搭載用セシウム雲発生弾の開発とそのロケット実験-II

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The second experiment of the creation of the cesium plasma cloud in the upper atmosphere was conducted at K.S.C., on 18th, 1828 JST, Feb., 1972, with K-9 M-39 rocket which carried the improved type cesium vapourizer. The luminous cloud occurred at the altitude of 128 km and observed optically from the five ground points for the period of about 20 min. lonosonde observations were made from three different sites; K.S.C., Yamagawa and Nishinoomote, simultaneously. Positive results of returning signals from the artificial irregularity were obtained in each ionograms. Using those data in slant range with time, the horizontal wind in this region was derived; the wind velocity is about 48 m/s and wind direction is about 245°N, which holds good agreement with optical results.
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