ISS Floating Potential Measurement Unit (FPMU), Summary Parameter 1 s Data

ResourceID

spase://VSPO/NumericalData/ISS/FPMU/PT1S

Description

International Space Station, ISS, Floating Potential Measurement Unit, FPMU, Ionosphere Summary Wide Langmuir Probe, WLP, Density and Narrow Langmuir Probe, NLP, Temperature Records 1 s Data. The Space Dynamics Laboratory, SDL, Utah State University, USU, developed the FPMU for the NASA Johnson Space Center. The FPMU was installed by ISS Crew Members during an Extra Vehicular Activity, EVA, on the Starboard, Sl, Truss of the ISS in early August 2006. The System is based on past USU SDL Space Instruments and incorporates a Floating Potential Probe, Multiple Langmuir Probes, and a Plasma Frequency Probe into one Sensor Suite. The FPMU is used to correct the Charging Models of the Station each time a New Section is added to the Structure. By providing Feedback on the Effectiveness of Steps taken to control Charging, the FPMU helps ensure a Safe Working Environment for the Astronauts.

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Details

Version:2.2.8

NumericalData

ResourceID

spase://VSPO/NumericalData/ISS/FPMU/PT1S

ResourceHeader

ResourceName: ISS Floating Potential Measurement Unit (FPMU), Summary Parameter 1 s Data

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

Description

Acknowledgement: R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov.

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/Robert.M.Suggs
2.	PrincipalInvestigator	spase://SMWG/Person/Steven.L.Koontz
3.	MetadataContact	spase://SMWG/Person/Robert.E.McGuire
4.	MetadataContact	spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL

Name: Floating Potential Measurement Unit, FPMU, Home Page, SDL, USU

URL: http://www.sdl.usu.edu/programs/fpmu

Description

Floating Potential Measurement Unit, FPMU, Home Page, Space Dynamics Laboratory, Utah State University, per NASA Policy Directive 2200.1B, Section 1.a.5

AccessInformation

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

Availability: Online

AccessRights: Open

AccessURL

Name: FTP access to files at SPDF

URL: ftps://spdf.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu/

Description

Access to Data in CDF Format via ftp from SPDF

AccessURL

Name: HTTP access to files at SPDF

URL: https://spdf.gsfc.nasa.gov/pub/data/international_space_station_iss/sp_fpmu/

Description

Access to Data in CDF Format via http from SPDF

AccessURL

Name: CDAWeb

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

ProductKey: ISS_SP_FPMU

Description

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

Format: CDF

Encoding: None

Acknowledgement: R.M. Suggs, S.L. Koontz, NASA Johnson Space Center Contact Rob Suggs for support and use. Rob.Suggs@nasa.gov. Please acknowledge the data providers and CDAWeb when using these data.

ProcessingLevel: Calibrated

InstrumentIDs

spase://SMWG/Instrument/ISS/FPMU

MeasurementType: ThermalPlasma

TemporalDescription

TimeSpan

StartDate: 2010-01-27 00:00:00.000

StopDate: 2016-10-02 23:59:59.999

Cadence: PT1S

ObservedRegion: Earth.NearSurface.Ionosphere.FRegion

ObservedRegion: Earth.NearSurface.Thermosphere

Parameter #1

Name: Epoch Time

ParameterKey: Epoch

Description

Epoch Time, Default

Caveats: Time, dd-mm-yyyy hh:mm:ss.mms, This parameter exhibits an increasing monotonic progression.

Cadence: PT1S

Units: d

UnitsConversion: 86400>s^-1

RenderingHints

AxisLabel: Epoch

ScaleType: LinearScale

ValidMin: 01-Aug-2006 00:00:00.000

ValidMax: 31-Dec-2059 23:59:59.999

FillValue: 31-Dec-9999 23:59:59.999

Support

SupportQuantity: Temporal

Parameter #2

Name: ISS Longitude, GEO

Set: Time series defined by using: EPOCH

ParameterKey: Latitude

Description

International Space Station, ISS, Longitude, Geographic, GEO

Caveats: Geodetic Latitude

Cadence: PT1S

Units: °

UnitsConversion: 0.0174532925>rad

CoordinateSystem

CoordinateRepresentation: Spherical

CoordinateSystemName: GEO

RenderingHints

DisplayType: TimeSeries

AxisLabel: Latitude

ValueFormat: F7.3

ScaleType: LinearScale

ValidMin: -90.0

ValidMax: 90.0

FillValue: -1.0e+31

Support

Qualifier: DirectionAngle.AzimuthAngle

SupportQuantity: Positional

Parameter #3

Name: ISS Latitude, GEO

Set: Time series defined by using: EPOCH

ParameterKey: Longitude

Description

International Space Station, ISS, Latitude, Geographic, GEO

Caveats: Geodetic Longitude

Cadence: PT1S

Units: °

UnitsConversion: 0.0174532925>rad

CoordinateSystem

CoordinateRepresentation: Spherical

CoordinateSystemName: GEO

RenderingHints

DisplayType: TimeSeries

AxisLabel: Longitude

ValueFormat: F8.3

ScaleType: LinearScale

ValidMin: -180.0

ValidMax: 180.0

FillValue: -1.0e+31

Support

Qualifier: DirectionAngle.ElevationAngle

SupportQuantity: Positional

Parameter #4

Name: ISS Altitude

Set: Time series defined by using: EPOCH

ParameterKey: Altitude

Description

International Space Station, ISS, Altitude, Geographic, GEO

Caveats: Geodetic Altitude

Cadence: PT1S

Units: km

UnitsConversion: 1e3>m

RenderingHints

DisplayType: TimeSeries

AxisLabel: Altitude

ValueFormat: F8.3

ScaleType: LinearScale

ValidMin: 0.0

ValidMax: 500.0

FillValue: -1.0e+31

Support

Qualifier: Scalar

SupportQuantity: Other

Parameter #5

Name: Total Ion Density

Set: Time series defined by using: EPOCH

ParameterKey: N_i

Description

Total Ion Density, equal to the Electron Density

Caveats: Ion Density derived from the FPMU Wide Langmuir Probe. It can be used also for Electron Density assuming Quasi-Neutrality

Cadence: PT1S

Units: m^-3

RenderingHints

DisplayType: TimeSeries

AxisLabel: Ion Density

ValueFormat: E10.3

ValidMin: 1.0e+08

ValidMax: 1.0e+15

FillValue: -1.0e+31

Particle

ParticleType: Ion

Qualifier: Scalar

ParticleQuantity: NumberDensity

Parameter #6

Name: Electron Temperature

Set: Time series defined by using: EPOCH

ParameterKey: T_e

Description

Electron Temperature

Caveats: Electron temperature derived from the FPMU Narrow Langmuir Probe

Cadence: PT1S

Units: °K

RenderingHints

DisplayType: TimeSeries

AxisLabel: Electron Temperature

ValueFormat: F9.3

ScaleType: LinearScale

ValidMin: 0.0

ValidMax: 20000.0

FillValue: -1.0e+31

Particle

ParticleType: Electron

Qualifier: Scalar

ParticleQuantity: Temperature

Parameter #7

Name: ISS Pitch Angle

Set: Time series defined by using: EPOCH

ParameterKey: Angle

Description

International Space Station, ISS, Pitch Angle

Caveats: This ISS Pitch Attitude Information is necessary for Proper Derivation of the NLP Density. The NLP is a Cylindrical Langmuir Probe which is symmetric about the Roll and Yaw Axes.

Cadence: PT1S

Units: °

UnitsConversion: 0.0174532925>rad

RenderingHints

DisplayType: TimeSeries

AxisLabel: ISS Pitch Angle

ValueFormat: F8.3

ScaleType: LinearScale

ValidMin: 0.0

ValidMax: 360.0

FillValue: -1.0e+31

Support

Qualifier: DirectionAngle.AzimuthAngle

SupportQuantity: Positional

Parameter #8

Name: Solar Illumination, Percent

Set: Time series defined by using: EPOCH

ParameterKey: Sunlight

Description

Solar Illumination, Percent

Caveats: Percent Solar Illumination with no Correction for Atmospheric Refraction

Cadence: PT1S

RenderingHints

DisplayType: TimeSeries

AxisLabel: Sunlight

ValueFormat: F8.3

ScaleType: LinearScale

ValidMin: 0.0

ValidMax: 100.0

FillValue: -1.0e+31

Support

SupportQuantity: Other

Parameter #9

Name: Time Code Correction

Set: Time series defined by using: EPOCH

ParameterKey: TCC

Description

Time Code Correction

Caveats: Flag indicating that the Time Code was Correct in Original the File, 0, or that a Corrupt Time Code was corrected during Processing, 1

Cadence: PT1S

RenderingHints

DisplayType: TimeSeries

AxisLabel: Time Code Correction

ValueFormat: I2

ScaleType: LinearScale

ValidMin: 0

ValidMax: 1

FillValue: -9223372036854775808

Support

SupportQuantity: InstrumentMode

Parameter #10

Name: Processing Ground Station

Set: Time series defined by using: EPOCH

ParameterKey: GS

Description

Processing Ground Station

Caveats: Processing Ground Station could be JSC, MSFC, or HSV.

Cadence: PT1S

RenderingHints

AxisLabel: ground_station

ValueFormat: A5

Support

SupportQuantity: Other