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The probe is the spherical part, 50 mm in diameter and made from titanium with a surface coating of titanium nitride. A Langmuir probe is a device used to determine the electron temperature, electron density, and electric potential of a plasma. It works by inserting one or more electrodes into a plasma, with a constant or time-varying electric ...
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions.
Solar System space probes operational as of November 2024. This is a list of active space probes which have escaped Earth orbit. It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points (for these, see List of objects at Lagrangian points). A craft is deemed "active" if it is still able to ...
A probe equipped with a Direct Fusion Drive (DFD) propulsion system, planned to orbit and land on Pluto. [143] 2 Shensuo: IHP-1: May 2024 N/A CNSA: Flyby Planned A proposed probe in the Shensuo program (Chinese: 神梭), planned to launch alongside IHP-2 and the proposed IHP-3. IHP-1 will use gravity assists from Earth in October 2025 and ...
SWEAP consists of the Solar Probe Cup (SPC), a Faraday cup that faces the Sun and is designed to measure mostly protons and alphas with the occasional measurement of electrons in the space environment near the Sun: the Solar Probe Analyzers (SPAN-A and SPAN-B); [10] [11] and the SWEAP electronics module (SWEM).
The onboard controllers were capable of handling 256 commands. The mass memory could store 500 kb, (this was a very large memory for space probes of the time), and was mainly used when the probes were in superior conjunction relative to the Earth (i.e. the Sun comes between the Earth and the spacecraft). A conjunction could last up to 65 days.
An enduring mystique surrounds the Voyager 1 and 2 probes. Launched two weeks apart in 1977, the twin probes changed the way we see our solar system, sending back stunningly detailed views of ...
This is known as the single-probe method. (b) The surface areas are very small in comparison with the dimensions of the vessel containing the plasma and approximately equal to each other. This is the double-probe method. Conventional Langmuir probe theory assumes collisionless movement of charge carriers in the space charge sheath around the probe.