摘要：VLF hiss was observed on the S-310JA-2 rocket at Syowa Station in the Antarctic region (69°00'S, 39°35' E) at 03 22 LT on February 10, 1977, during polar magnetic storm (ΔH, -680γ) This hiss was observed only with a 24 m tip-to-tip electric dipole antenna, not observed with a ferrite core loop antenna, and exhibited a sharp lower cut-off frequency which seemed to be associated with lowerhybrid resonance (LHR) in the vicinity of rocket, If we assume the ion composition and electron density. at the observing altitude. Therefore it may be the first rocket observation of LHR hiss. We also obtained altitude profiles of sheath impedance and 7 kHz hiss strength.
