Analysis of an Interplanetary Coronal Mass Ejection by a Spacecraft Radio Signal: A Case Study

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • G. Molera calvés
  • Esa Kallio

  • G. Cimo
  • J. Quick
  • D. A. Duev
  • T. Bocanegra bahamón
  • M. Nickola
  • M. A. Kharinov
  • A. G. Mikhailov

Research units

  • National Land Survey of Finland
  • Hartebeesthoek Radio Astronomy Observatory
  • California Institute of Technology
  • CAS - Shanghai Astronomical Observatory
  • Russian Academy of Sciences
  • Joint Institute for VLBI in Europe
  • Netherlands Institute for Radio Astronomy (ASTRON)
  • Delft University of Technology

Abstract

Tracking radio communication signals from planetary spacecraft with ground-based telescopes offers the possibility to study the electron density and the interplanetary scintillation of the solar wind. Observations of the telemetry link of planetary spacecraft have been conducted regularly with ground antennae from the European Very Long Baseline Interferometry Network, aiming to study the propagation of radio signals in the solar wind at different solar elongations and distances from the Sun. We have analyzed the Mars Express spacecraft radio signal phase fluctuations while, based on a 3-D heliosphere plasma simulation, an interplanetary coronal mass ejection (ICME) crossed the radio path during one of our observations on 6 April 2015. Our measurements showed that the phase scintillation indices increased by a factor of 4 during the passage of the ICME. The method presented here confirms that the phase scintillation technique based on spacecraft signals provides information of the properties and propagation of the ICMEs in the heliosphere.

Details

Original languageEnglish
Pages (from-to)1523-1534
Number of pages12
JournalSpace Weather
Volume15
Issue number11
Publication statusPublished - Nov 2017
MoE publication typeA1 Journal article-refereed

    Research areas

  • Doppler measurement, ICME, Interplanetary scintillation, Solar wind, Spacecraft tracking, VLBI

ID: 16403480