Electrical Charging of the International Space Station

Mikatarian, Ron; Barsamian, Hagop; Alred, John; Kern, John W.; Minow, Joseph I.; Koontz, Stephen R.

doi:10.2514/6.2003-1079

Cited by 9 publications

(8 citation statements)

References 2 publications

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“…A specialized version of EWB called the Plasma Interactions Model (PIM) was jointly developed by SAIC and Boeing that agreed in all essential aspects with the FPP observations. The original PIM code included electron current collection models for the solar arrays 16 as well as collection on solar arrays, masts, and vehicle structure with a distribution of potential due to vxB•l 34,35,36,38 (see below).…”

Section: Application To "Normal' Chargingmentioning

confidence: 99%

A Theory for Rapid Charging Events on the International Space Station

Ferguson

Craven

Minow

et al. 2009

1st AIAA Atmospheric and Space Environments Conference

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Section: Application To "Normal' Chargingmentioning

confidence: 99%

A Theory for Rapid Charging Events on the International Space Station

Ferguson

Craven

Minow

et al. 2009

1st AIAA Atmospheric and Space Environments Conference

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“…Development of the PIM is the result of a joint collaboration between The Boeing Company and SAIC, under subcontract to The Boeing Company [1][2][3]8 . Figure 1 gives a schematic of the PIM.…”

Section: Overview Of Pimmentioning

confidence: 99%

“…Previous studies and existing PCU data indicate that maximum charging occurs shortly after eclipse exit [3][4][5] . For ISS, eclipse exit conditions are defined for solar zenith angles (SZA) between 100 and 110 degrees at ISS altitudes.…”

Section: Ionospheric Plasma Properties and Variabilitymentioning

confidence: 99%

“…Studies showed that during solar minimum, the F2 layer plasma will generally have lower densities and lower temperatures than during solar maximum 5 . However, because the AE-C data set was statistically much smaller than DE-2 and that the AE-C showed similar charging probabilities to DE-2, DE-2 was (and is) the main data source for ISS plasma charging studies to date.…”

Section: A Satellite Based Plasma Datamentioning

confidence: 99%

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Analysis of ISS Plasma Interaction

Reddell

Alred

Krämer

et al. 2006

44th AIAA Aerospace Sciences Meeting and Exhibit

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“…Examples include ram-wake effects, hypergolic thruster plume impingement, materials out-gassing, venting and dumping of fluids, and specific photovoltaic (PV) power system interactions with the ionospheric plasma (7)(8)(9)(10)(11). Vehicle size (L) and velocity (V), combined with the magnitude and direction of the geomagnetic field (B) produce operationally significant magnetic induction voltages (VxB .…”

mentioning

confidence: 99%

Spacecraft Materials in the Space Flight Environment: International Space Station—May 2002 to May 2008

Golden¹,

Koontz²,

Christiansen³

et al. 2009

AIP Conference Proceedings

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The performance of ISS spacecraft materials and systems on prolonged exposure to the low-Earth orbit (LEO) space flight is reported in this paper. In-flight data, flight crew observations, and the results of ground-based test and analysis directly supporting programmatic and operational decision-making are presented. The space flight environments definitions (both natural and induced) used for ISS design, material selection, and verification testing are shown, in most cases, to be more severe than the actual flight environment accounting for the outstanding performance of ISS as a long mission duration spacecraft. No significant ISS material or system failures have been attributed to spacecraft-environments interactions. Nonetheless, ISS materials and systems performance data is contributing to our understanding of spacecraft material interactions in the spaceflight environment so as to reduce cost and risk for future spaceflight projects and programs.Orbital inclination (51.6 o ) and altitude (nominally near 360 km) determine the set of natural environment factors affecting the functional life of materials and systems on ISS. ISS operates in an electrically conducting environment (the F2 region of Earth's ionosphere) with well-defined fluxes of atomic oxygen, other charged and neutral ionospheric plasma species, solar UV, VUV, and x-ray radiation as well as galactic cosmic rays, trapped radiation, and solar cosmic rays (1-4). The LEO micrometeoroid and orbital debris environment is an especially important determinant of spacecraft design and operations (5, 6).The magnitude of several environmental factors varies dramatically with latitude and longitude as ISS orbits the Earth (1-4). The high latitude orbital environment also exposes ISS to higher fluences of trapped energetic electrons, auroral electrons, solar cosmic rays, and galactic cosmic rays (1-4) than would be the case in lower inclination orbits, largely as a result of the overall shape and magnitude of the geomagnetic field (1-4). As a result, ISS exposure to many environmental factors can vary dramatically along a particular orbital ground track, and from one ground track to the next, during any 24-hour period.The induced environment results from ISS interactions with the natural environment as well as environmental factors produced by ISS itself and visiting vehicles fleet. Examples include ram-wake effects, hypergolic thruster plume impingement, materials out-gassing, venting and dumping of fluids, and specific photovoltaic (PV) power system interactions with the ionospheric plasma (7-11). Vehicle size (L) and velocity (V), combined with the magnitude and direction of the geomagnetic field (B) produce operationally significant magnetic induction voltages (VxB . L) in ISS conducting structure during flight through high latitudes (>+ 45 o ) during each orbit (7-11). Finally, an induced ionizing radiation environment is produced by cosmic ray interaction with the relatively thick ISS structure and shielding materials (12)(13)(14).Characterizin...

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Electrical Charging of the International Space Station

Cited by 9 publications

References 2 publications

A Theory for Rapid Charging Events on the International Space Station

A Theory for Rapid Charging Events on the International Space Station

Analysis of ISS Plasma Interaction

Spacecraft Materials in the Space Flight Environment: International Space Station—May 2002 to May 2008

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