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https://hdl.handle.net/20.500.14094/90005043

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メタデータID
90005043
アクセス権
open access
出版タイプ
Version of Record
タイトル
Ultraviolet imager on Venus orbiter Akatsuki and its initial results
著者
Yamazaki, Atsushi ; Yamada, Manabu ; Lee, Yeon Joo ; Watanabe, Shigeto ; Horinouchi, Takeshi ; Murakami, Shin-ya ; Kouyama, Toru ; Ogohara, Kazunori ; Imamura, Takeshi ; Sato, Takao M. ; Yamamoto, Yukio ; Fukuhara, Tetsuya ; Ando, Hiroki ; Sugiyama, Ko-ichiro ; Takagi, Seiko ; Kashimura, Hiroki ; Ohtsuki, Shoko ; Hirata, Naru ; Hashimoto, George L. ; Suzuki, Makoto ; Hirose, Chikako ; Ueno, Munetaka ; Satoh, Takehiko ; Abe, Takumi ; Ishii, Nobuaki ; Nakamura, Masato
著者名
Yamazaki, Atsushi
著者名
Yamada, Manabu
著者名
Lee, Yeon Joo
著者名
Watanabe, Shigeto
著者名
Horinouchi, Takeshi
著者名
Murakami, Shin-ya
著者名
Kouyama, Toru
著者名
Ogohara, Kazunori
著者名
Imamura, Takeshi
著者名
Sato, Takao M.
著者名
Yamamoto, Yukio
著者名
Fukuhara, Tetsuya
著者名
Ando, Hiroki
著者名
Sugiyama, Ko-ichiro
著者名
Takagi, Seiko
著者ID
A2028
研究者ID
1000080635186
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=545c0fa0e041a543520e17560c007669
著者名
Kashimura, Hiroki
樫村, 博基
カシムラ, ヒロキ
所属機関名
理学研究科
著者名
Ohtsuki, Shoko
著者名
Hirata, Naru
著者名
Hashimoto, George L.
著者名
Suzuki, Makoto
著者名
Hirose, Chikako
著者ID
A0284
著者名
Ueno, Munetaka
上野, 宗孝
ウエノ, ムネタカ
所属機関名
理学研究科
著者名
Satoh, Takehiko
著者名
Abe, Takumi
著者名
Ishii, Nobuaki
著者名
Nakamura, Masato
言語
English (英語)
収録物名
Earth, Planets and Space
巻(号)
70
ページ
23-23
出版者
SpringerOpen
刊行日
2018-02-12
公開日
2018-07-18
抄録
The ultraviolet imager (UVI) has been developed for the Akatsuki spacecraft (Venus Climate Orbiter mission). The UVI takes ultraviolet (UV) images of the solar radiation reflected by the Venusian clouds with narrow bandpass filters centered at the 283 and 365 nm wavelengths. There are absorption bands of SO2 and unknown absorbers in these wavelength regions. The UV images provide the spatial distribution of SO2 and the unknown absorber around cloud top altitudes. The images also allow us to understand the cloud top morphologies and haze properties. Nominal sequential images with 2-h intervals are used to understand the dynamics of the Venusian atmosphere by estimating the wind vectors at the cloud top altitude, as well as the mass transportation of UV absorbers. The UVI is equipped with off-axial catadioptric optics, two bandpass filters, a diffuser installed in a filter wheel moving with a step motor, and a high sensitivity charge-coupled device with UV coating. The UVI images have spatial resolutions ranging from 200 m to 86 km at sub-spacecraft points. The UVI has been kept in good condition during the extended interplanetary cruise by carefully designed operations that have maintained its temperature maintenance and avoided solar radiation damage. The images have signal-to-noise ratios of over 100 after onboard desmear processing.
キーワード
Venus orbiter Akatsuki
Ultraviolet imager (UVI)
UVI performance
UV images of Venus at the cloud top altitude
Initial results of cloud tracking
カテゴリ
理学研究科
学術雑誌論文
権利
© The Author(s) 2018.
CC license
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
関連情報
DOI
https://doi.org/10.1186/s40623-017-0772-6