Open Access
Further analysis of the results from a series of tethered rocket experiments
TLDR
The data obtained in the most recent Japan-US tether rocket experiment CHARGE 2 have been further analyzed in this paper, where the interaction of the moving tether system across the geomagnetic field with the ionospheric plasma can be explained by a simple model of the current through a plasma.Abstract:
The data obtained in the most recent Japan-US tether rocket experiment CHARGE 2 have been further analyzed. The interaction of the moving tether system across the geomagnetic field with the ionospheric plasma can be explained by a simple model of the current through a plasma. The response of the tether system when a high voltage is applied is studied and 500 volts could be applied without any appreciable discharge. The detected signal of the wave excited by an application of high voltage between the mother and daughter rocket and by a pulse modulated electron beam is also studied.read more
Citations
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Review on Dynamics and Control of Nonelectrodynamic Tethered Satellite Systems
TL;DR: In this article, the distance between mass centers of satellites m1 and m2, tether length if m1 � m2,m L 0 = initial tether length, m M = total system mass, kg mi = mass of satellite i,k g mt = tether mass, k ri = position vector of mass mi from the system center of mass, m ˆ r1 = r1/a β, η = relative in-plane and out-of-plane swing angles between m 1 and m 2, respectively, deg βmax,η
Further laboratory measurements of the beam-plasma discharge. [for aerospace technology application]
TL;DR: In this article, the beam-plasma discharge (BPD) produced when an energetic electron beam traverses an initially neutral gas is presented, and the experimental data indicate that the critical beam current Ic at energy V, magnetic field B, and system length L required for ignition obeys the empirical relationship Ic ∝ V3/2/B0.7 PL at pressures P < 2 × 10−5 torr.
Journal ArticleDOI
Advances in dynamics and control of tethered satellite systems
TL;DR: The historic background and recent hot topics for the space tethers are presented, and the dynamics and control of TSSs are introduced in a progressive manner, from basic operating principles to the state-of-the-art achievements.
Journal ArticleDOI
Recent results from studies of electron beam phenomena in space plasmas
Torsten Neubert,Peter M. Banks +1 more
TL;DR: In this article, the authors examined selected results from experiments, performed in 1980s, involving the ejection of beams of electrons from spacecraft, and special attention was given to the basic processes associated with the spacecraft charging, passive current collection, beam-atmosphere interactions, beamplasma interactions, and neutral gas emission.
References
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Journal ArticleDOI
Potential buildup on an electron-emitting ionospheric satellite
Lee W. Parker,Brian L. Murphy +1 more
TL;DR: Potential buildup on electron emitting ionospheric satellite, noting limitation on current emission by geomagnetic field is discussed in this paper, where it is shown that the current emission is limited.
Journal ArticleDOI
Observations of radiation from an electron beam artificially injected into the ionosphere
D. G. Cartwright,Paul J. Kellogg +1 more
TL;DR: The Electron Echo 1 experiment as discussed by the authors was the first experiment in which an electron accelerator was carried to a height of 350 km in the ionosphere from Wallops Island, Virginia, on an Aerobee 350 sounding rocket, and it injected into the earth's magnetic field over 3000 16-ms pulses of electrons with 40-keV energy and a current of 70 mA at pitch angles between 70 and 110 deg.
Further laboratory measurements of the beam-plasma discharge. [for aerospace technology application]
TL;DR: In this article, the beam-plasma discharge (BPD) produced when an energetic electron beam traverses an initially neutral gas is presented, and the experimental data indicate that the critical beam current Ic at energy V, magnetic field B, and system length L required for ignition obeys the empirical relationship Ic ∝ V3/2/B0.7 PL at pressures P < 2 × 10−5 torr.
Journal ArticleDOI
Current-voltage characteristics of an electron- emitting satellite in the ionosphere.
TL;DR: In this article, the saturation current of a sphere at a large positive potential ϕ can draw from a surrounding collisionless plasma in a magnetic field is investigated, assuming that the ions are excluded from the region of high potential surrounding the sphere, thus presenting an increased cross-sectional area through which electrons can be collected from the plasma along magnetic field lines.
A tether tension control law for tethered subsatellites deployed along local vertical
TL;DR: In this article, a control law is described which actively damps the swinging motion by employing a reel or other mechanism, to apply appropriate tension as a function of tetherline length, rate of change of length, and desired length.