Analysis of DC Electric Fields Observed by SS-520-2 Sounding Rocket in the Polar Region.
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Accession number;03A0117010
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| Title;Analysis of DC Electric Fields Observed by SS-520-2 Sounding Rocket in the Polar Region. |
| Author;
MIYAKE TAKETOSHI
(Toyama Prefectural Univ. Coll. Engineering)
OKADA TOSHIMI
(Toyama Prefectural Univ. Coll. Engineering)
MIYAKAWA JUN
(Toyama Prefectural Univ. Coll. Engineering)
TOMISHIMA DAISUKE
(Toyama Prefectural Univ. Coll. Engineering)
ISHISAKA KEIGO
(Toyama Prefectural Univ. Coll. Engineering)
KOJIMA HIROTSUGU
(Kyoto Univ., Radio Sci. Center for Space & Atmosphere (RASC), Kyoto, JPN)
UEDA YOSHIKATSU
(Kyoto Univ., Radio Sci. Center for Space & Atmosphere (RASC), Kyoto, JPN)
MATSUMOTO HIROSHI
(Kyoto Univ., Radio Sci. Center for Space & Atmosphere (RASC), Kyoto, JPN)
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Journal Title;IEICE Transactions on Communications (Japanese Edition)
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Journal Code:S0622C
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ISSN:1344-4697
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VOL.J86-B;NO.2;PAGE.236-244(2003)
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| Figure&Table&Reference;FIG.10, REF.15 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;On December 4, 2000, an observation rocket, SS-520 No. 2 of the Ministry of Education and Sceience was launched from Spitsbergen Island in Norway. The observation rocket, SS-520 No. 2 arrived at 1,108 km of maximum altitude, carried out observation ranging to 1,150 seconds, and collected good data. The rocket aimed at elucidation of acceleration and heating mechanisms of plasma particles at noon polar region, and loaded a particle energy distribution observing apparatus with high time resolution and a wideband wave receiver. In this study, was carried out analysis of DC electric field considered to relate to accelerated phenomena of the plasma particles in special, by the data of an electric field detector (EFD) loaded at the rocket. On analysis of the DC electric field, it is necessary to remove effect of induced electric field, VXB formed by the rocket crossing the earth magnetic field. However, as there are a number of unknown parameters at present, after removing the induced electric field by estimation from these unknown parameters using EFD data, evaluation of the DC electric field was carried out. As a result, existence of natural electric field with about 20 mV/m in intensity at proximity of maximum arriving point of the rocket could be confirmed. And, natural electric field could be observed since about 500 seconds after launching the rocket, and its direction was nearly south-west, and its intensity was 20 to 40 mV/m. |
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