IMAGE & Wind Prove Future Mission Concept

• On two Wind perigee passes the Radio Plasma Imager (RPI) on IMAGE generated 828 kHz signals which were observed by Wind/Waves

• Distance between IMAGE and Wind varied from 6 to 12 RE

• Researchers include: Cummer (Duke), & R. Benson, J. Green, M. Kaiser, and M. Reiner (all from GSFC)

• Faraday rotation was measured and occurs when the received electric field is observed to rotate with time due to the changing density of plasma

• Many future multi-spacecraft missions propose to use Faraday rotation to obtain global density pictures of the magnetosphere