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Wind 3DP Electron Plasma Moments

ResourceID
spase://NASA/NumericalData/Wind/3DP/EM/PT3S

Description

Electron Plasma moments (computed on-board) (NOT CORRECTED FOR S/C POTENTIAL) @ 3 second (spin) resolution (version 3), EESA LOW, Wind 3DP - R. Lin (UC Berkeley)

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Details

Version:2.2.3

NumericalData

ResourceID
spase://NASA/NumericalData/Wind/3DP/EM/PT3S
ResourceHeader
ResourceName
Wind 3DP Electron Plasma Moments
ReleaseDate
2020-07-07 21:16:04Z
Description

Electron Plasma moments (computed on-board) (NOT CORRECTED FOR S/C POTENTIAL) @ 3 second (spin) resolution (version 3), 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/EM/PT3S
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_em/
Description

In CDF via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/wind/3dp/3dp_em/
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_EM_3DP&index=sp_phys
ProductKey
WI_EM_3DP
Format
Text
InstrumentIDs
spase://SMWG/Instrument/Wind/3DP
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1994-11-15 12:53:43.000Z
RelativeStopDate
-P30D
Cadence
PT3S
ObservedRegion
Heliosphere.NearEarth
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 Density
ParameterKey
E_DENS
Description

Electron number density.

Caveats
Per Lynn Wilson Jan2015: These results cannot take the spacecraft potential into account. Wind does not measure the spacecraft potential actively, so it cannot perform this correction onboard and the results have many uncertainties.
Units
1/cm^3
UnitsConversion
1e6->m^3
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
NumberDensity
EnergyRange
Low
3
High
30000
Units
eV
Parameter #4
Name
Electron Velocity
ParameterKey
E_VELS
Description

Electron velocity vector GSE cartesian

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
UNCOR_V_xGSE
Index
1
ValidMin
-4000
ValidMax
4000
Element
Name
UNCOR_V_yGSE
Index
2
ValidMin
-4000
ValidMax
4000
Element
Name
UNCOR_V_zGSE
Index
3
ValidMin
-4000
ValidMax
4000
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
Velocity
EnergyRange
Low
3
High
30000
Units
eV
Parameter #5
Name
Residual Electron Velocity Variance
ParameterKey
E_TENS
Description

Residual Variance in Electron Velocity (6 components in instrument coords)

Caveats
Per Lynn Wilson Jan2015: This is in one of two units. It is calculated as the pressure tensor divided by the number density. In the decommutation source code, they say the units are (km/s)^2. In some of the other moment analysis software, the pressure is in units of [eV cm^(-3)].
Units
(km/s)^2
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
Structure
Size
6
Particle
ParticleType
Electron
Qualifier
Moment
Qualifier
Tensor
Qualifier
Variance
ParticleQuantity
Velocity
EnergyRange
Low
3
High
30000
Units
eV
Parameter #6
Name
Electron Temperature
ParameterKey
E_TEMP
Description

Electron temperature

Units
eV
UnitsConversion
1.160445e4>K
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
Temperature
EnergyRange
Low
3
High
30000
Units
eV
Parameter #7
Name
Electron Heat Flux
ParameterKey
E_Q
Description

Electron Heat Flux (Q)

Caveats
Per Lynn Wilson Jan2015: This is the vector form of the electron heat flux. It should have units of either [(km/s)^3 cm^(-3)] or [eV km/s cm^(-3)] . I am guessing the former due to the .VV units used above, since this is usually given the structure tag .NVVV.
Units
(km/s)^3/cm^3
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
UNCOR_Q_xGSE
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
Element
Name
UNCOR_Q_yGSE
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
Element
Name
UNCOR_Q_zGSE
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
Particle
ParticleType
Electron
Qualifier
Moment
ParticleQuantity
HeatFlux
EnergyRange
Low
3
High
30000
Units
eV
Parameter #8
Name
Gap flag
ParameterKey
GAP
Description

Flag indicating whether data point is preceded by a data gap (0 = no gap, 1 = gap)

Support
SupportQuantity
Other
Parameter #9
Name
Validity flag
ParameterKey
VALID
Description

Flag indicating whether data point is considered valid (0=bad, 1=good)

Support
SupportQuantity
Other