Version:2.4.0
NumericalData
ResourceID
spase://CNES/NumericalData/CDPP-Archive/MMS-2/FPI/DIS/MMS_FPI_2_L2_FAST_DIS_MOM
ResourceHeader
ResourceName
MMS-2 FPI DIS Level-2 Fast ion moments (CDF)
DOI
https://doi.org/10.24400/802406/rafs-bhfa
ReleaseDate
2022-07-07 14:05:24Z
Description
This dataset provides the moments of the ion distribution at the FAST cadence (4.5 s) computed from the full distribution function and corrected from a number of effects (including the spacecraft electrostatic potential). The dataset comprises the main moments: density, velocity vector, temperatures (and associated pressure tensor), and heat flux. They are provided in GSE frame.
For more information on the FPI instruments, data set, and user guide, please see:
MMS Science Data Center (https://lasp.colorado.edu/mms/sdc/public/datasets/fpi/)
MMS FPI Data Users and Products Guide (https://lasp.colorado.edu/galaxy/display/MFDPG/MMS+FPI+Data+Users+and+Products+Guide)
FPI Release Notes (https://lasp.colorado.edu/mms/sdc/public/datasets/fpi/mms-FPIReleaseNotes-220217.pdf)
Acknowledgement
FPI data, as a data set of the MMS-SMART data products, are open to all scientists and the public (Users).
Users should contact the MMS-SMART Principal Investigator (PI) J. L. Burch and B. Giles the FPI Lead to consult on the appropriate use of instrument data.
Users should acknowledge the sources of data used in all publications, presentations, and reports.
Please send information on the use of these data to:
PI: J. L. Burch [jburch@swri.edu]
FPI Lead: B. Giles [barbara.giles@gsfc.nasa.gov]
We suggest to add the following lines into the acknowledgments:
The authors acknowledge NASA, CNES (Centre National d'Etudes Spatiales) and CNRS (Centre National de la Recherche Scientifique) for their support to the MMS/FPI team and the CDPP (Centre de Données de la Physique des Plasmas) for the distribution of the MMS/SCM data.
and if PI/coI are not part of the publication list, then we suggest to add Specifically, we acknowledge J. L. Burch for use of data from the MMS-SMART mission, B. Giles for use of FPI data.
For more informations about data rights and rules, see MMS Science Data center
The following paper should also be used to reference:
Pollock, C., T. Moore, A. Jacques, J. Burch, U. Gliese, Y. Saito, T. Omoto, L. Avanov, A. Barrie, V. Coffey, J. Dorelli, D. Gershman, B. Giles, T. Rosnack, C. Salo, S. Yokota, M. Adrian, C. Aoustin, C. Auletti, S. Aung, V. Bigio, N. Cao, M. Chandler, D. Chornay, K. Christian, G. Clark, G. Collinson, T. Corris, A. De Los Santos, R. Devlin, T. Diaz, T. Dickerson, C. Dickson, A. Diekmann, F. Diggs, C. Duncan, A. Figueroa-Vinas, C. Firman, M. Freeman, N. Galassi, K. Garcia, G. Goodhart, D. Guererro, J. Hageman, J. Hanley, E. Hemminger, M. Holland, M. Hutchins, T. James, W. Jones, S. Kreisler, J. Kujawski, V. Lavu, J. Lobell, E. LeCompte, A. Lukemire, E. MacDonald, A. Mariano, T. Mukai, K. Narayanan, Q. Nguyan, M. Onizuka, W. Paterson, S. Persyn, B. Piepgrass, F. Cheney, A. Rager, T. Raghuram, A. Ramil, L. Reichenthal, H. Rodriguez, J. Rouzaud, A. Rucker, Y. Saito, M. Samara, J.-A. Sauvaud, D. Schuster, M. Shappirio, K. Shelton, D. Sher, D. Smith, K. Smith, S. Smith, D. Steinfeld, R. Szymkiewicz, K. Tanimoto, J. Taylor, C. Tucker, K. Tull, A. Uhl, J. Vloet, P. Walpole, S. Weidner, D. White, G. Winkert, P.-S. Yeh, M. Zeuch (2016), Fast Plasma Investigation for Magnetospheric Multiscale, Space Sci. Rev., DOI: 10.1007/s11214-016-0245-4.
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessURL
Name
REGARDS
URL
Description
Access via CNES Data Archive for CDPP
Format
CDF
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
EnergeticParticles
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
2015-06-22 00:00:00Z
StopDate
2021-09-30 00:00:00Z
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
Data Quality Error Flags
Description
MMS2 FPI/DIS Vector of Data Quality Indicator Flag Flags at Survey Start Time
Caveats
A Value of Zero signifies no Quality Errors. For Non-Zero Values: Bit-0=Manually flagged Interval, Bit-1=Overcounting/Saturation Effects likely present in Sky Map, Bit-2=Reported Spacecraft Potential above 20 V, Bit-3=Invalid/Unavailable Spacecraft Potential, Bit-4=Significant (>10%) Cold Plasma (<10 eV) Component, Bit-5=Significant (>25%) Hot Plasma (>30 keV) Component, Bit-6=High Sonic Mach Number (V/Vth > 2.5), Bit-7=Low calculated Density (N_DIS ≤ 0.0 cm^-3), Bit-8=Bent Pipe Magnetic Field used instead of Survey l2pre Magnetic Field, Bit-10=No internally generated Photoelectron Correction applied, Bit-11=Compression Pipeline Error, Bit-12=Spintone Calculation Error (DBCS only), Bit-13=Significant (≥20%) Penetrating Radiation
Support
Parameter #2
Name
Compression Flag
Description
MMS2 FPI/DIS Compression Lossless/Lossy Indicator Flag at Survey Start Time
Caveats
Compression Loss Indicator, 0=Lossless, 1=Lossy
Support
Parameter #3
Name
Start Del-Phi Count
Description
MMS2 FPI/DIS Del-Phi (Observatory Spin Phase) Count at Survey Start Time
Caveats
Nominally, the Spin Phase Counts range over [0000,5759] Counts. Each Count represents 1/16 of a Degree (0.0625°) of Observatory Spin Phase. Zero Spin Phase Angle indicates that the Observatory +X-axis is aligned with the Sun Sensor Axis.
Support
Parameter #4
Name
Start Del-Phi Angle
Description
MMS2 FPI/DIS Del-Phi (Observatory Spin Phase) Angle at Survey Start Time
Caveats
Nominally, the Spin Phase Angles range over [0°,360°). Each Count represents 1/16 of a Degree (0.0625°) of Observatory Spin Phase. Zero Spin Phase Angle indicates that the Observatory +X-axis is aligned with the Sun Sensor Axis.
Support
Qualifier
DirectionAngle.AzimuthAngle
Qualifier
PhaseAngle
SupportQuantity
Positional
Parameter #5
Name
Ion Energy Spectrum, DBCS +X Direction
Description
MMS2 FPI/DIS Ion Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, +X Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the +X Axis (Instrument Look Angles: 45° ≤ Theta < 135° and 135° ≤ Phi < 225°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.I
ParticleQuantity
NumberFlux
Parameter #6
Name
Ion Energy Spectrum, DBCS -X Direction
Description
MMS2 FPI/DIS Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, -X Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the -X Axis (Instrument Look Angles: 45° ≤ Theta < 135° and Phi ≥ 315° or Phi < 45°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.I
ParticleQuantity
NumberFlux
Parameter #7
Name
Ion Energy Spectrum, DBCS +Y Direction
Description
MMS2 FPI/DIS Ion Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, +Y Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the +Y Axis (Instrument Look Angles: 45° ≤ Theta < 135° and 225° ≤ Phi < 315°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.J
ParticleQuantity
NumberFlux
Parameter #8
Name
Ion Energy Spectrum, DBCS -Y Direction
Description
MMS2 FPI/DIS Ion Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, -Y Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the -Y Axis (Instrument Look Angles: 45° ≤ Theta < 135° and 45° ≤ Phi < 135°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.J
ParticleQuantity
NumberFlux
Parameter #9
Name
Ion Energy Spectrum, DBCS +Z Direction
Description
MMS2 FPI/DIS Ion Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, +Z Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the +Z Axis (Instrument Look Angles: 135° ≤ Theta < 180° and 0° ≤ Phi < 360°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.K
ParticleQuantity
NumberFlux
Parameter #10
Name
Ion Energy Spectrum, DBCS -Z Direction
Description
MMS2 FPI/DIS Ion Energy Spectrum near the De-spun Body Spacecraft Coordinate System, DBCS, -Z Axis during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over Particles whose DBCS Flow Direction is within 45° (Polar and Azimuthal) of the -Z Axis (Instrument Look Angles: 0° ≤ Theta < 45° and 0° ≤ Phi < 360°).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Array
Qualifier
Component.K
ParticleQuantity
NumberFlux
Parameter #11
Name
Ion Energy Spectrum, Omni-Directional
Description
MMS2 FPI/DIS Omni-Directional Ion Energy Spectrum during this Survey
Caveats
Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over all Directions (Flow or Look).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
Particle
ParticleType
Ion
Qualifier
Array
ParticleQuantity
NumberFlux
Parameter #12
Name
Ion Energy Spectrum, Background
Description
MMS2 FPI/DIS Ion Energy Spectrum Background during this Survey
Caveats
Background Differential Energy Flux by Energy Bin, averaged (weighted by Solid Angle) over all Directions (Flow or Look).
Units
keV/(cm^2 s sr keV)
UnitsConversion
1.0e4>J/(m^2 s sr J)
Particle
ParticleType
Ion
Qualifier
Scalar
Qualifier
Magnitude
ParticleQuantity
NumberFlux
Parameter #13
Name
Ion Number Density, Background
Description
MMS2 FPI/DIS Ion Number Density Background during this Survey
Caveats
Background Number Density derived via Integration of the estimated Background Differential Energy Flux.
Units
cm^-3
UnitsConversion
1.0e6>m^-3
Particle
ParticleType
Ion
Qualifier
Magnitude
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #14
Name
Ion Number Density
Description
MMS2 FPI/DIS Ion Number Density during this Survey
Units
cm^-3
UnitsConversion
1.0e6>m^-3
Particle
ParticleType
Ion
Qualifier
Magnitude
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #15
Name
Ion Number Density, Error
Description
MMS2 FPI/DIS Ion Number Density Error during this Survey
Units
cm^-3
UnitsConversion
1.0e6>m^-3
Particle
ParticleType
Ion
Qualifier
Magnitude
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #16
Name
Ion Number Density, Extrapolation
Description
MMS2 FPI/DIS Estimated Contribution (via Extrapolation to Zero) to the Ion Number Density Integral below 10 eV
Units
cm^-3
UnitsConversion
1.0e6>m^-3
Particle
ParticleType
Ion
Qualifier
Magnitude
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #17
Name
Ion Number Density, Extrapolation, High
Description
MMS2 FPI/DIS Estimated Contribution (via Extrapolation to Infinity) to the Ion Number Density Integral above 30 keV
Units
cm^-3
UnitsConversion
1.0e6>m^-3
Particle
ParticleType
Ion
Qualifier
Magnitude
Qualifier
Moment
ParticleQuantity
NumberDensity
Parameter #18
Name
Ion Bulk Velocity Vector, DBCS
Description
MMS2 FPI/DIS Ion Bulk Velocity Vector during this Survey, De-spun Body Spacecraft Coordinate System, DBCS
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
FlowVelocity
Parameter #19
Name
Ion Bulk Velocity Spintone Vector, DBCS
Description
MMS2 FPI/DIS Ion Bulk Velocity estimated Spintone Vector during this Survey, De-spun Body Spacecraft Coordinate System, DBCS
Caveats
Estimated Systematic Error (Positive or Negative) in Spin Plane Bulk Velocity (km/s) due to imperfect Sensor Suite Flat-Fielding. This Error can be subtracted from the Bulk Velocity to obtain the corrected Velocity Vector.
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
FlowVelocity
Parameter #20
Name
Ion Bulk Velocity Vector, GSE
Description
MMS2 FPI/DIS Ion Bulk Velocity Vector during this Survey in Geocentric Solar Ecliptic, GSE, Coordinates
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
FlowVelocity
Parameter #21
Name
Ion Bulk Velocity Spintone Vector, GSE
Description
MMS2 FPI/DIS Ion Bulk Velocity estimated Spintone Vector during this Survey in Geocentric Solar Ecliptic, GSE, Coordinates
Caveats
Estimated Systematic Error (Positive or Negative) in Spin Plane Bulk Velocity (km/s) due to imperfect Sensor Suite Flat-Fielding. This Error can be subtracted from the Bulk Velocity to obtain the corrected Velocity Vector.
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
FlowVelocity
Parameter #22
Name
Ion Bulk Velocity Error Vector
Description
MMS2 FPI/DIS Ion Bulk Velocity Error Vector during this Survey
Caveats
The Error can be applied to Data expressed by using either DBCS or GSE Coordinates
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
Qualifier
Uncertainty
ParticleQuantity
FlowVelocity
Parameter #23
Name
Ion Pressure Tensor, DBCS
Description
MMS2 FPI/DIS Ion Pressure Tensor during this Survey, De-spun Body Spacecraft Coordinate System, DBCS. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The 3⨯3 Matrix is represented as: Row 1: Pxx Pxy Pxz, Row 2: Pyx Pyy Pyz, Row 3: Pzx Pzy Pzz. Note that Pij=Pji.
Units
nPa
UnitsConversion
1.0e-9>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
Pressure
Parameter #24
Name
Ion Pressure Tensor, GSE
Description
MMS2 FPI/DIS Ion Pressure Tensor during this Survey in Geocentric Solar Ecliptic, GSE, Coordinates. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The 3⨯3 Matrix is represented as: Row 1: Pxx Pxy Pxz, Row 2: Pyx Pyy Pyz, Row 3: Pzx Pzy Pzz. Note that Pij=Pji.
Units
nPa
UnitsConversion
1.0e-9>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
Pressure
Parameter #25
Name
Ion Pressure Tensor, Error
Description
MMS2 FPI/DIS Ion Pressure Tensor Error during this Survey. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The Error can be applied to Data expressed by using either DBCS or GSE Coordinates
Units
nPa
UnitsConversion
1.0e-9>Pa
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
Qualifier
Uncertainty
ParticleQuantity
Pressure
Parameter #26
Name
Ion Pressure, Background
Description
MMS2 FPI/DIS Ion Pressure Background during this Survey
Units
nPa
UnitsConversion
1.0e-9>Pa
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Scalar
Qualifier
Moment
ParticleQuantity
Pressure
Parameter #27
Name
Ion Temperature Tensor, DBCS
Description
MMS2 FPI/DIS Ion Temperature Tensor during this Survey, De-spun Body Spacecraft Coordinate System, DBCS. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The 3⨯3 Matrix is represented as: Row 1: Txx Txy Txz, Row 2: Tyx Tyy Tyz, Row 3: Tzx Tzy Tzz. Note that Tij=Tji.
Units
eV
UnitsConversion
1.602176565e-19>J
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
Temperature
Parameter #28
Name
Ion Temperature Tensor, GSE
Description
MMS2 FPI/DIS Ion Temperature Tensor during this Survey in Geocentric Solar Ecliptic, GSE, Coordinates. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The 3⨯3 Matrix is represented as: Row 1: Txx Txy Txz, Row 2: Tyx Tyy Tyz, Row 3: Tzx Tzy Tzz. Note that Tij=Tji.
Units
eV
UnitsConversion
1.602176565e-19>J
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
ParticleQuantity
Temperature
Parameter #29
Name
Ion Temperature Tensor, Error, DBCS
Description
MMS2 FPI/DIS Ion Temperature Tensor Error during this Survey. Column 1 Labels from : [x,y,z]. Column 2 Labels from : [x,y,z].
Caveats
The Error can be applied to Data expressed by using either DBCS or GSE Coordinates
Units
eV
UnitsConversion
1.602176565e-19>J
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Tensor
Qualifier
Moment
Qualifier
Uncertainty
ParticleQuantity
Temperature
Parameter #30
Name
Ion Heat Flux Vector, DBCS
Description
MMS2 FPI/DIS Ion Heat Flux Vector Vector during this Survey, De-spun Body Spacecraft Coordinate System, DBCS
Units
mW/m^2
UnitsConversion
1.0e-3>W/m^2
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
HeatFlux
Parameter #31
Name
Ion Heat Flux Vector, GSE
Description
MMS2 FPI/DIS Ion Heat Flux Vector Vector during this Survey in Geocentric Solar Ecliptic, GSE, Coordinates
Units
mW/m^2
UnitsConversion
1.0e-3>W/m^2
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
ParticleQuantity
HeatFlux
Parameter #32
Name
Ion Heat Flux Error Vector
Description
MMS2 FPI/DIS Ion Heat Flux Error Vector during this Survey
Caveats
The Error can be applied to Data expressed by using either DBCS or GSE Coordinates
Units
mW/m^2
UnitsConversion
1.0e-3>W/m^2
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Particle
ParticleType
Ion
Qualifier
Vector
Qualifier
Moment
Qualifier
Uncertainty
ParticleQuantity
HeatFlux
Parameter #33
Name
Ion Sky Map Energy
Description
MMS2 FPI/DIS Ion Fast Survey Sky Map Energy
Caveats
Geometric Mean of Parity 0 and Parity 1 Energies in the 64-step FPI Energy Table
Units
eV
UnitsConversion
1.602176565e-19>J
Particle
ParticleType
Ion
Qualifier
Array
ParticleQuantity
Energy
Parameter #34
Name
Ion Sky Map Energy, Delta Value
Description
MMS2 FPI/DIS Ion Fast Survey Sky Map Energy, Delta Value
Caveats
Note that the Deltas are provided to indicate that the FPI is reporting the Energy Bin Centers. The Deltas do not necessarily reflect the Energy Bandwidth that is sampled by the FPI for a given Energy Step.
Units
eV
UnitsConversion
1.602176565e-19>J
Particle
ParticleType
Ion
Qualifier
Array
ParticleQuantity
Energy
Parameter #35
Name
Ion Parallel Temperature
Description
MMS2 FPI/DIS Ion Parallel Temperature during this BP
Units
eV
UnitsConversion
1.602176565e-19>J
Particle
ParticleType
Ion
Qualifier
Parallel
Qualifier
FieldAligned
Qualifier
Scalar
ParticleQuantity
Temperature
Parameter #36
Name
Ion Perpendicular Temperature
Description
MMS2 FPI/DIS Ion Perpendicular Temperature during this BP
Units
eV
UnitsConversion
1.602176565e-19>J
Particle
ParticleType
Ion
Qualifier
Perpendicular
Qualifier
Scalar
ParticleQuantity
Temperature