Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh11b1626s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH11B-1626
Astronomy and Astrophysics
Astrophysics
[0609] Electromagnetics / Antennas, [0694] Electromagnetics / Instruments And Techniques, [7534] Solar Physics, Astrophysics, And Astronomy / Radio Emissions, [7594] Solar Physics, Astrophysics, And Astronomy / Instruments And Techniques
Scientific paper
We report our analyses of the Radio and Plasma Wave Analyzer (RPW ANT) onboard the Solar Orbiter spacecraft with a focus on the high-frequency electric antennas. The aim of the Solar Orbiter mission is to determine in-situ properties and dynamics of solarwind plasma, electric and magnetic fields in the near-Sun heliosphere. The mission is planned to be launched in 2017 with a spacecraft trajectory of, for the first time, partial co-rotation with the Sun, providing a full suite of in-situ and remote sensing instruments from as close as 0.25 AU. The RPW ANT high-frequency electric sensors, consist of three cylindrical antennas mounted on appendant booms extruded from the central body of the spacecraft. Due to the parasitic effects of the conducting spacecraft body and solar panels the true antenna properties (effective axes and length; capacitances) do not coincide with their physical representations. In order to analyze the antenna system we applied a numerical method. The current distribution on the spacecraft body and the effective length vector was calculated, by solving the underlying field equations using electromagnetic codes. In the applied method the spacecraft is modelled as a patch-grid. The numerical analysis of the reception properties, including several placement options of these antennas, is presented. Since the Solar Orbiter spacecraft body and antennas are not yet finally specified, the results can be used to evaluate the performance of the proposed sensors. In particular, goniopolarimetry techniques like polarization analysis, direction finding and ray tracing depend crucially on the effective axes and the therefore the corresponding data analysis significantly improves. Software model (patch-grid) of the Solar Orbiter spacecraft
Macher Wolfgang
Maksimovic Milan
Oswald T. H.
Plettemeier Dirk
Rucker Helmet O.
No associations
LandOfFree
First calibration results and antenna placement studies of the RPW ANT instrument on Solar Orbiter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with First calibration results and antenna placement studies of the RPW ANT instrument on Solar Orbiter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First calibration results and antenna placement studies of the RPW ANT instrument on Solar Orbiter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1506516