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ISEE 1 Plasma Wave Instrument Spectrum Analyzer Spectrogram Plots

ResourceID
spase://NASA/DisplayData/ISEE1/PWE/SA/PT12H

Description

This dataset contains dynamic spectrogram PNG plots of the ISEE-1/PWI Spectrum Analyzer data. Each plot spans 12 hours. The dataset consists of files from 0-12UT and 12-24UT. These data were obtained from the Ev long wire antenna in the spin plane and the Bz search coil along the spin axis. Each image consists of two panels. The title above the upper panel is "ISEE-1 PWI Spectrum Analyzer Ev Antenna and Bz Search Coil" Each panel is a plot of the power spectral density of received signal (color scale) as a function of operating frequency (in a logarithmic scale on the vertical axis) and time (horizontal axis). The upper panel is a plot of Electric Spectral Density (SD) the lower plot is Magnetic SD. Beneath the time labels on the horizontal axis of the spectrograms are ephemeris data: position of the spacecraft in radial distance (Earth radii), geomagnetic latitude, magnetic local time, and McIlwain L-shell. Overlaid on the upper plot are traces of the electron cyclotron frequencies. At the bottom of the image is the date, day number and time range. Located in the same directory are the daily ISEE-1 PWI Sweep Frequency Receiver (SFR) spectrograms.

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Details

Version:2.2.9

DisplayData

ResourceID
spase://NASA/DisplayData/ISEE1/PWE/SA/PT12H
ResourceHeader
ResourceName
ISEE 1 Plasma Wave Instrument Spectrum Analyzer Spectrogram Plots
AlternateName
ISEE-1 PWI SA Spectrogram Plots.
ReleaseDate
2020-07-07 19:48:34Z
Description

This dataset contains dynamic spectrogram PNG plots of the ISEE-1/PWI Spectrum Analyzer data. Each plot spans 12 hours. The dataset consists of files from 0-12UT and 12-24UT. These data were obtained from the Ev long wire antenna in the spin plane and the Bz search coil along the spin axis. Each image consists of two panels. The title above the upper panel is "ISEE-1 PWI Spectrum Analyzer Ev Antenna and Bz Search Coil" Each panel is a plot of the power spectral density of received signal (color scale) as a function of operating frequency (in a logarithmic scale on the vertical axis) and time (horizontal axis). The upper panel is a plot of Electric Spectral Density (SD) the lower plot is Magnetic SD. Beneath the time labels on the horizontal axis of the spectrograms are ephemeris data: position of the spacecraft in radial distance (Earth radii), geomagnetic latitude, magnetic local time, and McIlwain L-shell. Overlaid on the upper plot are traces of the electron cyclotron frequencies. At the bottom of the image is the date, day number and time range. Located in the same directory are the daily ISEE-1 PWI Sweep Frequency Receiver (SFR) spectrograms.

Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Donald.A.Gurnett
2.MetadataContactspase://SMWG/Person/Jolene.S.Pickett
3.MetadataContactspase://SMWG/Person/Larry.J.Granroth
4.MetadataContactspase://SMWG/Person/Chris.W.Piker
InformationURL
Name
The University of Iowa ISEE-1 PWI Page
URL
Description
Language
en
Association
AssociationID
AssociationType
DerivedFrom
PriorIDs
spase://VWO/DisplayData/ISEE1/PWE/SA.PT12H
spase://VSPO/DisplayData/ISEE1/PWE/SA/PT12H
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
HTTPS from SPDF
URL
Description

Access to a directory tree (ordered by year) of PNG format plots for ISEE-1 SFR (daily) and SA (12 hour) dynamic spectrograms.

Language
en
Format
PNG
Encoding
None
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
HTTPS from SPDF
URL
Description

Access to a directory tree (ordered by the year/month/day) of PNG format plots for ISEE-1 SFR (daily) and SA (12 hour) dynamic spectrograms.

Language
en
Format
PNG
Encoding
None
InstrumentIDs
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
1977-10-23 00:00:00Z
StopDate
1987-09-26 23:59:59Z
DisplayCadence
PT12H
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.Inner
Keywords
Dynamic Spectrogram
Spectrogram
AKR
Auroral hiss
Auroral Kilometric Radiation
Banded emissions
Broadband Electrostatic Noise (BEN)
Chorus
Continuum radiation
Electron Acoustic Waves
Electron Foreshock Waves
Electromagnetic Ion Cyclotron waves
EMIC
Electron Cyclotron Harmonics
Equatorial Noise
Ion Acoustic Waves
Ion Foreshock Waves
Kilometric Continuum radiation
Lion Roard
Myriametric radiation
Plasmaspheric Hiss
Solar radio burst
Terrestrial Kilometric Radiation
TKR
UHR
Upper hybrid resonance
Whistler mode
Whistlers
Parameter #1
Name
SA Electric Power Spectral Density
Units
V^2*m^-2*Hz^-1
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
5.62
High
311000
Units
Hz
Parameter #2
Name
SA Magnetic Power Spectral Density
Units
nT^2 Hz^-1
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
5.62
High
10000
Units
Hz