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Data Access
FTP access to CDFs at SPDF
HTTP access to CDFs at SPDF
CDAWeb
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
ISEE 1 Solar Wind Analyzer 24-s Plasma Parameters
var authors='Gosling, John, T.';
document.write(authors);
(2023).
ISEE 1 Solar Wind Analyzer 24-s Plasma Parameters.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/wvvd-c308. Accessed on document.write(currentDateStr);.
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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/NumericalData/ISEE1/FPE/PT24S
Description
This data set contains 24s (fast data rate) or 48s (slow rate) solar wind ion plasma parameters obtained during 1977-1983 solar wind seasons (~July - ~January) when the spacecraft's local time of apogee was on the Earth's dayside. Plasma parameters include ion density, flow speed, flow longitude and latitude angles, perpendicular (minimum) and parallel (maximum) temperatures, and alpha-to-proton density ratio. Data are available through the CDAWeb interface and, as daily files via ftp, in ASCII from nssdcftp and in CDF from CDAWeb's ftp area. The data are from LANL's Cross-Fan Solar Wind Ion Experiment, a companion to LANL's Fast Plasma Analyzer (FPE).
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/ISEE1/FPE/PT24S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
ISEE 1 Solar Wind Analyzer 24-s Plasma Parameters
DOI
https://doi.org/10.48322/wvvd-c308
ReleaseDate
2026-06-26 13:18:05Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789Z
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
RevisionEvent
ReleaseDate
2025-09-09 12:34:56.789Z
Note
Revised ObservedRegions. JMW
RevisionEvent
ReleaseDate
2025-10-02 15:12:01Z
Note
Updated PublishedBy name to match ROR Registry. 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 13:29:37Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:18:05Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
This data set contains 24s (fast data rate) or 48s (slow rate) solar wind ion plasma parameters obtained during 1977-1983 solar wind seasons (~July - ~January) when the spacecraft's local time of apogee was on the Earth's dayside. Plasma parameters include ion density, flow speed, flow longitude and latitude angles, perpendicular (minimum) and parallel (maximum) temperatures, and alpha-to-proton density ratio. Data are available through the CDAWeb interface and, as daily files via ftp, in ASCII from nssdcftp and in CDF from CDAWeb's ftp area. The data are from LANL's Cross-Fan Solar Wind Ion Experiment, a companion to LANL's Fast Plasma Analyzer (FPE).
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling
PublicationInfo
Authors
Gosling, John, T.
PublicationDate
2023-01-01 00:00:00Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/John.T.Gosling
2.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Readme file at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/aareadme.txt
PriorIDs
spase://VMO/NumericalData/ISEE1/FPE/PT24S
spase://VSPO/NumericalData/ISEE1/FPE/PT24S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTP access to CDFs at SPDF
URL
ftps://spdf.gsfc.nasa.gov/pub/data/isee/isee1/isee1_cdaweb/24or48s_fpe/
Description
For ftp retrieval of daily CDF files
AccessURL
Name
HTTP access to CDFs at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/isee1_cdaweb/24or48s_fpe/
Description
In CDF via HTTP from SPDF
Format
CDF
DataExtent
Quantity
100
Units
KB
Per
P1D
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ISEE1_H2_FPE&index=sp_phys
ProductKey
ISEE1_H2_FPE
Description
For CDAWeb subset, plot and list capabilities
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/xfan_ascii/
Description
For ftp retrieval of daily ASCII files
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/isee/isee1/plasma_lanl/xfan_ascii/
Description
In CDF via HTTP from SPDF
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/isee/isee1/isee1_cdaweb/24or48s_fpe/$Y
AccessFilenameTemplate
isee1_h2_fpe_$Y$m$d_$v.cdf
DataExtent
Quantity
100
Units
KB
Per
P1D
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/ISEE1_H2_FPE/clientLibraryExample/
Style
WebService
ProductKey
ISEE1_H2_FPE
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
ISEE1_H2_FPE
Description
Web Service to this product using the HAPI interface.
Format
CSV
Acknowledgement
Please acknowledge the FPE PI, Dr. John Gosling and the Space Physics Data Facility at NASA/GSFC
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/ISEE1/FPE
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1977-10-30 00:00:00Z
StopDate
1984-01-30 00:00:00Z
Cadence
PT24S
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
Parameter #1
Name
Plasma Ion Density
ParameterKey
DEN
Cadence
PT24S
Units
1/cc
Particle
ParticleType
Ion
ParticleQuantity
NumberDensity
Parameter #2
Name
Plasma Flow Speed
ParameterKey
Speed
Cadence
PT24S
Units
km/s
Particle
ParticleType
Ion
ParticleQuantity
FlowSpeed
Parameter #3
Name
Plasma Flow Azimuth
ParameterKey
Azimuth
Description
Zero degrees is flow from the sun, aberration- corrected. Positive for flow towards dawn
Cadence
PT24S
Units
deg
Particle
ParticleType
Ion
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
FlowVelocity
Parameter #4
Name
Plasma Flow Elevation
ParameterKey
Latitude
Description
Zero degrees for flow in ecliptic plane. Positive for flow towards south
Cadence
PT24S
Units
deg
Particle
ParticleType
Ion
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
FlowVelocity
Parameter #5
Name
Temperature Minimum
ParameterKey
Tmin
Description
Temperature minimum, typically T-perp.
Cadence
PT24S
Units
deg K
Particle
ParticleType
Ion
Qualifier
Minimum
ParticleQuantity
Temperature
Parameter #6
Name
Temperature Maximum
ParameterKey
Tmax
Description
Temperature minimum, typically T-parallel.
Cadence
PT24S
Units
deg K
Particle
ParticleType
Ion
Qualifier
Maximum
ParticleQuantity
Temperature
Parameter #7
Name
Alpha to proton density ratio
ParameterKey
Alpha_p
Description
Alpha particle to proton density ratio, often not determinable
Cadence
PT24S
Particle
ParticleType
AlphaParticle
Qualifier
Ratio
ParticleQuantity
NumberDensity