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THEMIS-E: On Board moments: ESA and SST Electron/Ion moments, density, flux, velocity, pressure and temperature.

ResourceID
spase://NASA/NumericalData/THEMIS/E/MOM/PT3S

Description

THEMIS-E On Board moments. On board data outputs include number density, particle flux, energy flux, and a six component symetric momentum flux tensor. Other moments are calculated from these partial moments on the ground adding total pressure, velocity, plasma temperature (measured as a three dimensional energy vector), and a six component symetric pressure tensor to the list of data products. Number density and total pressure are scalar outputs. Velocity is calculated in DSL, GSE, GSM, and MFA coordinates (coordinate descriptions are listed below in Table 1). Magnetic Field Aligned pressure tensor and temperature are calculated as well. All quantities are calculated for both ions and electrons from a combination of ESA and SST data. Moments data are taken at spin resolution in all ESA survey modes except burst. The spacecraft potential, as measure by the EFI, is used to correct for spacecraft charging by shifting the particle energies for calculation; this eliminates contamination from photo-electrons. Also, weighting factors are used to account for instrument specific energy and angle efficiency variations.

        Table 1: Coordinate Descriptions.

        Despun Sun - L-vector (DSL):   Z-axis points towards the spin axis, the Y-axis is obtained from the cross product of Z and the Spacecraft-Sun direction as viewed from the probe.  The X-axis sits in the Z-axis-Sun plane and completes a right handed system.

        Geocentric Solar Ecliptic (GSE):   Z-axis is normal to the solar ecliptic, the X-axis points from earth towards the Sun, and Y complets a right handed system.

        Geocentric solar Magnetosphereic (GSM):   X-axis points from Earth to the Sun, the Y-axis is orthogonal to the Earth's magnetic dipole and points towards the dusk side, and the X-Z plane contains the dipole axis.

        Magnetic Field Aligned (MFA):   Z-axis points along magnetic field lines, the Y-axis is the orthonormal cross product of the Z-axis and a vector pointing towards the Sun, and the X-axis completes the right handed system.

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NASA/NumericalData/THEMIS/E/MOM/PT3S
ResourceHeader
ResourceName
THEMIS-E: On Board moments: ESA and SST Electron/Ion moments, density, flux, velocity, pressure and temperature.
AlternateName
THEMIS-E MOM
ReleaseDate
2020-07-07 21:15:28Z
Description

THEMIS-E On Board moments. On board data outputs include number density, particle flux, energy flux, and a six component symetric momentum flux tensor. Other moments are calculated from these partial moments on the ground adding total pressure, velocity, plasma temperature (measured as a three dimensional energy vector), and a six component symetric pressure tensor to the list of data products. Number density and total pressure are scalar outputs. Velocity is calculated in DSL, GSE, GSM, and MFA coordinates (coordinate descriptions are listed below in Table 1). Magnetic Field Aligned pressure tensor and temperature are calculated as well. All quantities are calculated for both ions and electrons from a combination of ESA and SST data. Moments data are taken at spin resolution in all ESA survey modes except burst. The spacecraft potential, as measure by the EFI, is used to correct for spacecraft charging by shifting the particle energies for calculation; this eliminates contamination from photo-electrons. Also, weighting factors are used to account for instrument specific energy and angle efficiency variations.

        Table 1: Coordinate Descriptions.

        Despun Sun - L-vector (DSL):   Z-axis points towards the spin axis, the Y-axis is obtained from the cross product of Z and the Spacecraft-Sun direction as viewed from the probe.  The X-axis sits in the Z-axis-Sun plane and completes a right handed system.

        Geocentric Solar Ecliptic (GSE):   Z-axis is normal to the solar ecliptic, the X-axis points from earth towards the Sun, and Y complets a right handed system.

        Geocentric solar Magnetosphereic (GSM):   X-axis points from Earth to the Sun, the Y-axis is orthogonal to the Earth's magnetic dipole and points towards the dusk side, and the X-Z plane contains the dipole axis.

        Magnetic Field Aligned (MFA):   Z-axis points along magnetic field lines, the Y-axis is the orthonormal cross product of the Z-axis and a vector pointing towards the Sun, and the X-axis completes the right handed system.
Acknowledgement
NASA Contract NAS5-02099, V. Angelopoulos for use of data from the THEMIS Mission, C.W. Carlson, and J. McFadden.
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Vassilis.Angelopoulos
2.CoInvestigatorspase://SMWG/Person/Charles.W.Carlson
3.CoInvestigatorspase://SMWG/Person/James.P.McFadden
PriorIDs
spase://VMO/NumericalData/THEMIS/E/MOM/PT3S
spase://VSPO/NumericalData/THEMIS/E/MOM/PT3S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

NASA/GSFC CDAWeb ftp access to the data.

AccessURL
Name
HTTPS from SPDF
URL
Description

NASA/GSFC CDAWeb http access to the data.

Format
CDF
Acknowledgement
Please acknowledge the THEMIS science team and the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
ProductKey
THE_L2_MOM
Description

Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb

Format
Text
Acknowledgement
Please acknowledge the THEMIS science team and the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
THEMIS L2 MOM data at UC Berkeley
URL
Description

CDF data files for download, organized by date.

Format
CDF
Encoding
None
ProcessingLevel
Calibrated
ProviderProcessingLevel
Level 2
InstrumentIDs
MeasurementType
ThermalPlasma
MeasurementType
EnergeticParticles
MeasurementType
IonComposition
TemporalDescription
TimeSpan
StartDate
2007-08-10 00:00:16
RelativeStopDate
-P7D
Cadence
PT3S
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosheath
Caveats
Due to bit errors and data misdirection, ESA data (including moments) before April 27, 2007 should be considered dubious. Other data loss and formatting errors in the moments calculations and the ETC were not corrected until Aug. 6, 2007. Potential data from the EFI was not properly included in calculations between Nov. 18-22, 2007. EFI booms on THEMIS-E were not deployed until June 7, 2007, 19:00:00 UT. Moments data before this date is suspect to error from photoelectrons and spacecraft charging.
Parameter #1
Name
Ion Moment Data Quality
ParameterKey
the_peim_data_quality
Description

0 = good data, 1 = missing S/C potential, 2 = electron density greater than 2ion density, 3 = ion density greater than 2electron density

ValidMin
0
ValidMax
4
Support
SupportQuantity
Other
Parameter #2
Name
Electron Moment Data Quality
ParameterKey
the_peem_data_quality
Description

0 = good data, 1 = missing S/C potential, 2 = electron density greater than 2ion density, 3 = ion density greater than 2electron density

ValidMin
0
ValidMax
4
Support
SupportQuantity
Other
Parameter #3
Name
ESA On Board Moment (MOM) Ion Density, THEMIS-E
ParameterKey
the_peim_densityQ
Description

ESA Scalar ion number density calculated on board the spacecraft.

Units
cm^-3
UnitsConversion
1e6>m^-3
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #4
Name
Ion Total Pressure
ParameterKey
the_peim_ptotQ
Description

Total ion pressure calculated on the ground from on board moments.

Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #5
Name
Ion Particle Flux Vector
ParameterKey
the_peim_fluxQ
Description

ESA ion particle flux vector (in DSL coordinates) calculated on board the spacecraft.

Units
#/(cm^2*s)
UnitsConversion
1e4>#/(m^2*s)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Fx_ion MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Fy_ion MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Fz_ion MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
NumberFlux
Parameter #6
Name
Ion Momentum Flux Tensor
ParameterKey
the_peim_mftensQ
Description

ESA ion momentum flux tensor (in DSL coordinates) calculated on board the spacecraft (six-component, off-diagonal terms are symetric).

Units
eV/cm^3
UnitsConversion
1.60217653e-13>J/(m^3)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
6
Element
Name
MFxx_ion MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFyy_ion MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFzz_ion MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFxy_ion MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFxz_ion MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFyz_ion MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Moment
Qualifier
Tensor
ParticleQuantity
EnergyDensity
Parameter #7
Name
Ion Energy Flux Vector
ParameterKey
the_peim_efluxQ
Description

ESA Ion energy flux vector (in DSL coordinates) calculated on board the spacecraft.

Units
eV/(cm^2*s)
UnitsConversion
1.60217653e-15>J/(m^2*s)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Efx_ion MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Efy_ion MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Efz_ion MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
EnergyFlux
Parameter #8
Name
Ion Velocity Vector in DSL
ParameterKey
the_peim_velocity_dslQ
Description

ESA Ion velocity vector (in DSL coordinates, see chart in data description) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Vx_ion DSL MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_ion DSL MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_ion DSL MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #9
Name
Ion Velocity Vector in GSE
ParameterKey
the_peim_velocity_gseQ
Description

ESA Ion velocity vector (in GSE coordinates, see chart in data description) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
Vx_ion GSE MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_ion GSE MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_io n GSE MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #10
Name
Ion Velocity Vector in GSM
ParameterKey
the_peim_velocity_gsmQ
Description

ESA Ion velocity vector (in GSM coordinates, see chart in data description) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
Structure
Size
3
Element
Name
Vx_ion GSM MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_ion GSM MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_ion GSM MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #11
Name
Ion Pressure Tensor
ParameterKey
the_peim_ptensQ
Description

ESA Ion pressure tensor (in DSL coordinates, see chart in data description) calculated on the ground from spacecraft moments.

Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
6
Element
Name
Pxx_ion MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyy_ion MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pzz_ion MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxy_ion MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxz_ion MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyz_ion MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #12
Name
Magnetic Field Vector DSL (Same time array as MOM Ion ESA data)
ParameterKey
the_peim_magQ
Description

Magnetic field vector in DSL coordinates (same time array as MOM Ion ESA data); for calculated of field aligned moments.

Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Bx_ion DSL MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
By_ion DSL MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Bz_ion DSL MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #13
Name
Ion Velocity Vector, Field Aligned
ParameterKey
the_peim_velocity_magQ
Description

ESA Ion velocity vector in magnetic field aligned coordinates; calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
3
Element
Name
Vx_ion FA MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_ion FA MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_ion FA MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #14
Name
Ion Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA)
ParameterKey
the_peim_t3_magQ
Description

Ion Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA)

Caveats
ESA Three dimentional temperature in magnetic field aligned coordinates (see chart in data description).
Units
eV
UnitsConversion
1.60217653e-19>J
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
3
Element
Name
Tx_ion FA MOM ESA-E
Index
1
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Element
Name
Ty_ion FA MOM ESA-E
Index
2
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Element
Name
Tz_ion FA MOM ESA-E
Index
3
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Energy
Parameter #15
Name
Ion Pressure Tensor, Field Aligned
ParameterKey
the_peim_ptens_magQ
Description

Ion Pressure Tensor, Field Aligned

Caveats
ESA Symmetric pressure tensor about magnetic field aligned coordinates (see chart in data description); calculated on the ground from spacecraft moments.
Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
6
Element
Name
Pxx_ion FA MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyy_ion FA MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pzz_ion FA MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxy_ion FA MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxz_ion FA MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyz_ion FA MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #16
Name
the_peim_time
ParameterKey
the_peim_time
Description

the_peim_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample.

Caveats
Not including leap seconds.
Units
s
ValidMin
0.0
ValidMax
5.0E9
FillValue
NaN
Support
SupportQuantity
Temporal
Parameter #17
Name
ESA On Board Moment (MOM) Electron Density, THEMIS-E
ParameterKey
the_peem_densityQ
Description

ESA electron density calculated on board the spacecraft.

Units
cm^-3
UnitsConversion
1e6>m^-3
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Scalar
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #18
Name
Electron Total Pressure
ParameterKey
the_peem_ptotQ
Description

ESA Electron total pressure calculated on the ground from spacecraft moments.

Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Scalar
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #19
Name
Electron Particle Flux Vector
ParameterKey
the_peem_fluxQ
Description

ESA Electron particle flux vector (in DSL coordinates) calculated on board the spacecraft.

Units
#/(cm^2*s)
UnitsConversion
1e4>#/(m^2*s)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Fx_elec MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Fy_elec MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Fz_elec MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
NumberFlux
Parameter #20
Name
Electron Momentum Flux Tensor
ParameterKey
the_peem_mftensQ
Description

ESA Electron momentum flux tensor (in DSL coordinates) calculated on board the spacecraft.

Units
eV/cm^3
UnitsConversion
1.60217653e-13>J/(m^3)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
6
Element
Name
MFxx_elec MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFyy_elec MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFzz_elec MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFxy_elec MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFxz_elec MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
MFyz_elec MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #21
Name
Electron Energy Flux Vector
ParameterKey
the_peem_efluxQ
Description

ESA Electron energy flux vector (in DSL coordinates) calculated on board the spacecraft.

Units
eV/(cm^2*s)
UnitsConversion
1.60217653e-15>J/(m^2*s)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Efx_elec MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Efy_elec MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Efz_elec MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
EnergyFlux
Parameter #22
Name
Electron Velocity Vector in DSL
ParameterKey
the_peem_velocity_dslQ
Description

ESA Electron velocity vectors (in DSL coordinates) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Vx_elec DSL MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_elec DSL MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_elec DSL MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #23
Name
Electron Velocity Vector in GSE
ParameterKey
the_peem_velocity_gseQ
Description

ESA Electron velocity vector (in GSE coordinates) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
Vx_elec GSE MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_elec GSE MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_elec GSE MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #24
Name
Electron Velocity Vector in GSM
ParameterKey
the_peem_velocity_gsmQ
Description

ESA Electron velocity vector (in GSM coordinates) calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
Structure
Size
3
Element
Name
Vx_elec GSM MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_elec GSM MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_elec GSM MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #25
Name
Electron Pressure Tensor
ParameterKey
the_peem_ptensQ
Description

ESA Electron pressure tensor (in DSL coordinates) calculated on the ground from spacecraft moments.

Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
6
Element
Name
Pxx_elec MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyy_elec MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pzz_elec MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxy_elec MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxz_elec MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyz_elec MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #26
Name
Magnetic Field Vector DSL (Same time array as MOM Electron ESA data)
ParameterKey
the_peem_magQ
Description

Magnetic Field Vector in DSL coordinates (same time array as MOM Electron ESA data); for calculation of field-aligned moments.

Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SR2
Structure
Size
3
Element
Name
Bx_elec DSL MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
By_elec DSL MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Bz_elec DSL MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #27
Name
Electron Velocity Vector, Field Aligned
ParameterKey
the_peem_velocity_magQ
Description

ESA Electron velocity vector in magnetic field aligned coordinates; calculated on the ground from spacecraft moments.

Units
km/s
UnitsConversion
1e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
3
Element
Name
Vx_elec FA MOM ESA-E
Index
1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vy_elec FA MOM ESA-E
Index
2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Element
Name
Vz_elec FA MOM ESA-E
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Velocity
Parameter #28
Name
Electron Temperature, Field Aligned (TprpFA1, TprpFA2, TparFA)
ParameterKey
the_peem_t3_magQ
Description

Three dimentional electron temperature in magnetic field aligned coordinates; calculated on the ground from spacecraft moments. (TprpFA1, TprpFA2, TparFA)

Caveats
3d temperatures around magnetic axis (Z) and normal axes (X,Y), where Y is Z direction crosed into Sun direction, and X completes orthogonal system.
Units
eV
UnitsConversion
1.60217653e-19>J
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
3
Element
Name
Tx_elec FA MOM ESA-E
Index
1
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Element
Name
Ty_elec FA MOM ESA-E
Index
2
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Element
Name
Tz_elec FA MOM ESA-E
Index
3
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
Energy
Parameter #29
Name
Electron Pressure Tensor, Field Aligned
ParameterKey
the_peem_ptens_magQ
Description

ESA Electron pressure tensor in magnetic field aligned coordinates; calculated on the ground from spacecraft moments.

Caveats
Pressure tensor around magnetic axis (Z) and normal axes (X,Y), where Y is Z direction crosed into Sun direction, and X completes orthogonal system.
Units
eV/cm^3
UnitsConversion
1.60217653e-13>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
MFA
Structure
Size
6
Element
Name
Pxx_elec FA MOM ESA-E
Index
1
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyy_elec FA MOM ESA-E
Index
2
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pzz_elec FA MOM ESA-E
Index
3
ValidMin
-1.0E10
ValidMax
1.0E 10
FillValue
NaN
Element
Name
Pxy_elec FA MOM ESA-E
Index
4
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pxz_elec FA MOM ESA-E
Index
5
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Element
Name
Pyz_elec FA MOM ESA-E
Index
6
ValidMin
-1.0E10
ValidMax
1.0E10
FillValue
NaN
Particle
ParticleType
Electron
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
EnergyDensity
Parameter #30
Name
the_peem_time
ParameterKey
the_peem_time
Description

the_peem_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample.

Caveats
Not including leap seconds.
Units
s
ValidMin
0.0
ValidMax
5.0E9
FillValue
NaN
Support
SupportQuantity
Temporal
Parameter #31
Name
Spacecraft Potential, THEMIS-E
ParameterKey
the_pxxm_pot
Description

Spacecraft potential as measured by the EFI.

Units
V
ValidMin
0.0
ValidMax
1.0E10
FillValue
NaN
Support
SupportQuantity
Other
Parameter #32
Name
the_pxxm_time
ParameterKey
the_pxxm_time
Description

the_pxxm_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample.

Caveats
Not including leap seconds.
Units
s
ValidMin
0.0
ValidMax
5.0E9
FillValue
NaN
Support
SupportQuantity
Temporal