VLF Natural Radio and Plasma Wave Observations by S-310JA-1 and 2 Rockets (e. Event Session) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and the Magnetosphere in the Polar Regions : Part II)

Abstract

This paper describes the results of VLF observations made by the S-310JA-1 and 2 rockets launched on February 13, 1976 and February 10,1977 respectively. Both rockets were equipped with a dipole and a loop antenna which measured VLF plasma wave phenomena in the frequency range of 0.2-10 kHz. The chorus or ELF hiss emissions in the frequency range less than 1 kHz the local wave phenomena identified as ion acoustic waves or electrostatic ion cyclotron waves were observed by S-310JA-1. In the S-310JA-2 experiment, VLF hiss was observed, which was identified as LHR hiss. As to the relationship between the VLF noise intensity and the energetic electron flux in the energy range less than 10 keV, no clear correlation was found in either of the experiments.