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

2021-04-27 15:38:11Z

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.

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

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

Online

Open

CDF

None

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.

Online

Open

CSV

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.

PT1S

Epoch Time

Epoch

Epoch Time, Default

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

PT1S

d

86400>s^-1

01-Aug-2006 00:00:00.000

31-Dec-2059 23:59:59.999

31-Dec-9999 23:59:59.999

ISS Longitude, GEO

Time series defined by using: EPOCH

Latitude

International Space Station, ISS, Longitude, Geographic, GEO

Geodetic Latitude

PT1S

°

0.0174532925>rad

-90.0

90.0

-1.0e+31

ISS Latitude, GEO

Time series defined by using: EPOCH

Longitude

International Space Station, ISS, Latitude, Geographic, GEO

Geodetic Longitude

PT1S

°

0.0174532925>rad

-180.0

180.0

-1.0e+31

ISS Altitude

Time series defined by using: EPOCH

Altitude

International Space Station, ISS, Altitude, Geographic, GEO

Geodetic Altitude

PT1S

km

1e3>m

0.0

500.0

-1.0e+31

Total Ion Density

Time series defined by using: EPOCH

N_i

Total Ion Density, equal to the Electron Density

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

PT1S

m^-3

1.0e+08

1.0e+15

-1.0e+31

Electron Temperature

Time series defined by using: EPOCH

T_e

Electron Temperature

Electron temperature derived from the FPMU Narrow Langmuir Probe

PT1S

°K

0.0

20000.0

-1.0e+31

ISS Pitch Angle

Time series defined by using: EPOCH

Angle

International Space Station, ISS, Pitch Angle

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.

PT1S

°

0.0174532925>rad

0.0

360.0

-1.0e+31

Solar Illumination, Percent

Time series defined by using: EPOCH

Sunlight

Solar Illumination, Percent

Percent Solar Illumination with no Correction for Atmospheric Refraction

PT1S

0.0

100.0

-1.0e+31

Time Code Correction

Time series defined by using: EPOCH

TCC

Time Code Correction

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

PT1S

0

1

-9223372036854775808

Processing Ground Station

Time series defined by using: EPOCH

GS

Processing Ground Station

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

PT1S