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Wind 3DP EESA-LOW Electron Moments

ResourceID
spase://NASA/NumericalData/Wind/3DP/EESA_LOW/Moments

Description

Electron Moments (ground-computed), EESA Low, Wind 3DP - R. Lin (UC Berkeley)

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Version:2.2.3

NumericalData

ResourceID
spase://NASA/NumericalData/Wind/3DP/EESA_LOW/Moments
ResourceHeader
ResourceName
Wind 3DP EESA-LOW Electron Moments
ReleaseDate
2020-07-07 21:16:04Z
Description

Electron Moments (ground-computed), EESA Low, Wind 3DP - R. Lin (UC Berkeley)

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_LOW/Moments
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_elm2/
Description

In CDF via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_elm2/
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_ELM2_3DP&index=sp_phys
ProductKey
WI_ELM2_3DP
Format
Text
InstrumentIDs
spase://SMWG/Instrument/Wind/3DP
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1994-11-15 12:54:33.000Z
RelativeStopDate
-P30D
ObservedRegion
Heliosphere.NearEarth
Caveats
Note Feb2015 Correct spacecraft potential is important to scientifically useful results .No documentation found on how this potential has been calculated.
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
Spacecraft Potential
ParameterKey
SC_POT
Description

Spacecraft potential estimated from electron ONLY measurements

Units
ev
ValidMin
0.0
ValidMax
1000000.0
Support
SupportQuantity
Other
Parameter #4
Name
Spacecraft Current Contribution
ParameterKey
SC_CURRENT
Description

Current contribution to the spacecraft from thermal electrons

Units
#/cm2-sec
Support
SupportQuantity
Other
Parameter #5
Name
Magnetic field vector in GSE coordinates
ParameterKey
MAGF
Description

magnetic field vector interpolated (linearly) to the time of the EESA Low distribution, in GSE cartesian components

Units
nT
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
Bx
Index
1
ValidMin
-1000
ValidMax
1000
Element
Name
By
Index
2
ValidMin
-1000
ValidMax
1000
Element
Name
Bz
Index
3
ValidMin
-1000
ValidMax
1000
Field
Qualifier
Moment
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #6
Name
Electron Density
ParameterKey
DENSITY
Description

Electron number density

Units
#/cm3
UnitsConversion
1e6->m^3
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
NumberDensity
EnergyRange
Low
3
High
30000
Units
eV
Parameter #7
Name
Electron Temperature
ParameterKey
AVGTEMP
Description

Average electron temperature

Units
eV
UnitsConversion
1.160445e4>K
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
Temperature
EnergyRange
Low
3
High
30000
Units
eV
Parameter #8
Name
Electron probable speed
ParameterKey
VTHERMAL
Description

lectron most probable speed

Units
km/sec
Particle
ParticleType
Electron
ParticleQuantity
ThermalSpeed
EnergyRange
Low
3
High
30000
Units
eV
Parameter #9
Name
Electron Velocity
ParameterKey
VELOCITY
Description

electron Flow Velocity, GSE cartesian

Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
electron_Vx
Index
1
ValidMin
-1000
ValidMax
1000
Element
Name
electron_Vy
Index
2
ValidMin
-1000
ValidMax
1000
Element
Name
electron_Vz
Index
3
ValidMin
-1000
ValidMax
1000
Particle
ParticleType
Electron
ParticleQuantity
FlowVelocity
Parameter #10
Name
Electron Flux
ParameterKey
FLUX
Description

electron total number flux - cartesian GSE

Units
#/(cm^2*ster*eV*s)
Structure
Size
3
Particle
ParticleType
Electron
ParticleQuantity
NumberFlux
Parameter #11
Name
Electron Pressure Tensor
ParameterKey
PTENS
Description

electron Pressure Tensor calculated in the GSE coordinate basis. The elements correspond to, in the following order: XX, YY, ZZ, XY, XZ, YZ

Particle
ParticleType
Electron
Qualifier
Tensor
ParticleQuantity
Pressure
Parameter #12
Name
Electron Momentum Flux Tensor
ParameterKey
MFTENS
Description

electron Momentum Flux Tensor calculated in the GSE coordinate basis. The elements correspond to, in the following order: XX, YY, ZZ, XY, XZ, YZ

Particle
ParticleType
Electron
Qualifier
Tensor
ParticleQuantity
NumberFlux
Parameter #13
Name
T3
ParameterKey
electron Temperature eigenvalues
Description

electron Temperature eigenvalues after diagonalization of tensor, calculated in the GSE coordinate basis. The elements correspond to: XX, YY, ZZ

Units
eV
Particle
ParticleType
Electron
ParticleQuantity
Temperature
Parameter #14
Name
Symmetry direction, electron pressure tensor
ParameterKey
SYMM
Description

ZZ-component of the eigenvectors associated with the eigen values from the diagonalized .T3 (i.e., the eigenvector associated with the Z eigen value from .T3 or .T3[2])

Particle
ParticleType
Electron
Qualifier
Tensor
ParticleQuantity
Pressure
Parameter #15
Name
electron symmetry direction, latitude
ParameterKey
SYMM_THETA
Description

Spherical coordinate latitude of SYMM

Units
Degrees
Particle
ParticleType
Electron
Qualifier
DirectionAngle.PolarAngle
ParticleQuantity
Pressure
Parameter #16
Name
electron symmetry direction, longitude
ParameterKey
SYMM_PHI
Description

Spherical coordinate longitude of SYMM

Units
Degrees
Particle
ParticleType
Electron
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
Pressure
Parameter #17
Name
Angle of electron symmetry direction to B
ParameterKey
SYMM_ANG
Description

angle between the ZZ-component of the eigenvectors associated with the eigen values from the diagonalized .T3 and the magnetic field vector (i.e., .MAGF vector)

Units
Degrees
Support
SupportQuantity
Other
Parameter #18
Name
Electron temperature tensor.
ParameterKey
MAGT3
Description

electron temperature tensor rotated into a field-aligned coordinate basis and then taking the diagonal elements only

Units
eV
Particle
ParticleType
Electron
Qualifier
Tensor
ParticleQuantity
Temperature
Parameter #19
Name
electron energy range
ParameterKey
ERANGE
Description

electron energy range used to compute the moments

Units
eV
Particle
ParticleType
Electron
ParticleQuantity
Energy
Parameter #20
Name
Electron mass
ParameterKey
MASS
Description

electron mass of species. Units are eV/c^2, where c = speed of light in units of km/s. This results is a value of ~5.68566 x 10^(-6) for electrons and ~0.0104389 for protons.

Units
eV/c^2
Particle
ParticleType
Electron
ParticleQuantity
Mass
Parameter #21
Name
Electron Validity flag
ParameterKey
VALID
Description

electron Validity flag indicating whether data point is considered valid (0=invalid, 1=valid)

Support
SupportQuantity
Other
Parameter #22
Name
Electron bulk velocity; magnitude
ParameterKey
VEL_MAG
Description

electron bulk flow speed

Units
km/s
Particle
ParticleType
Electron
Qualifier
Magnitude
ParticleQuantity
FlowVelocity
Parameter #23
Name
Electron bulk flow velocity; latitude
ParameterKey
VEL_TH
Description

electron bulk flow velocity; latitude/theta

Units
Degrees
Particle
ParticleType
Electron
Qualifier
DirectionAngle.PolarAngle
ParticleQuantity
FlowVelocity
Parameter #24
Name
Electron bulk flow velocity; longitude
ParameterKey
VEL_PHI
Description

electron bulk flow velocity; longitude/phi

Units
Degrees
Particle
ParticleType
Electron
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
FlowVelocity