An official website of the United States government
Here's how you know v
Official websites use .gov
A .gov websites belongs to an official government organization in the United States
Secure .gov website use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Data Access
Cluster WBD Spectrograms (30-s intervals)
Cluster WBD High Time Resolution Dynamic Spectrogram Plots
Cluster-Rumba Wideband (WBD) High Time Resolution Dynamic Spectrogram Plot
var authors='Pickett, Jolene S.; Gurnett, Donald A.';
document.write(authors);
(2025).
Cluster-Rumba Wideband (WBD) High Time Resolution Dynamic Spectrogram Plot.
[Data set].
European Space Astronomy Centre; University of Iowa.
https://doi.org/10.48322/fex4-k582. Accessed on document.write(currentDateStr);.
Note: Proper references, including
Copy BibTeX Citation
or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/DisplayData/Cluster-Rumba/WBD/DS/PT30S
Description
This dataset contains 30 s duration survey spectrogram plots from the WBD instrument on the Cluster spacecraft. The spectrograms are created by 1024 point FFTs and plotted with frequency on the vertical axis, increasing time on the horizontal, and color indicating power spectral density, in relative dB. The AC electric field data are obtained by using one of the two 88m spin plane electric field antennas of the EFW instrument as a sensor. The AC magnetic field data are obtained by using one of the two search coil magnetometers (one in the spin plane, the other along the spin axis) of the STAFF instrument as a sensor. The WBD data are obtained in one of three filter bandwidth modes: (1) 9.5 kHz, (2) 19 kHz, or (3) 77 kHz. The minimum frequency of each of these three frequency bands can be shifted up (converted) from the default 0 kHz base frequency by 125.454, 250.908 or 501.816 kHz. The time resolution of the data shown in the plots is determined from the WBD instrument mode. The highest time resolution data are sampled at 4.6 microseconds in the time domain, 4.7 milliseconds in the frequency domain (generally the 77 kHz bandwidth mode). The lowest time resolution data are sampled at 36.5 microseconds in the time domain, 37.3 milliseconds in the frequency domain (generally the 9.5 kHz bandwidth mode). Above the spectrogram plot are a line plot panel, followed by four status lines. The line plot panel at the top provides the gain state (0 to 75 dB, in 5 dB steps) of the instrument. The four status lines provide the following information according to the color code in the upper right corner: Data mode - whether from DSN mode (real time telemetry), or from BM2 mode (recorded onboard in Burst Mode 2) as digitally filtered or duty cycled. Antenna - the electric field (Ey or Ez) or the magnetic field (Bx or By) antenna used. Resolution - the data digitization level, which can be 1 bit, 4 bit or 8 bit. Translation - the translation from base frequency of 0 kHz. In the lower right-hand corner are the ephemeris values applicable to the start time of the plot. At the middle right-hand side are given the date and start time of the plot as well as the spacecraft number. The University of Iowa repository maintains two types of high time resolution spectrogram plots in GIF format: a ten minute (PT10M Display Cadence) and a 30 second time span (PT30S Display Cadence). Both types of files provide information on WBD gain and operational mode, the spectral data from one spacecraft, the start date and time and ephemeris data. Overview spectrograms are also available. The availability of these files depends on times of DSN and Pansak Ves ground station telemetry downlinks. A list of the status of the WBD instrument on each spacecraft, the telemetry time spans, operating modes and other details are available under Science Data Availability on the University of Iowa Cluster WBD web site at http://www-pw.physics.uiowa.edu/cluster/ and through the documentation section of the Cluster Science Archive (https://www.cosmos.esa.int/web/csa/documentation). Details on Cluster WBD Interpretation Issues can be found at http://www-pw.physics.uiowa.edu/cluster/interpretation_issues/interpretation.html For further details on the Cluster WBD data products see Pickett, J.S., et al., "Cluster Wideband Data Products in the Cluster Active Archive" in The Cluster Active Archive, 2010, Springer-Verlag, pp 169-183.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
View XML |
Edit
Details
Version:2.7.1
DisplayData
ResourceID
spase://NASA/DisplayData/Cluster-Rumba/WBD/DS/PT30S
NamingAuthority
NASA
ResourceType
DisplayData
ResourceHeader
ResourceName
Cluster-Rumba Wideband (WBD) High Time Resolution Dynamic Spectrogram Plot
AlternateName
Cluster Rumba WBD 30s Survey Spectrograms
AlternateName
Cluster 1 WBD High Time Resolution Dynamic Spectrogram Plot
AlternateName
Cluster 1 WBD 30s Survey Spectrograms
AlternateName
C1_CG_WBD_GIFPLOT
DOI
https://doi.org/10.48322/fex4-k582
ReleaseDate
2026-02-25 20:57:16Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-02-12 20:40:18Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:17:33Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:27:55Z
Note
Added MetadataRightsList. Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-02-25 20:57:16Z
Note
Added DOI. tlk
Description
This dataset contains 30 s duration survey spectrogram plots from the WBD instrument on the Cluster spacecraft. The spectrograms are created by 1024 point FFTs and plotted with frequency on the vertical axis, increasing time on the horizontal, and color indicating power spectral density, in relative dB. The AC electric field data are obtained by using one of the two 88m spin plane electric field antennas of the EFW instrument as a sensor. The AC magnetic field data are obtained by using one of the two search coil magnetometers (one in the spin plane, the other along the spin axis) of the STAFF instrument as a sensor. The WBD data are obtained in one of three filter bandwidth modes: (1) 9.5 kHz, (2) 19 kHz, or (3) 77 kHz. The minimum frequency of each of these three frequency bands can be shifted up (converted) from the default 0 kHz base frequency by 125.454, 250.908 or 501.816 kHz. The time resolution of the data shown in the plots is determined from the WBD instrument mode. The highest time resolution data are sampled at 4.6 microseconds in the time domain, 4.7 milliseconds in the frequency domain (generally the 77 kHz bandwidth mode). The lowest time resolution data are sampled at 36.5 microseconds in the time domain, 37.3 milliseconds in the frequency domain (generally the 9.5 kHz bandwidth mode). Above the spectrogram plot are a line plot panel, followed by four status lines. The line plot panel at the top provides the gain state (0 to 75 dB, in 5 dB steps) of the instrument. The four status lines provide the following information according to the color code in the upper right corner: Data mode - whether from DSN mode (real time telemetry), or from BM2 mode (recorded onboard in Burst Mode 2) as digitally filtered or duty cycled. Antenna - the electric field (Ey or Ez) or the magnetic field (Bx or By) antenna used. Resolution - the data digitization level, which can be 1 bit, 4 bit or 8 bit. Translation - the translation from base frequency of 0 kHz. In the lower right-hand corner are the ephemeris values applicable to the start time of the plot. At the middle right-hand side are given the date and start time of the plot as well as the spacecraft number. The University of Iowa repository maintains two types of high time resolution spectrogram plots in GIF format: a ten minute (PT10M Display Cadence) and a 30 second time span (PT30S Display Cadence). Both types of files provide information on WBD gain and operational mode, the spectral data from one spacecraft, the start date and time and ephemeris data. Overview spectrograms are also available. The availability of these files depends on times of DSN and Pansak Ves ground station telemetry downlinks. A list of the status of the WBD instrument on each spacecraft, the telemetry time spans, operating modes and other details are available under Science Data Availability on the University of Iowa Cluster WBD web site at http://www-pw.physics.uiowa.edu/cluster/ and through the documentation section of the Cluster Science Archive (https://www.cosmos.esa.int/web/csa/documentation). Details on Cluster WBD Interpretation Issues can be found at http://www-pw.physics.uiowa.edu/cluster/interpretation_issues/interpretation.html For further details on the Cluster WBD data products see Pickett, J.S., et al., "Cluster Wideband Data Products in the Cluster Active Archive" in The Cluster Active Archive, 2010, Springer-Verlag, pp 169-183.
Acknowledgement
Users please acknowledge Jolene S. Pickett, PI and Donald A. Gurnett, Co-I University of Iowa for making these dynamic spectrograms available.
PublicationInfo
Authors
Pickett, Jolene S.; Gurnett, Donald A.
PublicationDate
2025-11-14 16:17:33Z
PublishedBy
European Space Astronomy Centre; University of Iowa
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigatorTechnicalContact
spase://SMWG/Person/Jolene.S.Pickett
2.
CoInvestigatorFormerPI
spase://SMWG/Person/Donald.A.Gurnett
InformationURL
Name
Cluster WBD Instrument Page
URL
http://www-pw.physics.uiowa.edu/cluster/
Description
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 descriptions as well as data analysis tools.
Language
en
InformationURL
Name
Cluster Science Archive Documentation Page
URL
https://www.cosmos.esa.int/web/csa/documentation
Description
Cluster WBD documentation with links to lists of coordinated observing times, science data availability catalogs, and data interpretation descriptions.
Language
en
PriorIDs
spase://VWO/DisplayData/Cluster-Rumba/WBD/CLUSTER_WBD_GIF_DS
spase://VWO/DisplayData/Cluster-Rumba/WBD/DS.GIF.PT30S
spase://VSPO/DisplayData/Cluster-Rumba/WBD/DS/PT30S
spase://ESA/DisplayData/Cluster-Rumba/WBD/DS/PT30S
AccessInformation
RepositoryID
spase://SMWG/Repository/CSA
Availability
Online
AccessRights
Restricted
AccessURL
Name
Cluster WBD Spectrograms (30-s intervals)
URL
https://www.cosmos.esa.int/web/csa
Description
Repository of WBD dynamic spectrogram images and data at ESA's Cluster Science Archive.
Language
en
Format
GIF
Encoding
None
Acknowledgement
Users please acknowledge Jolene S. Pickett, PI and Donald A. Gurnett, Co-I University of Iowa and ESA Cluster Science Archive for making these dynamic spectrograms available.
AccessInformation
RepositoryID
spase://SMWG/Repository/UIowa/RadioPlasmaWaveGroup
Availability
Online
AccessRights
Open
AccessURL
Name
Cluster WBD High Time Resolution Dynamic Spectrogram Plots
URL
http://www-pw.physics.uiowa.edu/plasma-wave/istp/cluster/mop/
Description
Repository of WBD dynamic spectrogram images at University of Iowa, containing a directory listing to individual images.
Language
en
Format
GIF
Encoding
None
Acknowledgement
Users please acknowledge Jolene S. Pickett, PI and Donald A. Gurnett, Co-I University of Iowa for making these dynamic spectrograms available.
ProcessingLevel
Calibrated
ProviderProcessingLevel
Calibrated data in engineering units.
InstrumentIDs
spase://SMWG/Instrument/Cluster-Rumba/WBD
MeasurementType
Waves.Passive
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
2001-02-03 05:26:00Z
RelativeStopDate
-P7D
SpectralRange
RadioFrequency
DisplayCadence
PT30S
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.NearEarth
Caveats
See the data interpretation issues web site http://www-pw.physics.uiowa.edu/cluster/interpretation_issues/interpretation.html
Keywords
Dynamic Spectrogram
Spectrogram
AKR
Auroral hiss
Auroral Kilometric Radiation
Chorus
Continuum radiation
Equatorial Noise
Kilometric Continuum radiation
Plasmaspheric Hiss
Terrestrial Kilometric Radiation
TKR
Very Long Baseline Interferometry
VLBI
Langmuir Waves
Type III Solar Bursts
Electostatic Solitary Waves
ESW
Parameter #1
Name
Relative Intensity
Description
Both electric and magnetic field data are presented together in decibels
Units
dB
Wave
WaveType
PlasmaWaves
WaveQuantity
Intensity
FrequencyRange
SpectralRange
RadioFrequency
Low
0.7
High
577
Units
kHz