Hostname: page-component-6bf8c574d5-b4m5d Total loading time: 0 Render date: 2025-02-22T04:16:46.947Z Has data issue: false hasContentIssue false
  • English
  • Français

Proposal for an Interplanetary Mission to Sound the Outer Regions of the Solar Corona

Published online by Cambridge University Press:  14 August 2015

H. Porsche ,
H. Volland ,
K. Bird  and
P. Edenhofer
H. Porsche
Affiliation:
1 Deutsche Forschungs- und Versuchsanstalt für Luft- & Raumfahrt e.V. Forschungszentrum Oberpfaffenhofen, D 8031 Wessling
H. Volland
Affiliation:
1 Deutsche Forschungs- und Versuchsanstalt für Luft- & Raumfahrt e.V. Forschungszentrum Oberpfaffenhofen, D 8031 Wessling
K. Bird
Affiliation:
1 Deutsche Forschungs- und Versuchsanstalt für Luft- & Raumfahrt e.V. Forschungszentrum Oberpfaffenhofen, D 8031 Wessling
P. Edenhofer
Affiliation:
1 Deutsche Forschungs- und Versuchsanstalt für Luft- & Raumfahrt e.V. Forschungszentrum Oberpfaffenhofen, D 8031 Wessling

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The mission of HELIOS had been started in order to investigate in situ the innermost regions of the interplanetary space. The two spacecraft achieved a perihelion of about 0.3 AU solar distance. Fig. 1 is a sketch of the two orbits. The orbital periods are 190 resp. 186 d.

Type
Part VII. Future Directions
Information
Symposium - International Astronomical Union , Volume 91: Solar and Interplanetary Dynamics , 1980 , pp. 541 - 545
Copyright
Copyright © Reidel 1980 

References

1 Volland, H., Bird, M.K., Levy, G.S., Stelzried, T.C. and Seidel, B.L. HELIOS 1 Faraday Rotation Experiment: Results and Interpretations of the Solar Occultation in 1975; J.Geophys. 42, 659, 1977 Google Scholar
2 Edenhofer, P., Esposito, P.B., Hansen, R.T., Lüneburg, E., Martin, W.L. and Zygielbaum, A.I., Time Delay Occultation of Data of the HELIOS Spacecrafts and Preliminary Analysis for Probing the Solar Corona; J. Geophys. 42, 673, 1977 Google Scholar
3 Edenhofer, P., Bird, M.K. and Volland, H., Comparison of Time Delay and Faraday Rotation Measurements from HELIOS Spacecraft; Kleinheubacher Ber. 21, 305–312, 1977 and H. Süss, Privat Communication Google Scholar
4 Woo, R., Radial Dependence of Solar Wind Properties Deduced from HELIOS 1 and 2 and PIONEER 10/11 Radio Scattering Observations, Astroph. J. 219, 727, 1978 Google Scholar
5 Lüneburg, E. and Esposito, P.B., A Method for the Evaluation of Solar Coronal Plasma Propagation Speeds by Radio Occultation of Space Probes; Nat. Radio Sci. Meeting, U of Washington, Seattle, Wash. 18 - 22 June 1979, p. 284 and JPL - Engineering Memo 315 - 90, 1979 Google Scholar