ISS (Ionospheric Sounding Satellite)
A pair of Japanese satellites, launched by NASDA (National Space Development Agency) and also known by their national name Ume ("plum"), that collected data on the ionosphere to aid in short-wave radio communication. Their instruments included an ionospheric sounder, a radio noise receiver, plasma measuring equipment, and an ion mass spectrometer. Both measured 3.9 × 0.8 m and were launched by N-1 rockets from Tanegashima.
Related categories JAPANESE SPACECRAFT
SATELLITES AND SPACE PROBES
JAPAN IN SPACE
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