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Showing 1 to 20 of 31 for “"Sounding Rocket"”.
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Contaminated Sweeping Langmuir Probes on Sounding Rocket Platforms
… are one of the most commonly used probes on sounding rocket missions. They offer measurements of plasma density, electron temperature, and both relative and absolute payload charging. One of the major implementation challenges, however, is contamination on the surface of the probe such that …
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Sounding rocket measurements of thermal electrons in active nightside aurora
<p>On January 14th 2002 the SIERRA sounding rocket was launched from Poker Flat Research Range, Alaska into active substorm expansion aurora and reached 735 km. For the first time, direct measurements of the cold ionospheric population in darkness were made by the UNH Thermal Electron Detector …
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Kinetic Modeling of Ionospheric Outflows Observed by the VISIONS-1 Sounding Rocket
… via Neutral atom imaging during a Substorm) sounding rocket was launched on Feb. 7, 2013 at 8:21 UTC from Poker Flat, Alaska, into an auroral substorm with the objective of identifying the drivers and dynamics of nightside ion outflow at altitudes where it is initiated, below 1000 km. …
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Sounding Rocket Redesign And Optimization For Payload Expansion And In Flight Telemetry Transmittal
Due to renewed interest in the sub orbital rocket program of the Florida Space Authority and a surplus of Super Loki Sounding Rockets, an effort to improve the usefulness of this surplus is herein undertaken. Currently, the capacity of the payload compartment in the upper stage of the Super Loki …
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Low Cost Magnetometer Calibration and Distributed Simultaneous Multipoint Ionospheric Measurements from a Sounding Rocket Platform
… measurements in the ionosphere, either onboard sounding rockets or on CubeSats. The Space and Atmospheric Instrumentation Laboratory (SAIL) at Embry-Riddle Aeronautical University has launched a multitude of sounding rockets in recent history: one night-time mid-latitude rocket from Wallops …
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Spectral measurements of hydrogen Lyman-alpha in the atmospheres of Venus and Jupiter using a sounding rocket and the Hubble Space Telescope
… a telescope with a spectrograph launched on a sounding rocket scheduled for launch in early 2012 from White Sands Missile Range. On Jupiter, the Lyman-alpha emission was observed to better characterize an anomalously bright region near the equator called the Lyman-alpha Bulge. Images and …
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Planning and Simulating Observations for a Sounding Rocket Experiment to Measure Polar Night Nitric Oxide in the Lower Thermosphere by Stellar Occultation
… the error in the retrieval technique for a rocket experiment to measure lower thermospheric Nitric Oxide in the polar night using stellar occultation technique. These objectives are accomplished by planning the geometry, determining the requirements for observations, window for launch and …
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Integrated vehicle and mission design using convex optimization
… are implemented and evaluated for a sounding rocket design problem and a hydrogen aircraft design problem. The methodology proves successful in designing the sounding rocket while taking into account the optimal trajectory and control strategy and extended to a multi-mission design …
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Guidance and control of sounding rockets
… the design, fabrication and testing of a sounding rocket flight computer for the South African Astronomical Observatory (SAAO). Sounding rockets carry instruments with which to take measurements in the Earth’s atmosphere in sub-orbital flight. The South African Astronomical Observatory …
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Design, Development, and Calibration of an Electric Field Probe for Use on Sounding Rockets
… research being conducted through high-altitude sounding rockets. These rockets allow for in-situ measurements of the physical parameters of the upper atmosphere which in turn helps in the answering of important questions in space science. In order to quantify the force a charged particle in …
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X-ray searches for decaying sterile neutrinos with the Micro-X and XQC sounding rockets
… data from the X-ray Quantum Calorimeter (XQC) sounding rocket.
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Imaging X-ray spectroscopy with micro-X and Chandra
… half. I detail the commissioning of this novel sounding rocket payload, which uses a focal plane of micro-calorimeters to achieve high spectral resolution in each pixel. The flight hardware is in a final state of testing and integration before the launch, which is anticipated in 2014.
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Developing Fixed-Bias Langmuir Probes for Multi-Point Constellation Deployments
… in terrestrial and interplanetary ionospheric sounding applications. When deployed aboard rocket and satellite platforms, these probes yield high-cadence, in-situ measurements of key plasma parameters such as electron density, ion density, and electron temperature. Furthermore, the efficacy of …
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Optimal control problems with switching points
… These are altitude maximization for a sounding rocket (Goddard Problem) in presence of a dynamic pressure limit, and range maximization for a supersonic aircraft flying in the vertical plane, also in presence of a dynamic pressure limit. In the second problem singular control appears …
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Impacts of Anisotropy, Wave Heating, and Neutral Winds on High-Latitude Ionospheric Dynamics
… model GEMINI, are constrained by the MICA sounding rocket campaign data and respective outputs compared to analyze the impacts of anisotropy on low altitude ionospheric dynamics, specifically density cavity formation and related upflow.</p> <p>Next, GEMINI-TIA is used in a parametric study to …
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Hybrid Rocket Motor Scaling Process
<p>Hybrid rocket propulsion technology shows promise for the next generation of sounding rockets and small launch vehicles. This paper seeks to provide details on the process of developing hybrid propulsion systems to the academic and amateur rocket communities to assist in future research and …
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