Considerations of a Solar Mass Ejection Imager in a low-earth orbit
We are designing an imager capable of observing the Thomson scattering signal from transient, diffuse features in the heliosphere. The imager is expected to trace these features, which include coronal mass ejections, co-rotating structures and shock waves, to elongations greater than 90° from the Sun from a spacecraft in an ≈800 km Earth orbit. The predecessor of this instrument was the zodiacal-light photometer experiment on the HELIOS spacecraft which demonstrated the capability of remotely imaging transient heliospheric structures . The HELIOS photometers have shown it possible to image mass ejections, co-rotating structures and the density enhancements behind shock waves. The second-generation imager we are designing, would have far higher spatial resolution enabling us to make a more complete description of these features from the Sun to 1 AU. In addition, an imager at Earth could allow up to three days warning of the arrival of a solar mass ejection.
KeywordsCoronal Mass Ejection Solar Mass Ejection Imager Zodiacal Light Zodiacal Cloud Solar Elongation
Unable to display preview. Download preview PDF.
- 1.B. Jackson, R. Gold and R. Altrock: Adv. Space Res., 11, 377, (1991)Google Scholar
- 2.B.V. Jackson: Yosemite 1988 Conference on Outstanding Problems in Solar System Plasma Physics: Theory and Instrumentation, Yosemite National Park, California, February 2–5,1988,(1989)Google Scholar
- 3.B.V. Jackson: Adv. Space Res., 6, 307, (1986)Google Scholar
- 4.B.V. Jackson: AFGL-TR-88-0195, (1988)Google Scholar
- 5.B.V. Jackson, H.S. Hudson, J.D. Nichols and R.E. Gold: Yosemite 1988 Conference on Outstanding Problems in Solar System Plasma Physics: Theory and Instrumentation, Yosemite National Park, California, February 2–5, 1988, (1989)Google Scholar
- 6.B.V. Jackson, H.D. Zink and R.E. Gold: JHU/APL SDO 8416, Report to the USAF and NASA, (1987)Google Scholar
- 7.C.W. Allen: Astrophysical Quantities (Athlone, London, England) (1964)Google Scholar
- 8.George Carruthers: private communication (1991)Google Scholar
- 9.A.V. Jones: Aurora, ed. by B.M. McCormac (Reidel, Dordrecht, Holland) (1974)Google Scholar
- 10.R.R. Meier and P. Mange: Planet. Space Sci., 21, 309, (1973)Google Scholar
- 11.D.E. Anderson, Jr., R.R.Meier, R.R. Hodges, Jr. and B.A. Tinsley: J. Geophys. Res. 92, 7619, (1987)Google Scholar
- 12.D.G. Torr: NASA Conference Publication 3002, (1988)Google Scholar