Whistler mode interactions and plasma sheet electrons

Document presents a unique set of wave and particle measurements, taken by the S3-3 satellite on 2 August 1976, from which it is infered that signals from a ground-based VLF transmitter were ducted up to the equatorial plasma sheet region by a detached region at L approx. 4.5. The waves resonated with the 1-keV plasma sheet electrons, producing narrowband emissions that were received in the conjugate hemisphere by the S3-3 satellite at about L approx. 3.