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10 results for “Sounding Rocket”
Multi-Needle Langmuir probe (mNLP) data on the Investigation of Cusp Irregularities (ICI) 4 sounding rocket
<p>Documentation for file: ICI4_mNLP_01112021.mat</p> <p> </p> <ol> <li> <p><strong>The mNLP system on ICI-4</strong></p> </li> </ol> <p>The mNLP system on ICI-4 consisted of four cylindrical Langmuir probes with a diameter of 0.51 mm and a length of 25 mm [1,2]. The instruments allowed for current measurements at a sampling rate of 8680.5 Hz. The mNLP data included in the file are 1) the raw currents (‘I_mnlp’) in which spikes have been removed using a median filter over ten data points, and 2) the “filtered currents” (‘I_mnlp_filt’). For the latter, the spin of the payload and the three first harmonics were removed using a band-pass filter [1,2]. Additionally, components with frequencies larger than 1kHz were also removed.</p> <p> </p> <p> </p> <ol> <li> <p><strong>Variables:</strong></p> </li> </ol> <table> <tbody> <tr> <td> <p>Variable name</p> </td> <td> <p>Units</p> </td> <td> <p>Description/Comment</p> </td> </tr> <tr> <td> <p>time_noNans</p> </td> <td> <p>seconds</p> </td> <td> <p>Time of flight since launch.</p> </td> </tr> <tr> <td> <p>Alt</p> </td> <td> <p>Km</p> </td> <td> <p>Altitude of the payload.</p> </td> </tr> <tr> <td> <p>I_mnlp</p> </td> <td> <p>Ampere</p> </td> <td> <p>Currents obtained by the four cylindrical Langmuir probes. The 1<sup>st</sup>-4<sup>th</sup> columns contain the currents obtained by the probes with bias voltages of 3V, 4.5V, 6V, and 7.5 V, respectively. The data was filtered using a median filter over ten data points.</p> </td> </tr> <tr> <td> <p>I_mnlp_filt</p> </td> <td> <p>Ampere</p> </td> <td> <p>Same as I_mnlp with additional filtering of currents using band-pass filters [1,2].</p> </td> </tr> </tbody> </table> <p> </p> <p><strong>Acknowledgement</strong></p> <p>The mNLP experiment and the ICI-4 campaign were funded through the Research Council of Norway. Thanks to Lasse Clausen, Espen Trondsen, Jøran I. Moen, David Michael Bang-Hauge, Bjørn Lybekk, and the Mechanical Workshop at the University of Oslo, Norway. </p> <p><br> </p> <p>1. Bekkeng, T. A., K. S. Jacobsen, J. K. Bekkeng, A. Pedersen, T. Lindem, J.‐P. Lebreton, and J. I. Moen (2010), Design of a multi‐needle Langmuir probe system, Meas. Sci. Technol., 21, 085,903, doi:10.1088/0957‐0233/21/8/085903</p> <p>2. Jacobsen, K. S., Pedersen, A., Moen, J. I., & Bekkeng, T. A. (2010), A new Langmuir probe concept for rapid sampling of space plasma electron density. Measurement Science and Technology, 21(8), <a href="https://doi.org/10.1088/0957%E2%80%900233/21/8/085902">https://doi.org/10.1088/0957‐0233/21/8/085902</a></p>
EVEX rocket experiment: sounding rocket and C/NOFS satellite observations in equatorial regions of the ionosphere at sunset
<p>These data files support the JGR: Space Physics article by Pfaff, R. et al. (2022) entitled "Dual sounding rocket and C/NOFS satellite observations of DC electric fields and plasma density in the equatorial E and F region ionosphere at sunset".</p>
VISIONS-1 rocket experiment: Sounding rocket observations in the auroral zone at night following a substorm.
<p>These data files support the Frontiers in Astrophysics and Space Sciences article by Rowland, D. E., et al. (2022) entitled “Imaging Low-Energy Ion Outflow in the Auroral Zone”.</p>
APES electron precipitation data from the VISIONS-2 Sounding rocket flight
<p>This is a Matlab save file containting the data from the APES instrument from the VISIONS-2 sounding rocket flight. It contains the precipitating electron flux in both units of number flux and energy flux.</p>
Dynamic gene expression response to altered gravity in human myelomonocytic U937 cells [sounding rocket]
We investigated differentially regulated genes in human myelomonocytic U937 cells in 20s and 5min microgravity and in hypergravity and compared expression profiles to identify potential gravity-regulated genes and adaptation processes. Overall design: Human myelomonocytic U937 cells were exposed to altered gravity during a sounding rocket mission.
Dynamic gene expression response to altered gravity in human T cells (sounding rocket flight)
We investigated differentially regulated genes in human Jurkat T lymphocytic cells in 20s and 5min microgravity and in hypergravity and compared expression profiles to identify potential gravity-regulated genes and adaptation processes. This dataset is part of a series of three and the other two datasets are deposited in GLDS-172 and GLDS-189.
Sounding rocket payload systems for in-situ measurements of ionosphere-thermosphere structure at small spatial scales Project
<p> The methodology developed under this grant is primarily an effort to develop new sub-payload technologies and an inexpensive method of testing them. The three technical goals are: (1) to improve and test the existing spring sub-payload ejection system and rocket propelled ejection system, (2) to test the performance of ampule-deployed radar chaff (rather than TMA) to track high altitude winds, and (3) to develop and test sensor and telemetry packages to monitor the attitude stability and position of deployed sub-payloads.&nbsp; The proposed effort will also demonstrate very low cost, low altitude rockets as an inexpensive flight test of payloads prior to expensive sounding rocket deployments. The payloads tested on 5 to 7 low-cost rockets will be (1) foil chaff designed for radar tracking of mesospheric winds, (2) plasma instruments composed of GPS monitors, magnetometers, and accelerometers, and (3) android phones for the investigation of off-the-shell instrumentation and telemetry.&nbsp; Finally, a campaign of 2 to 4 sounding rocket deployments on &lsquo;as-available&rsquo; flights from Poker Flats will be used to test spring ejection without spin up, spring ejection with spin up for sub-payload attitude control, and rocket ejection</p>
Dynamic gene expression response to altered gravity in human myelomonocytic U937 cells [sounding rocket]
GEO Series GSE101299. Homo sapiens. 26 samples. Type: Expression profiling by array.
Dynamic gene expression response to altered gravity in human T cells (sounding rocket flight)
GEO Series GSE94255. Homo sapiens. 39 samples. Type: Expression profiling by array.
Dynamic gene expression response to altered gravity in human T cells (sounding rocket flight)
We investigated differentially regulated genes in human Jurkat T lymphocytic cells in 20s and 5min microgravity and in hypergravity and compared expression profiles to identify potential gravity-regulated genes and adaptation processes.
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