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MMS 1 Electron Drift Instrument (EDI) Electric Field, Level 2, Quick-Look Survey

ResourceID
spase://NASA/NumericalData/MMS/1/FIELDS/EDI/Survey/Level2/ElectricField/PT5S

Description

Electron Drift Instrument (EDI) Electric Field Survey, Level 2, 5 s Data. EDI has two scientific data acquisition modes, called electric field mode and ambient mode. In electric field mode, two coded electron beams are emitted such that they return to the detectors after one or more gyrations in the ambient magnetic and electric field. The firing directions and times-of-flight allow the derivation of the drift velocity and electric field. In ambient mode, the electron beams are not used. The detectors with their large geometric factors and their ability to adjust the field of view quickly allow continuous sampling of ambient electrons at a selected pitch angle and fixed but selectable energy. To find the beam directions that will hit the detector, EDI sweeps each beam in the plane perpendicular to B at a fixed angular rate of 0.22 °/ms until a signal has been acquired by the detector. Once signal has been acquired, the beams are swept back and forth to stay on target. Beam detection is not determined from the changes in the count-rates directly, but from the square of the beam counts divided by the background counts from ambient electrons, i.e., from the square of the instantaneous signal-to-noise ratio (SNR). This quantity is computed from data provided by the correlator in the Gun-Detector Electronics that also generates the coding pattern imposed on the outgoing beams. If the squared SNR ratio exceeds a threshold, this is taken as evidence that the beam is returning to the detector. The thresholds for SNR are chosen dependent on background fluxes. They represent a compromise between getting false hits (induced by strong variations in background electron fluxes) and missing true beam hits. The basic software loop that controls EDI operations is executed every 2 ms. As the times when the beams hit their detectors are neither synchronized with the telemetry nor equidistant, EDI data have no fixed time-resolution. Data are reported in telemetry slots. In Survey, using the standard packing mode 0, there are eight telemetry slots per second and Gyn Detector Unit (GDU). The last beam detected during the previous slot will be reported in the current slot. If no beam has been detected, the data quality will be set to zero. In Burst telemetry there are 128 slots per second and GDU. The data in each slot consists of information regarding the beam firing directions (stored in the form of analytic gun deflection voltages), times-of-flight (if successfully measured), quality indicators, time stamps of the beam hits, and some auxiliary correlator-related information. Whenever EDI is not in electron drift mode, it uses its ambient electron mode. The mode has the capability to sample at either 90 degrees pitch angle or at 0/180 degrees (field aligned), or to alternate between 90 degrees and field aligned with selectable dwell times. While all options have been demonstrated during the commissioning phase, only the field aligned mode has been used in the routine operations phase. The choices for energy are 250 eV, 500 eV, and 1 keV. The two detectors, which are facing opposite hemispheres, are looking strictly into opposite directions, so while one detector is looking along B the other is looking antiparallel to B (corresponding to pitch angles of 180 and 0 degrees, respectively). The two detectors switch roles every half spin of the spacecraft as the tip of the magnetic field vector spins outside the field of view of one detector and into the field of view of the other detector. This is the primary data product generated from data collected in electric field mode. The science data generated are drift velocity and electric field data in various coordinate systems. They are derived from triangulation and/or time-of-flight analysis. Where both methods are applicable, their results will be combined using a weighting approach based on their relative errors. The EDI instrument paper can be found at: http://link.springer.com/article/10.1007%2Fs11214-015-0182-7. The EDI instrument data products guide can be found at https://lasp.colorado.edu/mms/sdc/public/datasets/fields/.

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Details

Version:2.3.2

NumericalData

ResourceID
spase://NASA/NumericalData/MMS/1/FIELDS/EDI/Survey/Level2/ElectricField/PT5S
ResourceHeader
ResourceName
MMS 1 Electron Drift Instrument (EDI) Electric Field, Level 2, Quick-Look Survey
ReleaseDate
2021-04-27 15:38:11Z
Description

Electron Drift Instrument (EDI) Electric Field Survey, Level 2, 5 s Data. EDI has two scientific data acquisition modes, called electric field mode and ambient mode. In electric field mode, two coded electron beams are emitted such that they return to the detectors after one or more gyrations in the ambient magnetic and electric field. The firing directions and times-of-flight allow the derivation of the drift velocity and electric field. In ambient mode, the electron beams are not used. The detectors with their large geometric factors and their ability to adjust the field of view quickly allow continuous sampling of ambient electrons at a selected pitch angle and fixed but selectable energy. To find the beam directions that will hit the detector, EDI sweeps each beam in the plane perpendicular to B at a fixed angular rate of 0.22 °/ms until a signal has been acquired by the detector. Once signal has been acquired, the beams are swept back and forth to stay on target. Beam detection is not determined from the changes in the count-rates directly, but from the square of the beam counts divided by the background counts from ambient electrons, i.e., from the square of the instantaneous signal-to-noise ratio (SNR). This quantity is computed from data provided by the correlator in the Gun-Detector Electronics that also generates the coding pattern imposed on the outgoing beams. If the squared SNR ratio exceeds a threshold, this is taken as evidence that the beam is returning to the detector. The thresholds for SNR are chosen dependent on background fluxes. They represent a compromise between getting false hits (induced by strong variations in background electron fluxes) and missing true beam hits. The basic software loop that controls EDI operations is executed every 2 ms. As the times when the beams hit their detectors are neither synchronized with the telemetry nor equidistant, EDI data have no fixed time-resolution. Data are reported in telemetry slots. In Survey, using the standard packing mode 0, there are eight telemetry slots per second and Gyn Detector Unit (GDU). The last beam detected during the previous slot will be reported in the current slot. If no beam has been detected, the data quality will be set to zero. In Burst telemetry there are 128 slots per second and GDU. The data in each slot consists of information regarding the beam firing directions (stored in the form of analytic gun deflection voltages), times-of-flight (if successfully measured), quality indicators, time stamps of the beam hits, and some auxiliary correlator-related information. Whenever EDI is not in electron drift mode, it uses its ambient electron mode. The mode has the capability to sample at either 90 degrees pitch angle or at 0/180 degrees (field aligned), or to alternate between 90 degrees and field aligned with selectable dwell times. While all options have been demonstrated during the commissioning phase, only the field aligned mode has been used in the routine operations phase. The choices for energy are 250 eV, 500 eV, and 1 keV. The two detectors, which are facing opposite hemispheres, are looking strictly into opposite directions, so while one detector is looking along B the other is looking antiparallel to B (corresponding to pitch angles of 180 and 0 degrees, respectively). The two detectors switch roles every half spin of the spacecraft as the tip of the magnetic field vector spins outside the field of view of one detector and into the field of view of the other detector. This is the primary data product generated from data collected in electric field mode. The science data generated are drift velocity and electric field data in various coordinate systems. They are derived from triangulation and/or time-of-flight analysis. Where both methods are applicable, their results will be combined using a weighting approach based on their relative errors. The EDI instrument paper can be found at: http://link.springer.com/article/10.1007%2Fs11214-015-0182-7. The EDI instrument data products guide can be found at https://lasp.colorado.edu/mms/sdc/public/datasets/fields/.

Acknowledgement
J. Burch, R. Torbert, H. Vaith
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/James.L.Burch
2.PrincipalInvestigatorspase://SMWG/Person/Roy.B.Torbert
3.PrincipalInvestigatorspase://SMWG/Person/Hans.E.Vaith
4.MetadataContactspase://SMWG/Person/Robert.E.McGuire
5.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
The Magnetospheric Multiscale (MMS) Mission home page at Goddard Space Flight Center (GSFC)
URL
Description

The Magnetospheric Multiscale (MMS) Mission Home Page hosted by the Goddard Space Flight Center (GSFC).

InformationURL
Name
Data Caveats and Current Release Notes at LASP MMS SDC
URL
Description

The Magnetospheric Multiscale (MMS) Mission home page hosted by the Laboratory of Atmospheric and Space Physics, Science Data Center (LASP, SDC) at the University of Colorado, Boulder.

InformationURL
Name
At UNH
URL
Description

The Magnetospheric Multiscale (MMS) FIELDS Instrument Suite home page. The web page is hosted by the University of New Hampshire (UNH).

PriorIDs
spase://VSPO/NumericalData/MMS/1/FIELDS/EDI/Survey/Level2/ElectricField/PT5S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

In CDF via ftp from SPDF.

AccessURL
Name
HTTPS from SPDF
URL
Description

In CDF via http from SPDF.

AccessURL
Name
CDAWeb
URL
ProductKey
MMS1_EDI_SRVY_L2_EFIELD
Description

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

Format
CDF
Encoding
None
Acknowledgement
J. Burch, R. Torbert, H. Vaith. Please acknowledge the data providers and CDAWeb when using these data.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
MMS1_EDI_SRVY_L2_EFIELD
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
J. Burch, R. Torbert, H. Vaith. Please acknowledge the data providers and CDAWeb when using these data.
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
ElectricField
TemporalDescription
TimeSpan
StartDate
2015-09-01 00:00:00.000
RelativeStopDate
-P2M
Cadence
PT5S
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosphere.RadiationBelt
ObservedRegion
Earth.NearSurface.EquatorialRegion
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description

Epoch Time Tags for Velocity and Electric Field Data, Terrestrial Time 2000 (TT2000)

Cadence
PT5S
Units
ns
UnitsConversion
1e-9>s
RenderingHints
AxisLabel
UT
ValueFormat
I16
ValidMin
2015-03-01T00:00:00.000000000
ValidMax
2065-12-31T00:00:01.000000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #2
Name
Lower-Bound on the Time Tags
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_t_delta_minus_srvy_l2
Description

Lower-Bound on the Epoch Time Tags

Cadence
PT5S
Units
ns
UnitsConversion
1e-9>s
RenderingHints
AxisLabel
dt
ValueFormat
I10
ScaleType
LinearScale
ValidMin
1707-09-22T12:12:10.961224195
ValidMax
2000-01-01T11:59:00.816000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #3
Name
Upper-Bound on the Time Tags
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_t_delta_plus_srvy_l2
Description

Upper-Bound on the Epoch Time Tags

Cadence
PT5S
Units
ns
UnitsConversion
1e-9>s
RenderingHints
AxisLabel
dt
ValueFormat
I10
ScaleType
LinearScale
ValidMin
1707-09-22T12:12:10.961224195
ValidMax
2000-01-01T11:59:00.816000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #4
Name
E x B Drift Velocity Vector (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_vdrift_dsl_srvy_l2
Description

E cross B Drift Velocity Vector in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #5
Name
E x B Drift Velocity Vector (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_vdrift_gse_srvy_l2
Description

E cross B Drift Velocity Vector in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #6
Name
E x B Drift Velocity Vector (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_vdrift_gsm_srvy_l2
Description

E cross B Drift Velocity Vector in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Vector
ParticleQuantity
Velocity
Parameter #7
Name
Electric Field Vector (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_dsl_srvy_l2
Description

Electric Field Vector in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Electric
Parameter #8
Name
Electric Field Vector (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gse_srvy_l2
Description

Electric Field Vector in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Electric
Parameter #9
Name
Electric Field Vector (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gsm_srvy_l2
Description

Electric Field Vector in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
DisplayType
TimeSeries
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Electric
Parameter #10
Name
Triangulation Weight
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_tri_weight_srvy_l2
Description

Weighted Use of Triangulation Method in the Level 2 Results

Cadence
PT5S
RenderingHints
DisplayType
TimeSeries
AxisLabel
TRI weight
ValueFormat
I3
ScaleType
LinearScale
ValidMin
0
ValidMax
100
FillValue
-32768
Support
SupportQuantity
Other
Parameter #11
Name
Triangulation Reduced Chi-Squared
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_tri_rchisq_srvy_l2
Description

Reduced Chi-Squared from Triangulation Analysis

Cadence
PT5S
RenderingHints
AxisLabel
Reduced chi-squared
ValueFormat
F12.4
ScaleType
LinearScale
ValidMin
1.0
ValidMax
500000.0
FillValue
-1.0e+31
Support
SupportQuantity
Other
Parameter #12
Name
Lower-Bound Drift Velocity Vector Error (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_dsl_delta_minus_srvy_l2
Description

Lower-Bound on the E cross B Drift Velocity Error in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #13
Name
Upper-Bound Drift Velocity Vector Error (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_dsl_delta_plus_srvy_l2
Description

Upper-Bound on the E cross B Drift Velocity Error in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #14
Name
Lower-Bound Drift Velocity Vector Error (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_gse_delta_minus_srvy_l2
Description

Lower-Bound on the E cross B Drift Velocity Error in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #15
Name
Upper-Bound Drift Velocity Vector Error (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_gse_delta_plus_srvy_l2
Description

Upper-Bound on the E cross B Drift Velocity Error in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #16
Name
Lower-Bound Drift Velocity Vector Error (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_gsm_delta_minus_srvy_l2
Description

Lower-Bound on the E cross B Drift Velocity Error in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #17
Name
Upper-Bound Drift Velocity Vector Error (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_v_gsm_delta_plus_srvy_l2
Description

Upper-Bound on the E cross B Drift Velocity Error in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
km/s
UnitsConversion
1e-3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Vx
Index
1
Element
Name
Vy
Index
2
Element
Name
Vz
Index
3
ValidMin
-500000.0
ValidMax
500000.0
FillValue
-1.0e+31
Particle
ParticleType
Electron
Qualifier
Uncertainty
ParticleQuantity
Velocity
Parameter #18
Name
Lower-Bound Electric Field Vector Error (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_dsl_delta_minus_srvy_l2
Description

Lower-Bound on the Electric Field Vector Error in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric
Parameter #19
Name
Upper-Bound Electric Field Vector Error (DSL)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_dsl_delta_plus_srvy_l2
Description

Upper-Bound on the Electric Field Vector Error in Despun Angular Momentum (DSL) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric
Parameter #20
Name
Lower-Bound Electric Field Vector Error (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gse_delta_minus_srvy_l2
Description

Lower-Bound on the Electric Field Vector Error in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric
Parameter #21
Name
Upper-Bound Electric Field Vector Error (GSE)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gse_delta_plus_srvy_l2
Description

Upper-Bound on the Electric Field Vector Error in Geocentric Solar Ecliptic (GSE) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric
Parameter #22
Name
Lower-Bound Electric Field Vector Error (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gsm_delta_minus_srvy_l2
Description

Lower-Bound on the Electric Field Vector Error in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric
Parameter #23
Name
Upper-Bound Electric Field Vector Error (GSM)
Set
Time series defined by using: EPOCH
ParameterKey
mms1_edi_e_gsm_delta_plus_srvy_l2
Description

Upper-Bound on the Electric Field Vector Error in Geocentric Solar Magnetospheric (GSM) Cartesian Coordinates

Cadence
PT5S
Units
mV/m
UnitsConversion
1e-3>V/m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSM
RenderingHints
ValueFormat
F12.4
ScaleType
LinearScale
Structure
Size
3
Element
Name
Ex
Index
1
Element
Name
Ey
Index
2
Element
Name
Ez
Index
3
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Uncertainty
FieldQuantity
Electric