Geotail CPI Plasma Key Parameters (64s)

ResourceID

spase://JAXA/NumericalData/Geotail/CPI/KeyParameter/PT64S

Description

A combination of plasma key parameters from the Geotail CPI analyzers.

        The CPI-SW Solar Wind Analyzer provides

     * Ion number density
     * Average proton energy
     * Bulk flow velocity

        The CPI-HP Hot Plasma Analyzer provides

     * Ion number density
     * Average proton energy
     * Average electron energy
     * Bulk flow velocity
     * Plasma pressure

        The CPI-IC Ion Composition Analyzer provides principal Species

     * H+
     * He++
     * He+
     * O+

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Details

Version:2.3.0

NumericalData

ResourceID

spase://JAXA/NumericalData/Geotail/CPI/KeyParameter/PT64S

ResourceHeader

ResourceName: Geotail CPI Plasma Key Parameters (64s)

ReleaseDate: 2019-08-05 15:03:35Z

Description

A combination of plasma key parameters from the Geotail CPI analyzers.

        The CPI-SW Solar Wind Analyzer provides

     * Ion number density
     * Average proton energy
     * Bulk flow velocity

        The CPI-HP Hot Plasma Analyzer provides

     * Ion number density
     * Average proton energy
     * Average electron energy
     * Bulk flow velocity
     * Plasma pressure

        The CPI-IC Ion Composition Analyzer provides principal Species

     * H+
     * He++
     * He+
     * O+

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/Louis.A.Frank
2.	MetadataContact	spase://SMWG/Person/Jan.Merka

InformationURL

Name: CPI Survey Plots

URL: http://www-pi.physics.uiowa.edu/cpi/

Description

Geotail CPI description and survey plots.

PriorIDs

spase://VMO/NumericalData/Geotail/CPI/kp_PT64S

spase://VSPO/NumericalData/Geotail/CPI/KeyParameter/PT64S

AccessInformation

RepositoryID: spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb

Availability: Online

AccessRights: Open

AccessURL

Name: FTP access to files at SPDF

URL: ftps://spdf.gsfc.nasa.gov/pub/data/geotail/cpi/cpi_k0/

AccessURL

Name: HTTP access to files at SPDF

URL: https://spdf.gsfc.nasa.gov/pub/data/geotail/cpi/cpi_k0/

Description

In CDF via HTTP from SPDF

AccessURL

Name: CDAWeb

URL: https://cdaweb.sci.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=GE_K0_CPI&index=sp_phys

ProductKey: GE_K0_CPI

Format: CDF

Encoding: None

InstrumentIDs

spase://SMWG/Instrument/Geotail/CPI/HPA

spase://SMWG/Instrument/Geotail/CPI/SWA

MeasurementType: ThermalPlasma

TemporalDescription

TimeSpan

StartDate: 1992-09-08 07:30:40

RelativeStopDate: -P2D

Cadence: PT64S

ObservedRegion: Heliosphere.NearEarth

ObservedRegion: Earth.Magnetosheath

ObservedRegion: Earth.Magnetosphere

ObservedRegion: Earth.Magnetosphere.Magnetotail

Caveats: The CPI solar wind ion analyzer is an E/Q analyzer and the initial distribution functions were calculated assuming that the plasma is H+. Care must be taken when multi-component plasmas are present. If He++ is present and is flowing with the same speed as the H+ component, it will contribute to the distribution function at twice the velocity (four times the energy) of the H+. To facilitate the automated processing of the data the integral was evaluated between vmin = 171 km/s and vmax = 1.35 × u . The resulting temperatures produce excellent fits to the observations. When He++ is present the distribution functions are consistent with an He++ temperature, THe++ = 4 × TH+, i.e., the H+ and He++ have similar thermal velocities.

Parameter #1

Name: Time

ParameterKey: Epoch

Description

Time in milliseconds, centered, since CDF Epoch

Units: ms

UnitsConversion: 1e-3>s

ValidMin: 08-Sep-1992 00:00:00.000

ValidMax: 31-Dec-2020 20:00:00.000

FillValue: -1.0E31

Support

SupportQuantity: Temporal

Parameter #2

Name: Time

ParameterKey: Time_PB5

Description

Time, centered, in GSFC PB5 format (yr, day, ms). Jan 1 = Day 1.

Structure

Size: 3

Element

Name: Year

Index: 1

Units: year

ValidMin: 1992

ValidMax: 2020

FillValue: -2147483648

Element

Name: Day of year

Index: 2

Units: day

ValidMin: 1

ValidMax: 366

FillValue: -2147483648

Element

Name: Elapsed millisecond of day

Qualifier: Component.I

Index: 3

Units: ms

ValidMin: 0

ValidMax: 86400000

FillValue: -2147483648

Support

SupportQuantity: Temporal

Parameter #3

Name: Ion Number Density (CPI/SWA)

ParameterKey: SW_P_Den

Description

Ion number density (ions 144-7000 eV, 60x60 deg FOV, CPI/SWA), scalar

Caveats: From 5 deg angular bins.

Units: cm^-3

UnitsConversion: 1e6>m^-3

RenderingHints

AxisLabel: n(SWA)

ValueFormat: F8.3

ValidMin: 0.01

ValidMax: 1000.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Moment

Qualifier: Scalar

ParticleQuantity: NumberDensity

EnergyRange

Low: 144

High: 7000

Units: eV

AzimuthalAngleRange

Low: -56.25

High: 56.25

Units: deg

PolarAngleRange

Low: 60

High: 120

Units: deg

Parameter #4

Name: Ion Average Energy (CPI/SWA)

ParameterKey: SW_P_AVGE

Description

Ion average energy (ions 144-7000 eV, in the spacecraft frame of reference, CPI/SWA), scalar

Units: eV

UnitsConversion: 1.60217653e-19>J

RenderingHints

ValueFormat: F7.0

ValidMin: 100.0

ValidMax: 8000.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Average

Qualifier: Scalar

ParticleQuantity: Energy

EnergyRange

Low: 144

High: 7000

Units: eV

AzimuthalAngleRange

Low: -56.25

High: 56.25

Units: deg

PolarAngleRange

Low: 60

High: 120

Units: deg

Parameter #5

Name: Ion bulk Flow Velocity (CPI/SWA)

ParameterKey: SW_V

Description

Ion bulk flow velocity in GSE coordinates (ions 144-7000 eV, 60x60 deg FOV, CPI/SWA)

Caveats: From 5 deg angular bins

Units: km/s

UnitsConversion: 1e3>m/s

CoordinateSystem

CoordinateRepresentation: Cartesian

CoordinateSystemName: GSE

RenderingHints

ValueFormat: F7.0

Structure

Size: 3

Element

Name: Vx

Qualifier: Component.I

Index: 1

ValidMin: -1400.0

ValidMax: 1400.0

FillValue: -1.0E31

Element

Name: Vy

Qualifier: Component.J

Index: 2

ValidMin: -1400.0

ValidMax: 1400.0

FillValue: -1.0E31

Element

Name: Vz

Qualifier: Component.K

Index: 3

ValidMin: -1400.0

ValidMax: 1400.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Moment

Qualifier: Vector

ParticleQuantity: FlowVelocity

EnergyRange

Low: 144

High: 7000

Units: eV

AzimuthalAngleRange

Low: -56.25

High: 56.25

Units: deg

PolarAngleRange

Low: 60

High: 120

Units: deg

Parameter #6

Name: CPI/SWA Data Quality Flag

ParameterKey: Quality_SW

Description

CPI/SWA Data Quality Flag (0: adequate; 100: poor, more problems), scalar

ValidMin: 0.0

ValidMax: 100.0

FillValue: -1.0E31

Support

SupportQuantity: Other

Parameter #7

Name: CPI Post Gap Flag

ParameterKey: GAP_FLAG

Description

CPI Post Gap Flag, scalar

         * 0: no gap immediately prior to this record;
         * 1: gap due to instrument mode;
         * 2: gap due to missing SIRIUS data;
         * 3: gap due to noisy SIRIUS data;
         * 20: gap due to missing Minor Frame(s))

ValidMin: 0

ValidMax: 20

FillValue: -2147483648

Support

SupportQuantity: Other

Parameter #8

Name: Ion Number Density (CPI/HPA)

ParameterKey: HP_P_Den

Description

Ion number density (ions 50-50000 eV, equatorial plane, CPI/HPA), scalar

Caveats: The ions are assumed to be protons

Units: cm^-3

UnitsConversion: 1e6>m^-3

RenderingHints

AxisLabel: n(HPA)

ValueFormat: F8.3

ValidMin: 0.01

ValidMax: 1000.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Moment

Qualifier: Scalar

ParticleQuantity: NumberDensity

Parameter #9

Name: Ion Average Energy (CPI/HPA)

ParameterKey: HP_P_AVGE

Description

Ion average energy (ions 50-50000 eV, equatorial plane, CPI/HPA), scalar

Units: eV

UnitsConversion: 1.60217653e-19>J

RenderingHints

ValueFormat: F7.0

ValidMin: 50.0

ValidMax: 50000.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Average

Qualifier: Scalar

ParticleQuantity: Energy

Parameter #10

Name: Ion Bulk Flow Velocity (CPI/HPA)

ParameterKey: HP_V

Description

Bulk ion flow velocity, approximate GSE X-Y components (ions 50-50000 eV, CPI/HPA)

Units: km/s

UnitsConversion: 1e3>m/s

CoordinateSystem

CoordinateRepresentation: Cartesian

CoordinateSystemName: GSE

RenderingHints

ValueFormat: F7.0

Structure

Size: 2

Element

Name: Vx

Qualifier: Component.I

Index: 1

ValidMin: -4000.0

ValidMax: 4000.0

FillValue: -1.0E31

Element

Name: Vy

Qualifier: Component.J

Index: 2

ValidMin: -4000.0

ValidMax: 4000.0

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Moment

Qualifier: Vector

ParticleQuantity: FlowVelocity

Parameter #11

Name: Electron Average Energy (CPI/HPA)

ParameterKey: HP_E_AVGE

Description

Average electron energy (electrons 50-50000 eV, CPI/HPA), scalar

Units: eV

UnitsConversion: 1.60217653e-19>J

RenderingHints

ValueFormat: F7.0

ValidMin: 50.0

ValidMax: 50000.0

FillValue: -1.0E31

Particle

ParticleType: Electron

Qualifier: Average

Qualifier: Scalar

ParticleQuantity: Energy

Parameter #12

Name: Plasma Pressure (CPI/HPA)

ParameterKey: W

Description

Plasma pressure (50-50000 eV, CPI/HPA), scalar

Units: Pa

ValidMin: 1.0E-15

ValidMax: 1.0E-5

FillValue: -1.0E31

Particle

ParticleType: Proton

ParticleType: AlphaParticle

ParticleType: Ion

Qualifier: Scalar

ParticleQuantity: Pressure

Parameter #13

Name: CPI/HPA Data Quality Flag

ParameterKey: Quality_HP

Description

CPI/HPA data quality flag (0: adequate; 100: poor, more problems), scalar

ValidMin: 0.0

ValidMax: 100.0

FillValue: -1.0E31

Support

SupportQuantity: Other

Parameter #14

Name: CPI/ICA Data Quality Flag

ParameterKey: Quality_IC

Description

CPI/ICA data quality flag (0: adequate; 100: poor, more problems), scalar

ValidMin: 0.0

ValidMax: 100.0

FillValue: -1.0E31

Support

SupportQuantity: Other

Parameter #15

Name: H+ Flag (CPI/ICA)

ParameterKey: H_P_FLAG

Description

H+ flag: non-zero value indicates presence of singly ionized hydrogen, (CPI/ICA), scalar

ValidMin: 0

ValidMax: 99

FillValue: -128

Support

SupportQuantity: Other

Parameter #16

Name: He++ Flag (CPI/ICA)

ParameterKey: HE_PP_FLAG

Description

He++ flag: non-zero value indicates presence of doubly ionized helium, (CPI/ICA)), scalar

ValidMin: 0

ValidMax: 99

FillValue: -128

Support

SupportQuantity: Other

Parameter #17

Name: He+ Flag

ParameterKey: HE_P_FLAG

Description

He+ flag: non-zero value indicates presence of singly ionized helium, (CPI/ICA), scalar

ValidMin: 0

ValidMax: 99

FillValue: -128

Support

SupportQuantity: Other

Parameter #18

Name: O+ Flag (CPI/ICA)

ParameterKey: O_P_FLAG

Description

O+ flag: non-zero value indicates presence of singly ionized atomic oxygen, (CPI/ICA), scalar

ValidMin: 0

ValidMax: 99

FillValue: -128

Support

SupportQuantity: Other