Search: onr:"swepub:oai:research.chalmers.se:76024489-56c2-4d46-a26c-2d621c7b6915" >
A monitoring campai...
A monitoring campaign (2013-2020) of ESA's Mars Express to study interplanetary plasma scintillation
-
- Kummamuru, P. (author)
- University of Tasmania
-
- Calves, G. M. (author)
- University of Tasmania
-
- Cimo, G. (author)
- Joint Institute for VLBI in Europe (JIVE)
-
show more...
-
- Pogrebenko, Sergei (author)
- Joint Institute for VLBI in Europe (JIVE)
-
Bahamon, T. M. B. (author)
-
- Duev, Dmitry (author)
- California Institute of Technology (Caltech)
-
- Md Said, M. D. (author)
- Joint Institute for VLBI in Europe (JIVE)
-
- Edwards, J. (author)
- University of Tasmania
-
- Ma, M. (author)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
-
- Quick, J. (author)
- Hartebeeshoek Radio Astronomy Observatory
-
- Neidhardt, Alexander (author)
- Technische Universität München (TUM),Technical University of Munich (TUM)
-
- Vicente, P. de (author)
- Observatorio de Yebes (IGN),Yebes Observatory
-
- Haas, Rüdiger, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Kallunki, J. (author)
- Aalto-Yliopisto,Aalto University
-
- Maccaferri, G. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Colucci, G. (author)
- Agenzia Spaziale Italiana
-
Yang, W. J. (author)
-
- Hao, L. F. (author)
- Yunnan Observatories
-
- Weston, S. (author)
- Auckland University of Technology
-
- Kharinov, M. A. (author)
- Russian Academy of Sciences
-
- Mikhailov, A. G. (author)
- Russian Academy of Sciences
-
- Jung, T. (author)
- Korea Astronomy and Space Science Institute
-
show less...
-
(creator_code:org_t)
- 2023
- 2023
- English.
-
In: Publications Astronomical Society of Australia. - 1448-6083 .- 1323-3580. ; 40
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- The radio signal transmitted by the Mars Express (MEX) spacecraft was observed regularly between the years 2013-2020 at X-band (8.42 GHz) using the European Very Long Baseline Interferometry (EVN) network and University of Tasmania's telescopes. We present a method to describe the solar wind parameters by quantifying the effects of plasma on our radio signal. In doing so, we identify all the uncompensated effects on the radio signal and see which coronal processes drive them. From a technical standpoint, quantifying the effect of the plasma on the radio signal helps phase referencing for precision spacecraft tracking. The phase fluctuation of the signal was determined for Mars' orbit for solar elongation angles from 0 to 180 deg. The calculated phase residuals allow determination of the phase power spectrum. The total electron content of the solar plasma along the line of sight is calculated by removing effects from mechanical and ionospheric noises. The spectral index was determined as which is in agreement with Kolmogorov's turbulence. The theoretical models are consistent with observations at lower solar elongations however at higher solar elongation ($ ]]>160 deg) we see the observed values to be higher. This can be caused when the uplink and downlink signals are positively correlated as a result of passing through identical plasma sheets.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- interferometry
- spacecraft tracking
- space weather
- solar wind
- plasma
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Kummamuru, P.
-
Calves, G. M.
-
Cimo, G.
-
Pogrebenko, Serg ...
-
Bahamon, T. M. B ...
-
Duev, Dmitry
-
show more...
-
Md Said, M. D.
-
Edwards, J.
-
Ma, M.
-
Quick, J.
-
Neidhardt, Alexa ...
-
Vicente, P. de
-
Haas, Rüdiger, 1 ...
-
Kallunki, J.
-
Maccaferri, G.
-
Colucci, G.
-
Yang, W. J.
-
Hao, L. F.
-
Weston, S.
-
Kharinov, M. A.
-
Mikhailov, A. G.
-
Jung, T.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Electrical Engin ...
-
and Signal Processin ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Fusion Plasma an ...
- Articles in the publication
-
Publications Ast ...
- By the university
-
Chalmers University of Technology