Parallel electric fields detected via conjugate electron echoes during the Echo 7 sounding rocket flight

1991 ◽  
Vol 96 (A7) ◽  
pp. 11475 ◽  
Author(s):  
R. J. Nemzek ◽  
J. R. Winckler
Keyword(s):  
Electric Fields ◽  
Sounding Rocket ◽  
Rocket Flight

Effects of gravity on processing heavy metal fluoride fibers

1997 ◽  
Vol 12 (9) ◽  
pp. 2223-2225 ◽  
Author(s):  
Dennis S. Tucker ◽  
Gary L. Workman ◽  
Guy A. Smith
Keyword(s):  
Heavy Metal ◽  
Crystallization Temperature ◽  
Normal Gravity ◽  
Crystal Nucleation ◽  
Sounding Rocket ◽  
Metal Fluoride ◽  
Reduced Gravity ◽  
Rocket Flight ◽  
Heavy Metal Fluoride

The effects of gravity on the crystal nucleation of heavy metal fluoride fibers have been studied in preliminary experiments utilizing NASA's KC-135 reduced gravity aircraft and a microgravity sounding rocket flight. Commercially produced fibers were heated to the crystallization temperature in normal and reduced gravity. The fibers processed in normal gravity showed complete crystallization while the fibers processed in reduced gravity did not show signs of crystallization.

Ghost-ray reduction and early results from the third FOXSI sounding rocket flight

2019 ◽  
Author(s):  
Sophie Musset ◽  
Juan Camilo Buitrago-Casas ◽  
Lindsay Glesener ◽  
Stephen Bongiorno ◽  
Sasha Courtade ◽  
...  
Keyword(s):  
Sounding Rocket ◽  
The Third ◽  
Rocket Flight ◽  
Early Results

scholarly journals Comparison of E-region electric fields observed with a sounding rocket and a Doppler radar in the Seek Campaign

1998 ◽  
Vol 25 (11) ◽  
pp. 1773-1776 ◽  
Author(s):  
Mamoru Yamamoto ◽  
Tetsuya Itsuki ◽  
Takeshi Kishimoto ◽  
Roland T. Tsunoda ◽  
Robert F. Pfaff ◽  
...  
Keyword(s):  
Electric Fields ◽  
Doppler Radar ◽  
Sounding Rocket ◽  
E Region

Auroral electrodynamics---investigation by a dual sounding rocket experiment

2020 ◽  
Author(s):  
Hassanali Akbari ◽  
Robert Pfaff ◽  
Keyword(s):  
Electric Fields ◽  
Sounding Rocket ◽  
Sounding Rockets ◽  
Neutral Winds ◽  
Incoherent Scatter ◽  
Ac Electric Fields ◽  
Numerical Studies ◽  
Rocket Experiment ◽  
N Wave

<p>We present results from a 2017 sounding rocket experiment in which two NASA sounding rockets were simultaneously launched into the auroral ionosphere. The rockets included comprehensive instrumentation to measure DC and AC electric fields, magnetic fields, energetic particles, plasma density, and neutral winds, among other parameters, and achieved apogees of 190 and 330 km. This unprecedented collection of in-situ measurements obtained at two altitudes over an auroral arc, along with conjugate ground-based measurements by the Poker Flat incoherent scatter radar and all-sky cameras, enable us to investigate the behavior of an aurora arc and its associated electrodynamics. A prominent feature of our observations is the presence of localized, large-amplitude Alfvén wave structures observed in both the electric field and magnetometers at altitudes as low as 190 km in the vicinity of up- and down-ward current regions. The observations are discussed in the context of ionospheric feedback instability. The results are compared to predictions of previously published numerical studies and other sounding rocket observations.</p>

Glow discharge excited at low to high radio frequencies around active dipoles in the ionosphere

2020 ◽  
Author(s):  
H.G. James ◽  
Andrew W. Yau
Keyword(s):  
Glow Discharge ◽  
Radio Frequency ◽  
Electric Fields ◽  
Ionospheric Plasma ◽  
Optical Emission ◽  
Video Camera ◽  
Sounding Rocket ◽  
Dipole Antennas ◽  
Radio Frequency Glow Discharge ◽  
Frequency Dependences

Abstract: We present the first space-borne observation of optical emissions of both neutral and ionized argon atoms resulting from a radio-frequency glow discharge (RF-GD) from a sounding rocket payload. The Observations of Electric-field Distributions in the Ionospheric Plasma - a Unique Strategy-C (OEDIPUS-C) payload was designed to separate into two sub-payloads on its up-leg. This separation permitted a number of two-point measurements, including those on radio wave propagation from the active dipole antennas on the upper sub-payload to the synchronized receiving dipoles on the lower sub-payload. A white-light video camera on the lower sub-payload recorded strong luminosity around the active dipoles during the first 15 s after sub-payload separation, when argon gas jets were providing propulsion to separate the two sub-payloads. Parts of the ejected argon appeared as a glowing volume where the large radio-frequency (RF) fields from the two active dipoles excited the optical emission, as the sub-payload separation increased from 2 to 55 m. The shape and intensity of the luminosity were well repeated as a function of the swept frequency (0.025 - 8.000 MHz), but their frequency dependences were distinctly different from those of sounder accelerated electrons measured onboard, and deduced to result from the nonlinearity of the glow discharge. The observation is to our knowledge the first of its kind, and is interpreted in terms of a RF-GD energized by the strong near electric fields of the transmitting dipoles.

Sounding Rocket Flight Experiment for Demonstratin...

2005 ◽  
Author(s):  
Shinichi Nakasuka ◽  
Tsukasa Funane ◽  
Yuya Nakamura ◽  
Yuta Nojiri ◽  
Hironori Sahara ◽  
...  
Keyword(s):  
Sounding Rocket ◽  
Flight Experiment ◽  
Rocket Flight

Design of a Sounding Rocket Flight Experiment to Validate Transonic Drag Minimized Waveriders

2019 ◽  
Author(s):  
Patrick E. Rodi ◽  
Henry Stoldt ◽  
Colin Hill ◽  
Craig T. Johansen
Keyword(s):  
Sounding Rocket ◽  
Flight Experiment ◽  
Rocket Flight

Consort 1 sounding rocket flight

1989 ◽  
Vol 26 (5) ◽  
pp. 343-351 ◽  
Author(s):  
Francis C. Wessling ◽  
George W. Maybee
Keyword(s):  
Sounding Rocket ◽  
Rocket Flight
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