SPASE Resource Description

spase://CNES/NumericalData/CDPP-Archive/MMS-2/FPI/DIS/MMS_FPI_2_L2_FAST_DIS_MOM

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

	Role	Person
1.	PrincipalInvestigator	spase://CNES/Person/CDPP-Archive/James.L.Burch
2.	PrincipalInvestigator	spase://CNES/Person/CDPP-Archive/Barbara.Giles
3.	CoInvestigator	spase://CNES/Person/CDPP-Archive/Vincent.Genot
4.	CoInvestigator	spase://CNES/Person/CDPP-Archive/Jean-Andre.Sauvaud
5.	CoInvestigator	spase://CNES/Person/CDPP-Archive/Benoit.Lavraud

RepositoryID

spase://CNES/Repository/CDPP-Archive/REGARDS-CDPP

Availability

Online

AccessURL

Name

REGARDS

URL

https://regards.cnes.fr/user/cdpp/modules/1777?sp=DatasetName;q=DatasetName:MMS_FPI_2_L2_FAST_DIS_MOM

Description

Access via CNES Data Archive for CDPP

Format

CDF

Calibrated

spase://CNES/Instrument/CDPP-Archive/MMS-2/FPI/DIS

EnergeticParticles

ThermalPlasma

TimeSpan

StartDate

2015-06-22 00:00:00Z

StopDate

2021-09-30 00:00:00Z

Earth.Magnetosheath

Earth.Magnetosphere

Earth.Magnetosphere.Magnetotail

Earth.Magnetosphere.Main

Earth.Magnetosphere.RadiationBelt

Earth.NearSurface.EquatorialRegion

Earth.NearSurface.Plasmasphere

Heliosphere.NearEarth

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

SupportQuantity

Other

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

SupportQuantity

Other

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

SupportQuantity

Other

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

MMS-2 FPI DIS Level-2 Fast ion moments (CDF)

Details

NumericalData