Abstract
A L-band CW-beacon experiment using ETS-V satellite for mobile satellite communications experiments was made with the small satellite ground stations installed at Fiji, Indonesia, Papua New Guinea, Thailand and Japan in order to study propagation effects on satellite-to-ground-links in the equatorial zone. GPS observations of total ionospheric electron content and monitoring of geomagnetic variations were started at the same ground stations in Bandung, Indonesia and Bangkok, Thailand from November, 1993. During the severe ionospheric disturbances on February 22, 1994 Japanese Broadcasting Satellite BS-3a stopped its broadcasting for about one hour by an unexpected satellite trouble. We focused on this event by comparing between TEC observed in low-latitude and midlatitude of northern hemisphere. The cause of this sattelite trouble is supposed mainly by the electric static discharge (ESD) in the satellite. The severe geomagnetic storm on 21 February, 1994 is related in this paper as one of the cause for this satellite trouble.
Published Version
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