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30 results on '"Otsubo, Toshimichi"'

2. Demonstration of deep-space synchronous two-way laser ranging with a laser transponder aboard Hayabusa2

Author

Noda, Hirotomo, Senshu, Hiroki, Otsubo, Toshimichi, Takeuchi, Hiroshi, Courde, Clément, Kunimori, Hiroo, Moore, Christopher, Schreiber, Ulrich, Ogawa, Naoko, Saiki, Takanao, Takei, Yuto, Aimar, Mourad, Chabé, Julien, Eckl, Johann, Kamata, Shun'ichi, Higuchi, Arika, Hirai, Takayuki, Martinot-Lagarde, Grégoire, Mariey, Hervé, Matsumoto, Koji, Maurice, Nicolas, Nakazono, Jun'ichi, Phung, Duy-Hà, Scariot, Julien, Suetsugu, Ryo, Torre, Jean-Marie, Pollard, Alex, Viot, Hervé, Namiki, Noriyuki, and Mizuno, Takahide

Published
2023
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4. Improving Hayabusa2 trajectory by combining LIDAR data and a shape model

Author

Matsumoto, Koji, Noda, Hirotomo, Ishihara, Yoshiaki, Senshu, Hiroki, Yamamoto, Keiko, Hirata, Naru, Hirata, Naoyuki, Namiki, Noriyuki, Otsubo, Toshimichi, Higuchi, Arika, Watanabe, Sei-ichiro, Ikeda, Hitoshi, Mizuno, Takahide, Yamada, Ryuhei, Araki, Hiroshi, Abe, Shinsuke, Yoshida, Fumi, Sasaki, Sho, Oshigami, Shoko, Tsuruta, Seiitsu, Asari, Kazuyoshi, Shizugami, Makoto, Yamamoto, Yukio, Ogawa, Naoko, Kikuchi, Shota, Saiki, Takanao, Tsuda, Yuichi, Yoshikawa, Makoto, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Yamaguchi, Tomohiro, Takei, Yuto, Takeuchi, Hiroshi, Okada, Tatsuaki, Yamada, Manabu, Shimaki, Yuri, Shirai, Kei, Ogawa, Kazunori, and Iijima, Yu-ichi

Published
2020
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12. Dynamic precise orbit determination of Hayabusa2 using laser altimeter (LIDAR) and image tracking data sets

Author

Yamamoto, Keiko, Otsubo, Toshimichi, Matsumoto, Koji, Noda, Hirotomo, Namiki, Noriyuki, Takeuchi, Hiroshi, Ikeda, Hitoshi, Yoshikawa, Makoto, Yamamoto, Yukio, Senshu, Hiroki, Mizuno, Takahide, Hirata, Naru, Yamada, Ryuhei, Ishihara, Yoshiaki, Araki, Hiroshi, Abe, Shinsuke, Yoshida, Fumi, Higuchi, Arika, Sasaki, Sho, Oshigami, Shoko, Tsuruta, Seiitsu, Asari, Kazuyoshi, Shizugami, Makoto, Ogawa, Naoko, Ono, Go, Mimasu, Yuya, Yoshikawa, Kent, Takahashi, Tadateru, Takei, Yuto, Fujii, Atsushi, Yamaguchi, Tomohiro, Kikuchi, Shota, Watanabe, Sei-ichiro, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Saiki, Takanao, and Tsuda, Yuichi

Published
2020
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15. Small-size, low-cost, multi-purpose SLR System: Omni-SLR

Author

Otsubo, Toshimichi, Araki, Hiroshi, Yokota, Yusuke, Matsumoto, Takehiro, Kobayashi, Mihoko, Kouno, Kenji, Doi, Koichiro, Aoyama, Yuichi, Takashima, Tetsu, and Yanagimoto, Noritomo

Abstract

For a better global coverage of SLR (Satellite Laser Ranging) stations, We have formed an industry-government-academia research group in Japan and have designed and integrated a very minimum system for SLR. The basic concepts are small-size and low-cost in contrast to the majority of the existing SLR stations. As of early 2023, we have not tested actual ranging observations to SLR satellites yet, but we have finished testing its core components such as a laser, a timer and a telescope mount, and we are currently assembling these components and developing software. This project is linked with airbourne/satellite optical communications where high precision optical tracking is essential, and the deployment to the Antarctica is also under consideration., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

16. The 10-year evolution of GGOS Japan

Author

Otsubo, Toshimichi, Miyahara, Basara, Kurihara, Shinobu, Yokota, Yusuke, Takagi, Yu, Nakamura, Yuto, Takiguchi, Hiroshi, Aoyama, Yuichi, and Matsuo, Koji

Abstract

This presentation covers the 10 year history of GGOS Japan.As many as six Japanese national institutes have been operating large-size geodetic facilities with VLBI and/or SLR in Japan and also in Antarctica, and they had been involved in each geodetic service rather independently. In 2013, we initiated "GGOS Working Group" in Japan to enhance the communications among the Japanese institutes and global geodesists and also to encourage collaboration beyond each technique.GGOS Japan is basically a loose network, but it has a chair, a secretary, an outreach representative, working groups (currently active: Data DOI working group) and representatives of each geodetic technique (VLBI, SLR/LLR, GNSS, DORIS and gravimetry). We regularly host annual meetings and sometimes small meetings with focused issues. We have also involved in organising or supporting scientific sessions in domestic and international conferences.During the 10 years history, it was positioned as a GGOS Affiliate in 2017 and we renamed it as "GGOS Japan" in 2019. Basara Miyahara was elected as the GGOS President in 2019. GGOS Japan's webpages are being updated on the GGOS Website, and we have contributed to GGOS YouTube channels.We often set focused activities. We are currently working on the review of ITRF2020 from an operating point of view, and we are also working on a possible best location for a future GGOS Cores site in Japan. In the future we hope to collaborate with international communities, in particular with other GGOS Affiliates., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

17. GGOS Affiliate – GGOS Japan Report

Author

Otsubo, Toshimichi, Miyahara, Basara, Kurihara, Shinobu, Yokota, Yusuke, Takagi, Yu, Nakamura, Yuto, Takiguchi, Hiroshi, Aoyama, Yuichi, and Matsuo, Koji

Abstract

A report from GGOS Japan, the first GGOS Affiliate, ranging from its 9-year history and the latest news.

Published
2022
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27. GGOS Japan: Uniting Space Geodetic Activities in Japan

Author

Otsubo, Toshimichi, primary, Miyahara, Basara, additional, Yokota, Yusuke, additional, Kurihara, Shinobu, additional, Munekane, Hiroshi, additional, Watanabe, Shun-ichi, additional, Miyazaki, Takayuki, additional, Takiguchi, Hiroshi, additional, Aoyama, Yuichi, additional, Doi, Koichiro, additional, Fukuda, Yoichi, additional, Matsuo, Koji, additional, Jike, Takaaki, additional, Matsumoto, Takehiro, additional, and Ichikawa, Ryuichi, additional

Published
2020
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29. cm精度で軌道を決める:地球を測る

Author

Otsubo, Toshimichi, 大坪 俊通, Otsubo, Toshimichi, and 大坪 俊通

Abstract

New technologies have made it possible to measure the satellite orbits at cm precision. Precise orbit determination software requires a number of physical models on the satellite acceleration, the rotation of the Earth, the site displacement, and so on. Reversely it can be used for detecting precise effects of cm or even sub-cm order., 近年の新しいテクノロジにより、人工衛星の軌道をcmで測定することが可能になっている。そのデータ解析を行う軌道決定ソフトウェアにおいては、衛星に作用する加速度・地球の回転・地上局の動きなど、数多くの物理モデルを取り込む必要がある。一方で、精密軌道決定を通して、cmあるいはmmオーダーの新たな物理現象を検出することも可能である。, JAXA Special Publication, 宇宙航空研究開発機構特別資料

Published
2015

30. GPSおよび超小型加速度計搭載小型衛星計画

Author

Fukuda, Yoichi, Tsuda, Toshitaka, Araya, Akito, Saito, Akinori, Kunimori, Hiroo, Otsubo, Toshimichi, Aoyama, Yuichi, 福田 洋一, 津田 敏隆, 新谷 昌人, 齋藤 昭則, 國森 裕生, 大坪 俊通, 青山 雄一, Fukuda, Yoichi, Tsuda, Toshitaka, Araya, Akito, Saito, Akinori, Kunimori, Hiroo, Otsubo, Toshimichi, Aoyama, Yuichi, 福田 洋一, 津田 敏隆, 新谷 昌人, 齋藤 昭則, 國森 裕生, 大坪 俊通, and 青山 雄一

Abstract

We propose a mission plan by means of a micro-satellite on a Low Earth Orbit (LEO) (300-1,000 km) with an advanced GPS (Global Positioning System) receiving system and a micro accelerometer on board. This LEO satellite can provide the following Earth observations: (1) time variations of low degrees Earth's gravity field coefficients; (2) fluctuations in atmospheric density in the thermosphere estimated from the atmospheric drags; (3) vertical structures of temperature, water vapor and electron density with GPS occultation technique; (4) the sea surface height and surface winds by receiving GPS reflection. The cost of this kind of small satellite is mush smaller than the ordinary earth observation satellites. Thus a large number of this kind of LEO satellites enables the low cost Earth's environments monitoring with high temporal and spatial resolutions in future.

Published
2015

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