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Wind 3DP EESA-HIGH Electron Pitch-Angle Distributions

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.

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Details

Version:2.2.3

NumericalData

ResourceID
spase://NASA/NumericalData/Wind/3DP/EESA_HIGH/PD/PT24S
ResourceHeader
ResourceName
Wind 3DP EESA-HIGH Electron Pitch-Angle Distributions
ReleaseDate
2020-07-07 21:16:04Z
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
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Robert.P.Lin
2.PrincipalInvestigatorspase://SMWG/Person/Stuart.D.Bale
3.GeneralContactspase://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
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
AccessURL
Name
CDAWeb
URL
https://cdaweb.sci.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=WI_EHPD_3DP&index=sp_phys
ProductKey
WI_EHPD_3DP
Format
Text
InstrumentIDs
spase://SMWG/Instrument/Wind/3DP
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1994-12-20 15:10:03.000Z
RelativeStopDate
-P30D
Cadence
PT24S
ObservedRegion
Heliosphere.NearEarth
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