Questions tagged [spacecraft-charging]

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Why do satellites have capacitance? [closed]

In some comments on this forum I read that satellites have capacitance of some nF or pF, What is this about? How can I calculate it roughly?
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Do ISS crew worry about the ionosphere? Have hazards to EVAs or surface arcing and functional anomalies ever happened due to ionospheric charing?

Comments below this answer tell us that the International Space Station always remained in Earth's atmosphere. It orbits in the thermosphere and simultaneously the ionosphere. This answer to How do ...
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How do spacecraft measure their own charge?

The discussion in the NOAA legacy page Space Weather Prediction Center Topic Paper: Satellites and Space Weather (found here) lists: Types of Spacecraft Anomalies Spacecraft anomalies are ...
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Thrust of ion thruster when spacecraft is charged

I read in many articles and books that the thrust of an ion thruster is equal to $$T = \sqrt{\frac{2M}{e}} I_b \sqrt{V_b} \ \ \text{[newtons]}$$ screenshot where $V_b$ is the acceleration potential, ...
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How did three 1.2 meter spheres and a Xe+ plasma contactor keep the Shuttle “grounded”? What did they look like?

Statement of relevance This answer to Highest DC voltage ever intentionally produced in space? mentions particle beam experiments done from the Space Shuttle while it flew through Earth's atmosphere ...
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What is the maximum voltage of an Electric Sail?

Suppose we have an electric sail in LEO, how could one calculate the maximum voltage that could be sustained? It can't be infinite, there must be some limiting factors. Is there any ionization voltage ...
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Is there any possible reason to direct the electron gun specifically towards the ion trail behind an ion thruster?

This answer to Neutralization of ions in the ion thruster quotes the introduction to Wikipedia's Ion thruster: Temporarily stored electrons are finally reinjected by a neutralizer in the cloud of ...
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382 views

How is charge dissipated in ion-propulsed spacecraft?

I understand that an ion-thruster will continuously charge its spacecraft with a charge opposite of the one of the ions it thrusts. Over a long journey this charge would be considerable. What would ...
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How is Parker Solar Probe so robust against coronal mass ejections?

Phys.org's Revealing the physics of the Sun with Parker Solar Probe quotes "Tim Horbury, a lead researcher on Parker Solar Probe's FIELDS instruments based at Imperial College London" as saying: "...
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Is a spacecraft able to measure it's current electric charge in some way? [duplicate]

In this question, there is discussion of charge buildup on a spacecraft. Is it possible for a spacecraft to measure its own charge?