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Data Access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
Wind 3DP EESA-HIGH Electron Pitch-Angle Distributions
var authors='Lin, Robert P.; Bale, Stuart D.; & Wilson III, Lynn B.';
document.write(authors);
(2021).
Wind 3DP EESA-HIGH Electron Pitch-Angle Distributions.
[Data set].
Space Physics Data Facility; University of California, Berkeley.
https://doi.org/10.48322/63fs-yr96. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/Wind/3DP/EESA_HIGH/PD/PT24S
Description
Wind 3DP electron pitch angle product providing electron fluxes in 8 directional bins relative to the local magnetic field direction at 15 different energy levels.
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/Wind/3DP/EESA_HIGH/PD/PT24S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Wind 3DP EESA-HIGH Electron Pitch-Angle Distributions
DOI
https://doi.org/10.48322/63fs-yr96
ReleaseDate
2025-12-04 13:32:48Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-05-31 12:34:56.789
Note
Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB
RevisionEvent
ReleaseDate
2025-09-30 14:25:25Z
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
2025-10-23 12:34:56.789
Note
Revised ObservedRegion. JMW
RevisionEvent
ReleaseDate
2025-12-04 13:32:48Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description
Wind 3DP electron pitch angle product providing electron fluxes in 8 directional bins relative to the local magnetic field direction at 15 different energy levels.
Acknowledgement
Principle Investigators Robert Lin and Stuart Bale, the Wind 3DP team, and the Space Physics Data Facility (SPDF)/NASA GSFC
PublicationInfo
Authors
Lin, Robert P.; Bale, Stuart D.; & Wilson III, Lynn B.
PublicationDate
2021-01-01 00:00:00
PublishedBy
Space Physics Data Facility; University of California, Berkeley
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Robert.P.Lin
2.
PrincipalInvestigator
spase://SMWG/Person/Stuart.D.Bale
3.
GeneralContact
spase://SMWG/Person/Robert.E.McGuire
InformationURL
Name
Caveats to the use of Wind 3DP data
URL
https://spdf.gsfc.nasa.gov/pub/data/wind/3dp/wind3dp_caveats.pdf
Description
Caveats for the correct use of Wind 3DP datasets
InformationURL
Name
Wind 3DP home page at UCB
URL
http://sprg.ssl.berkeley.edu/wind3dp/
Description
home page at UCB (with plotting and digital data)
PriorIDs
spase://VSPO/NumericalData/Wind/3DP/EESA_HIGH/PD/PT24S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
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
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_ehpd/
Description
In CDF via ftp from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_ehpd/
Description
In CDF via HTTP from SPDF
Format
CDF
Acknowledgement
Please acknowledge the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
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=WI_EHPD_3DP&index=sp_phys
ProductKey
WI_EHPD_3DP
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/wind/3dp/3dp_ehpd/$Y
AccessFilenameTemplate
wi_ehpd_3dp_$Y$m$d_$v.cdf
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/WI_EHPD_3DP/clientLibraryExample/
Style
WebService
ProductKey
WI_EHPD_3DP
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
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
WI_EHPD_3DP
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
spase://SMWG/Instrument/Wind/3DP
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1994-12-20 15:10:03.000Z
RelativeStopDate
-P30D
Cadence
PT24S
ObservedRegion
Heliosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Heliosphere.Inner
ObservedRegion
Earth.Magnetosheath
Caveats
With respect to time resolution: 24 sec timing changes and is not necessarily constant, depending on the mode that the instrument happens to be in. Not only does the period/interval between each point change, the duration over which the data were taken can change as well. There are several variables in the data files which are not populated in the publicly available data product. These variables include EDENS, TEMP, QP, QM, QT, REDF, and VSW.
Parameter #1
Name
Epoch
ParameterKey
Epoch
Description
Number of milliseconds since CDF_EPOCH: 0000-01-01T00:00:00.000.
Units
ms
UnitsConversion
1e-3>s
ValidMin
01-Jan-1956 00:00:00.000
ValidMax
01-Jan-2083 00:00:00.000
FillValue
-1.0E31
Support
SupportQuantity
Temporal
Parameter #2
Name
Unix Time
ParameterKey
TIME
Description
Time since 1970-01-01T00:00:00Z in seconds
Units
s
Support
SupportQuantity
Temporal
Parameter #3
Name
Electron Flux
ParameterKey
FLUX
Description
Electron number flux 100eV-30keV in 15 energy and 8 angle bins. The first dimension corresponds to 15 time dependent energy bands (parameter ENERGY,centered from ~100 eV to ~30keV). The 2nd dimension corresponds to 8 time dependent pitch angles (parameter PANGLE, ranging from ~15 deg to ~165 deg)relative to the magnetic field direction
Units
#/(cm^2*ster*eV*s)
Structure
Size
15 8
Particle
ParticleType
Electron
ParticleQuantity
NumberFlux
EnergyRange
Low
100
High
30000
Units
eV
AzimuthalAngleRange
Low
0
High
360
Units
degrees
PolarAngleRange
Low
0
High
180
Units
degrees
Parameter #4
Name
Electron Energy
ParameterKey
ENERGY
Description
Average electron energy
Units
eV
Structure
Size
15
Description
The 15 average electron energies for this pitch angle distribution
Particle
ParticleType
Electron
Qualifier
Average
ParticleQuantity
Energy
EnergyRange
Low
100
High
30000
Units
eV
Parameter #5
Name
Electron Pitch Angle
ParameterKey
PANGLE
Description
Average electron pitch angle with respect to the magnetic field vector
Units
degree
Structure
Size
8
Description
The 8 average pitch angles for this pitch angle distribution
Particle
ParticleType
Electron
Qualifier
DirectionAngle
ParticleQuantity
ArrivalDirection
Parameter #6
Name
SW Velocity vector
ParameterKey
VSW
Description
SW Velocity vector (from ions and ground-based processing)
Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
VSWion_x
Index
1
ValidMin
-3000
ValidMax
3000
Element
Name
VSWion_y
Index
2
ValidMin
-3000
ValidMax
3000
Element
Name
VSWion_z
Index
3
ValidMin
-3000
ValidMax
3000
Particle
ParticleType
Ion
Qualifier
Moment
ParticleQuantity
FlowVelocity
EnergyRange
Low
3.0
High
2000
Units
eV
Parameter #7
Name
Magnetic field vector in GSE coordinates
ParameterKey
MAGF
Description
Magnetic field vector in GSE coordinates
Units
nT
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
Bx
Index
1
ValidMin
-500
ValidMax
500
Element
Name
By
Index
2
ValidMin
-500
ValidMax
500
Element
Name
Bz
Index
3
ValidMin
-500
ValidMax
500
Field
Qualifier
Average
Qualifier
Vector
FieldQuantity
Magnetic