frequency bands in the range 0-577 kHz along one axis using either an electric field antenna or a magnetic search coil sensor. The dataset also includes instrument mode, data quality and the angles required to orient the measurement with respect to the magnetic field and to the GSE coordinate system....CALIBRATION:...The procedure used in computing the calibrated Electric Field and Magnetic Field values found in this file can be obtained from the document 'cluster_wbd_calibration.pdf'. Because the calibration was applied in the time domain using a simple equation the raw counts actually measured by the WBD instrument can be obtained by using these equations and solving for 'Raw Counts', keeping in mind that this number is an Integer ranging from 0 to 255. Since DC offset is a real number, the resultant when solving for raw counts will need to be converted to the nearest whole number....CONVERSION TO FREQUENCY DOMAIN:...In order to convert the WBD data to the frequency domain via an FFT, the following steps need to be carried out: 1) If Electric Field, first divide calibrated data by 1000 to get V m^-1; 2) Apply window of preference, if any (such as Hanning, etc.); 3) Divide data values by sqrt(2) to get back to the rms domain; 4) perform FFT (see Bandwidth variable notes for non-continuous modes); 5) divide by the noise bandwidth, which is equal to the sampling frequency divided by the FFT size (see table below for appropriate sampling frequency); 6) multiply by the appropriate constant for the window used, if any....Bandwidth Sample Rate--------- ------------9.5 kHz 27.443 kHz 19 kHz 54.886 kHz 77 kHz 219.544 kHz ...COORDINATE SYSTEM USED:...One axis measurements made in the Antenna Coordinate System, i.e., if electric field measurement, it will either be Ey or Ez, both of which are in the spin plane of the spacecraft, and if magnetic field measurement, it will either be Bx, along the spin axis, or By, in spin plane.... <_Description>Source: Master/CDFglobalAttributes/TEXT Users of the Cluster WBD data are encouraged to acknowledge NASA Goddard Space Flight Center and The University of Iowa as the source of the data in any publication. <_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://space.physics.uiowa.edu/plasma-wave/cluster/ Cluster Wideband Plasma Wave Investigation Overview and high time resolution spectrograms, documentation, and data coverage files <_Note>URL also in all.xml. Using master. http://www.cosmos.esa.int/web/csa Cluster Science Archive High time resolution spectrograms, documentation, and data coverage files <_Note>URL also in all.xml. Using master. Cluster WBD Instrument Page http://www-pw.physics.uiowa.edu/cluster/ Cluster WBD Instrument page maintained by the University of Iowa with links to instrument descriptions and team members, publications, lists of coordinated observing times, science data availability catalogs, data, data interpretation and caveat descriptions as well as data analysis tools. en <_Note>Source: InformationURL.json Cluster Science Archive Documentation Page https://www.cosmos.esa.int/web/csa/documentation Cluster WBD documentation with links to lists of coordinated observing times, science data availability catalogs, WBD User Guide, WBD Calibration Report, WBD Interface Control Document, and data interpretation and caveat descriptions. en <_Note>Source: InformationURL.json CLUSTER WBD Cluster WBD data are open to everyone. However, users of these data are encouraged to contact the PI Institute should questions arise. <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use https://doi.org/10.48322/7jw6-ks09 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2000-09-21T02:14:13Z 2024-09-28T23:01:04Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT0.000036439S <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/cluster/c1/wbd/2001/01/c1_waveform_wbd_200101041530_v01.cdf. The most common cadence, 36439104 [ps] = PT0.000036439S, occurred for 58.3486% of the 6207082 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/Instrument/Cluster-Rumba/WBD spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/cluster/c1/wbd In CDF via HTTP from CDAWeb c1_waveform_wbd_%Y%m%d%H%M_%Q.cdf %Y/%m C1_WAVEFORM_WBD CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/cluster/c1/wbd In CDF via HTTP from CDAWeb c1_waveform_wbd_%Y%m%d%H%M_%Q.cdf %Y/%m C1_WAVEFORM_WBD CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa 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. C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=C1_WAVEFORM_WBD C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/C1_WAVEFORM_WBD/clientLibraryExample/ C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=C1_WAVEFORM_WBD C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=C1_WAVEFORM_WBD C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=C1_WAVEFORM_WBD&return=script C1_WAVEFORM_WBD 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: 2006 - Current: J. S. Pickett; 1988 - 2006: D. A. Gurnett at The University of Iowa HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=C1_WAVEFORM_WBD&format=gallery C1_WAVEFORM_WBD Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Cluster spacecraft 1 (from all.xml/observatory/description/@short) Wide Band Data Plasma Wave Receiver (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) C1 (from Master/CDFglobalAttributes/Source_name) Cluster spacecraft 1 (from Master/CDFglobalAttributes/Source_name) waveform (from Master/CDFglobalAttributes/Data_type) WBD (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 Waves.Passive ElectricField MagneticField UT Time Epoch CATDESC: 'UT Time, time of WBD data point'. 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.' picoseconds Scalar Temporal Frequency Bandwidth Bandwidth Master CDF CATDESC: 'Frequency Bandwidth: 9.5 kHz, 19 kHz, 77 kHz'. Master CDF VAR_NOTES: 'WARNING: 19 and 77 kHz Bandwidth modes with 8-bit resolution, and 77 kHz Bandwidth mode with 4-bit resolution (see Resolution variable) are not continuous data modes. Always check for periodic time jumps for these modes.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' kHz -1e+31 Frequency Shift Translation Master CDF CATDESC: 'Base freq. of freq. bandwidth (0.0, 125.454, 250.908, and 501.816 kHz)'. Master CDF VAR_NOTES: 'Also known as Conversion Frequency.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' kHz -1e+31 Digital Resolution Resolution Master CDF CATDESC: 'Number of bits used when digitizing waveform (8-bit, 4-bit, or 1-bit)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' bits -128 Antenna ANTENNA Master CDF CATDESC: 'Antenna (0=Ez, 1=Bx, 2=By, 3=Ey)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -128 Gain Gain Master CDF CATDESC: 'Gain state of WBD instrument'. Master CDF VAR_NOTES: 'Steps of 5 dB from 0 to 75.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' dB -128 Antenna-B Field Total Angle Ant_B_Field_Angle Master CDF CATDESC: 'Total angle between antenna used for WBD measurement and measured B field direction'. Master CDF VAR_NOTES: 'Antenna refers to the antenna in use, either E or B. See ANTENNA variable. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' degrees -1e+31 Antenna Xgse Angle Ant_Xgse_Angle Master CDF CATDESC: 'Total angle between the Xgse axis and the antenna direction'. Master CDF VAR_NOTES: 'Total angle between the Xgse axis and the antenna direction. Antenna refers to the antenna in use, either E or B. See ANTENNA variable.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' degrees -1e+31 Antenna YZgse-Plane Angle Ant_YZgse_Plane_Angle Master CDF CATDESC: 'Total angle between Ygse axis and the projection of the antenna direction in the Ygse-Zgse plane'. Master CDF VAR_NOTES: 'Total angle between Ygse axis and the projection of the antenna direction in the Ygse-Zgse plane, measured counter-clockwise from +Ygse (angle=0 deg) to +Zgse (angle=90 deg), -Ygse (angle=180 deg) and -Zgse (angle=270 deg). Antenna refers to the antenna in use, either E or B. See ANTENNA variable.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' degrees -1e+31 DC Offset DC_Offset Master CDF CATDESC: 'DC Offset used when converting from raw digital values to calibrated data'. Master CDF VAR_NOTES: 'DC Offset values may be used to reverse calibrate the data to the original raw counts and to determine the boundaries of the original transport packets. A description of the procedure may be found in the 'cluster_wbd_calibration.pdf' document (see Global attributes section of this file). In addition, sample code for reverse calibration may be found in the above mentioned document.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -1e+31 WBD AC Electric Field WBD_Elec Master CDF CATDESC: 'Calibrated AC WBD Electric Field'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' mV m^-1 -1e+31 WBD AC Magnetic Field WBD_Mag Master CDF CATDESC: 'Calibrated AC WBD Magnetic Field'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 Data Quality DATA_QUALITY Master CDF CATDESC: 'Data Quality: 0 = OK, 1 = clipped or questionable, 2 = bad data point.'. Master CDF VAR_NOTES: 'Clipped data: Measurement was equal to raw data value maximum (255) or minimum (0). This does not necessarily mean the receiver was in saturation, which would be accompanied by non-linear effects. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -128