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Data Access
Earth 1 (1990)
Earth 2 (1992)
Galileo Plasma Wave Sensors (PWS) Earth Flyby Daily Dynamic Spectrograms Magnetic
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(2025).
Galileo Plasma Wave Sensors (PWS) Earth Flyby Daily Dynamic Spectrograms Magnetic.
[Data set].
University of Iowa.
https://doi.org/10.48322/qxgm-e650. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/DisplayData/Galileo/PWS/DS/Magnetic/P1D
Description
These PWS daily spectrograms cover the time range around the time of the Galileo spacecraft's two Earth flybys on its way to Jupiter. This dataset contains magnetic field spectrograms in units of magnetic field spectral density (nT^2/Hz) spanning 6 Hz to 75 kHz. An associated dataset contains electric field spectrograms in units of electric field spectral density (V^2/m^2/Hz) spanning 6 Hz to 5.6 MHz. The sources of this browse data set are the High Frequency Receiver, Sweep Frequency Receiver, and Spectrum Analyzer which make up the Low Rate Science portion of the PWS. The high frequency receiver data that appears in the uppermost panel of the spectrograms are only taken from the electric field antennas. During the time interval spanned by the first Earth flyby, Galileo approached Earth from the local early morning sector, made a close approach to Earth by passing through the magnetosphere, plasmasphere, ionosphere, and finally exited the Earth system in the local late morning. During the time interval spanned by the second Earth flyby, Galileo approached Earth from the local late evening sector, made a close approach to Earth by passing through the magnetosphere, plasmasphere, ionosphere, and finally exited the Earth system near local dawn. +-----------------------------------------------------+ Flyby 1 1990 November 8 1700 UT - dataset start 1990 December 8 - Earth closest approach 1990 December 18 1700 UT - dataset end +-----------------------------------------------------+ +-----------------------------------------------------+ Flyby 2 1992 November 6 2100 UT - dataset start 1992 December 8 - Earth closest approach 1992 December 17 0630 UT - dataset ends +-----------------------------------------------------+
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.
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Details
Version:2.7.1
DisplayData
ResourceID
spase://NASA/DisplayData/Galileo/PWS/DS/Magnetic/P1D
NamingAuthority
NASA
ResourceType
DisplayData
ResourceHeader
ResourceName
Galileo Plasma Wave Sensors (PWS) Earth Flyby Daily Dynamic Spectrograms Magnetic
DOI
https://doi.org/10.48322/qxgm-e650
ReleaseDate
2026-02-25 20:57:19Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 19:48:33Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:17:34Z
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 20:57:19Z
Note
Added DOI. tlk
Description
These PWS daily spectrograms cover the time range around the time of the Galileo spacecraft's two Earth flybys on its way to Jupiter. This dataset contains magnetic field spectrograms in units of magnetic field spectral density (nT^2/Hz) spanning 6 Hz to 75 kHz. An associated dataset contains electric field spectrograms in units of electric field spectral density (V^2/m^2/Hz) spanning 6 Hz to 5.6 MHz. The sources of this browse data set are the High Frequency Receiver, Sweep Frequency Receiver, and Spectrum Analyzer which make up the Low Rate Science portion of the PWS. The high frequency receiver data that appears in the uppermost panel of the spectrograms are only taken from the electric field antennas. During the time interval spanned by the first Earth flyby, Galileo approached Earth from the local early morning sector, made a close approach to Earth by passing through the magnetosphere, plasmasphere, ionosphere, and finally exited the Earth system in the local late morning. During the time interval spanned by the second Earth flyby, Galileo approached Earth from the local late evening sector, made a close approach to Earth by passing through the magnetosphere, plasmasphere, ionosphere, and finally exited the Earth system near local dawn. +-----------------------------------------------------+ Flyby 1 1990 November 8 1700 UT - dataset start 1990 December 8 - Earth closest approach 1990 December 18 1700 UT - dataset end +-----------------------------------------------------+ +-----------------------------------------------------+ Flyby 2 1992 November 6 2100 UT - dataset start 1992 December 8 - Earth closest approach 1992 December 17 0630 UT - dataset ends +-----------------------------------------------------+
Acknowledgement
When using this data please acknowledge the PI Donald A. Gurnett and Co-I William S. Kurth, NASA, The University of Iowa and the VWO.
PublicationInfo
Authors
Gurnett, Donald A.; Kurth, William S.
PublicationDate
2025-11-14 16:17:34Z
PublishedBy
University of Iowa
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Donald.A.Gurnett
2.
CoInvestigator
spase://SMWG/Person/William.S.Kurth
InformationURL
Name
Galileo Plasma Wave Investigation Page
URL
http://www-pw.physics.uiowa.edu/plasma-wave/galileo/home.html
Description
Galileo Plasma Wave Investigation page maintained by The University of Iowa with descriptions of the instrument, press releases, publications and links to PWS and PLS data and data viewers.
Language
en
PriorIDs
spase://VWO/DisplayData/Galileo/PWS/DS.Magnetic.P1D
spase://VSPO/DisplayData/Galileo/PWS/DS/Magnetic/P1D
AccessInformation
RepositoryID
spase://SMWG/Repository/UIowa/RadioPlasmaWaveGroup
Availability
Online
AccessRights
Open
AccessURL
Name
Earth 1 (1990)
URL
http://www-pw.physics.uiowa.edu/plasma-wave/galileo/lrs/e1/
Language
en
AccessURL
Name
Earth 2 (1992)
URL
http://www-pw.physics.uiowa.edu/plasma-wave/galileo/lrs/e2/
Language
en
Format
GIF
Encoding
None
Acknowledgement
When using these data please acknowledge the PI Donald A. Gurnett and Co-I William S. Kurth, NASA, The University of Iowa and the VWO.
InstrumentIDs
spase://SMWG/Instrument/Galileo/PWS
MeasurementType
Waves.Passive
MeasurementType
Spectrum
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1990-11-08 17:00:00Z
StopDate
1992-12-17 06:30:00Z
Note
There is a gap of approximately two years between one Earth flyby and the next. See time span tables in the Description above.
DisplayCadence
P1D
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.Inner
Keywords
Dynamic Spectrogram
Spectrogram
AKR
Auroral Kilometric Radiation
Chorus
Continuum radiation
Myriametric radiation
Solar radio burst
Terrestrial Kilometric Radiation
TKR
Type II Solar radio burst
Type III Solar radio burst
Parameter #1
Name
Magnetic Spectral Density
Units
nT^2/Hz
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
5.62
High
75000
Units
Hz