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Data Access
IGPP UCLA IMP-8 Plasma Data JMW Processed Solar Wind Archive
IMP-8 Linearly Interpolated 60 s Resolution PLS data in GSE Coordinates
var authors='Weygand, James M.; & McPherron, Robert L.';
document.write(authors);
(2006).
IMP-8 Linearly Interpolated 60 s Resolution PLS data in GSE Coordinates.
[Data set].
University of California, Los Angeles.
https://doi.org/10.21978/p8vw41. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S
Description
IMP-8 linearly interpolated to have the measurements on the minute at 60 s resolution PLS data in GSE coordinates. This data set consists of processed solar wind data that has been linearly interpolated to 1 min resolution at the position of the spacecraft using the interp1.m function in MATLAB. This data set was originally constructed by Dr. J.M. Weygand for Prof. R.L. McPherron, who was the principle investigator of two National Science Foundation studies: GEM Grant ATM 02-1798 and a Space Weather Grant ATM 02-08501. These data were primarily used in superposed epoch studies and cross correlation studies on solar wind.
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
NumericalData
ResourceID
spase://NASA/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
IMP-8 Linearly Interpolated 60 s Resolution PLS data in GSE Coordinates
AlternateName
1973-078A-02 data
AlternateName
IMP-8 Plasma Faraday Cup data
DOI
https://doi.org/10.21978/p8vw41
ReleaseDate
2026-06-26 13:31:43Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-05-31 12:34:56.789Z
Note
Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB
RevisionEvent
ReleaseDate
2025-08-05 13:12:57Z
Note
Added ObservedRegion(s). 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 value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:32:45Z
Note
Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:31:43Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
IMP-8 linearly interpolated to have the measurements on the minute at 60 s resolution PLS data in GSE coordinates. This data set consists of processed solar wind data that has been linearly interpolated to 1 min resolution at the position of the spacecraft using the interp1.m function in MATLAB. This data set was originally constructed by Dr. J.M. Weygand for Prof. R.L. McPherron, who was the principle investigator of two National Science Foundation studies: GEM Grant ATM 02-1798 and a Space Weather Grant ATM 02-08501. These data were primarily used in superposed epoch studies and cross correlation studies on solar wind.
Acknowledgement
NASA, Alan J. Lazarus, James M. Weygand
PublicationInfo
Authors
Weygand, James M.; & McPherron, Robert L.
PublicationDate
2006-01-01 00:00:00Z
PublishedBy
University of California, Los Angeles
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Alan.J.Lazarus
2.
MetadataContact
spase://SMWG/Person/James.M.Weygand
InformationURL
Name
IMP-8 solar wind propagation information
URL
http://www.igpp.ucla.edu/jweygand/htmls/Propagated_SW.html
Description
Solar wind archive at UCLA. This archive provides a list of available data resources and available time ranges.
PriorIDs
spase://VMO/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S
spase://VSPO/NumericalData/Weygand/IMP8/PLS/Processed/GSE/PT60S
AccessInformation
RepositoryID
spase://SMWG/Repository/UCLA/VMO
Availability
Online
AccessRights
Open
AccessURL
Name
IGPP UCLA IMP-8 Plasma Data JMW Processed Solar Wind Archive
URL
http://vmo.igpp.ucla.edu/data1/Weygand/ProcessedSolarWindGSE/IMP8/plasma/
Format
Text
Encoding
ASCII
Acknowledgement
NASA, Alan J. Lazarus, James M. Weygand
ProcessingLevel
Calibrated
ProviderResourceName
IMP-8 Solar Plasma Faraday Cup Investigation
ProviderProcessingLevel
Level-2
InstrumentIDs
spase://SMWG/Instrument/IMP8/PLS
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1973-11-01 00:00:00.000Z
StopDate
2002-07-31 23:59:00.000Z
Note
Time format in data files is: Day Month Year Hour Minute Second (DD MM YYYY HH MM SS.SSS)
Cadence
PT60S
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Heliosphere.NearEarth
Caveats
Flags=1.000e+34
Keywords
1 min
solar wind
magnetotail
bow shock
magnetopause
IMP-8
plasma data
Parameter #1
Name
Universal Time
ParameterKey
Time
Description
Interpolated universal time columns from left to right are: day month year hour minute sec in the format of dd mm yyyy hh mm ss.
Cadence
PT60S
Structure
Size
6
Description
Universal Time expressed using a 6-column day, month, year, hour, minute, second representation
Element
Name
Day
Index
1
ParameterKey
Day
Element
Name
Month
Index
2
ParameterKey
Month
Element
Name
Year
Index
3
ParameterKey
Year
Element
Name
Hour
Index
4
ParameterKey
Hour
Element
Name
Minute
Index
5
ParameterKey
Minute
Element
Name
Second
Index
6
ParameterKey
Second
Support
SupportQuantity
Temporal
Parameter #2
Name
IMP-8 PLS Density Interpolated to 1 min Resolution in GSE Coordinates
ParameterKey
Density
Description
Density for IMP-8 PLS in units of number per cubic centimeter in GSE coordinates.
Cadence
PT60S
Units
#/cm^-3
Particle
ParticleType
Ion
ParticleQuantity
NumberDensity
Parameter #3
Name
IMP-8 PLS Thermal Speed Interpolated to 1 min Resolution in GSE Coordinates.
ParameterKey
Thermal Speed
Description
IMP-8 PLS thermal speed in units of km/s in GSE coordinates.
Caveats
Be sure you understand the instrument
Cadence
PT60S
Units
KM/S
Particle
ParticleType
Ion
ParticleQuantity
ThermalSpeed
Parameter #4
Name
IMP-8 Velocity Vector Interpolated to 1 min Resolution n GSE Coordinates
ParameterKey
Velocity Vectors
Description
Flow vector for IMP-8 PLS in GSE coordinates in units of km/s.
Caveats
Be sure you understand the instrument
Cadence
PT60S
Units
KM/S
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
VX-GSE
Qualifier
Component.I
Index
1
ParameterKey
nvxgse
Element
Name
VY-GSE
Qualifier
Component.J
Index
2
ParameterKey
nvygse
Element
Name
VZ-GSE
Qualifier
Component.K
Index
3
ParameterKey
nvzgse
Particle
ParticleType
Ion
ParticleQuantity
Velocity
Parameter #5
Name
IMP-8 Spacecraft Position Vector Interpolated to 1 min Resolution in GSE Coordinates
ParameterKey
Position Vectors
Description
Location of the spacecraft in GSE coordinates in units of Re
Cadence
PT60S
Units
Re
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
X-GSE
Qualifier
Component.I
Index
1
ParameterKey
nxgse
Element
Name
Y-GSE
Qualifier
Component.J
Index
2
ParameterKey
nygse
Element
Name
Z-GSE
Qualifier
Component.K
Index
3
ParameterKey
nzgse
Support
SupportQuantity
Positional