List of Publications

Project Overview

  • Oyama, K.-I., T. Imamura, T. Abe, Feasibility study for Venus atmosphere mission, Adv. Space Res., 29, 265-271, doi:10.1016/S0273-1177(01)00577-4, 2002. URL
  • Ishii, N., H. Yamakawa, S. Sawai, M. Shida, T. Hashimoto, M. Nakamura, T. Imamura, T. Abe, K.-I. Oyama, I. Nakatani, Current status of the PLANET-C Venus orbiter design, Adv. Space Res., 34, 1668-1672, doi:10.1016/j.asr.2004.07.006, 2004. URL
  • Nakamura, M., T. Imamura, M. Ueno, N. Iwagami, T. Satoh, S. Watanabe, M. Taguchi, Y. Takahashi, M. Suzuki, T. Abe, G. L. Hashimoto, T. Sakanoi, S. Okano, Y. Kasaba, J. Yoshida, M. Yamada, N. Ishii, T. Yamada, K.-I. Oyama, Planet-C: Venus Climate Orbiter mission of Japan, Planet. Space Sci., 55, 1831-1842, doi:10.1016/j.pss.2007.01.009, 2007. URL
  • Nakamura, M., T. Imamura, N. Ishii, T. Abe, T. Satoh, M. Suzuki, M. Ueno, A. Yamazaki, N. Iwagami, S. Watanabe, M. Taguchi, T. Fukuhara, Y. Takahashi, M. Yamada, N. Hoshino, S. Ohtsuki, K. Uemizu, G. L. Hashimoto, M. Takagi, Y. Matsuda, K. Ogohara, N. Sato, Y. Kasaba, T. Kouyama, N. Hirata, R. Nakamura, Y. Yamamoto, N. Okada, T. Horinouchi, M. Yamamoto, Y.-Y. Hayashi, Overview of Venus orbiter, Akatsuki, Earth Planets Space, 63, 443-457, doi:10.5047/eps.2011.02.009, 2011. URL
  • Nakamura, M., Y. Kawakatsu, C. Hirose, T. Imamura, N. Ishii, T. Abe, A. Yamazaki, M. Yamada, K. Ogohara, K. Uemizu, T. Fukuhara, S. Ohtsuki, T. Satoh, M. Suzuki, M. Ueno, J. Nakatsuka, N. Iwagami, M. Taguchi, S. Watanabe, Y. Takahashi, G. L. Hashimoto, H. Yamamoto, Return to Venus of the Japanese Venus Climate Orbiter AKATSUKI, Acta Astronautica, 93, 384-389, doi:10.1016/j.actaastro.2013.07.027, 2014. URL
  • Nakamura, M., T. Imamura, N. Ishii, T. Abe, Y. Kawakatsu, C. Hirose, T. Satoh, M. Suzuki, M. Ueno, A. Yamazaki, N. Iwagami, S. Watanabe, M. Taguchi, T. Fukuhara, Y. Takahashi, M. Yamada, M. Imai, S. Ohtsuki, K. Uemizu, G. L. Hashimoto, M. Takagi, Y. Matsuda, K. Ogohara, N. Sato, Y. Kasaba, T. Kouyama, N. Hirata, R. Nakamura, Y. Yamamoto, T. Horinouchi, M. Yamamoto, Y.-Y. Hayashi, H. Kashimura, K. Sugiyama, T. Sakanoi, H. Ando, S. Murakami, T. M. Sato, S. Takagi, K. Nakajima, J. Peralta, Y. J. Lee, J. Nakatsuka, T. Ichikawa, K. Inoue, T. Toda, H. Toyota, S. Tachikawa, S. Narita, T. Hayashiyama, A. Hasegawa, Y. Kamata, AKATSUKI returns to Venus, Earth, Planets and Space, 68:75, doi:10.1186/s40623-016-0457-6, 2016. URL

Science Instruments

  • Taguchi, M., T. Fukuhara, T. Imamura, M. Nakamura, N. Iwagami, M. Ueno, M. Suzuki, G. L. Hashimoto, K. Mitsuyama, Longwave infrared camera onboard the Venus Climate Orbiter, Adv. Space Res., 40, 861-868, doi:10.1016/j.asr.2007.05.085, 2007. URL
  • Takahashi, Y., J. Yoshida, Y. Yair, T. Imamura, M. Nakamura, Lightning detection by LAC onboard the Japanese Venus climate orbiter, Planet-C, Space Sci. Rev., 137, 317-334, doi:10.1007/s11214-008-9400-x., 2008. URL
  • Imamura, T., T. Toda, A. Tomiki, D. Hirahara, T. Hayashiyama, N. Mochizuki, Z. Yamamoto, T. Abe, T. Iwata, H. Noda, Y. Futaana, H. Ando, B. Häusler, M. Pätzold, A. Nabatov, Radio occultation experiment of the Venus atmosphere and ionosphere with the Venus orbiter Akatsuki, Earth Planets Space, 63, 493-501, doi:10.5047/eps.2011.03.009, 2011. URL
  • Fukuhara, T., M. Taguchi, T. Imamura, M. Nakamura, M. Ueno, M. Suzuki, N. Iwagami, M. Sato, K. Mitsuyama, G. L. Hashimoto, R. Ohshima, T. Kouyama, H. Ando, M. Futaguchi, LIR: Longwave Infrared Camera onboard the Venus orbiter Akatsuki, Earth Planets Space, 63, doi:10.5047/eps.2011.06.019, 1009-1018, 2011. URL
  • Takagi, S., N. Iwagami, Contrast sources for the infrared images taken by the Venus mission AKATSUKI, Earth, Planets and Space, 63, 435-442, doi:10.5047/eps.2011.01.007, 2011. URL
  • Iwagami, N., S. Takagi, S. Ohtsuki, M. Ueno, K. Uemizu, T. Satoh, T. Sakanoi, G. L. Hashimoto, Science requirements and description of the 1 μm camera onboard the Akatsuki Venus Orbiter, Earth, Planets and Space, 63, 487-492, doi:10.5047/eps.2011.03.007, 2011. URL
  • Satoh, T. M. Nakamura, M. Ueno, K. Uemizu, M. Suzuki, T. Imamura, Y. Kasaba, S. Yoshida, M. Kimata, Development and in-flight calibration of IR2: 2-μm camera onboard Japan's Venus orbiter, Akatsuki, Earth, Planets and Space, 68:74, doi:10.1186/s40623-016-0451-z, 2016. URL

Data Pipeline

  • Ogohara, K., T. Kouyama, H. Yamamoto, N. Sato, M. Takagi, T. Imamura, A newly developed cloud tracking system for the Venus Climate Orbiter Akatsuki and preliminary results using Venus Express data, Theoretical and Applied Mechanics Japan, 60, 193-202, doi:10.11345/nctam.60.193, 2012. URL
  • Ogohara, K., T. Kouyama, H. Yamamoto, N. Sato, M. Takagi, T. Imamura, Automated cloud tracking system for the Akatsuki Venus climate orbiter data, Icarus, 217, 661-668, doi:10.1016/j.icarus.2011.05.017, 2012. URL
  • Ikegawa, S., T. Horinouchi, Improved automatic estimation of winds at the cloud top of Venus using superposition of cross-correlation surfaces, Icarus, 271, 98-119, doi:10.1016/j.icarus.2016.01.018, 2016. URL
  • Horinouchi, T., S. Murakami, T. Kouyama, K. Ogohara, A. Yamazaki, M. Yamada, S. Watanabe, Image velocimetry for clouds with relaxation labeling based on deformation consistency, Meas. Sci. Technol., in press, doi:10.1088/1361-6501/aa695c, 2017.

Results

  • Taguchi, M. T. Fukuhara, M. Futaguchi, M. Sato, T. Imamura, K. Mitsuyama, M. Nakamura, M. Ueno, M. Suzuki, N. Iwagami, G. L. Hashimoto, Characteristic features in Venus' nightside cloud-top temperature obtained by Akatsuki/LIR, Icarus, 219, 502-509, doi:10.1016/j.icarus.2012.01.024, 2012. URL
  • Imamura, T., M. Tokumaru, H. Isobe, D. Shiota, H. Ando, M. Miyamoto, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, A. Asai, K. Yaji, M. Yamada, M. Nakamura, Outflow structure of the quiet Sun corona probed by spacecraft radio scintillations in strong scattering, Astrophys. J., 788, 117, doi:10.1088/0004-637X/788/2/117, 2014. URL
  • Miyamoto, M., T. Imamura, M. Tokumaru, H. Ando, H. Isobe, A. Asai, D. Shiota, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, M. Nakamura, Radial distribution of compressive waves in the solar corona revealed by Akatsuki radio occultation observations, Astrophys. J., 797, 51, doi:10.1088/0004-637X/797/1/51, 2014. URL
  • Satoh, T., S. Ohtsuki, N. Iwagami, M. Ueno, K. Uemizu, M. Suzuki, G. L. Hashimoto, T. Sakanoi, Y. Kasaba, R. Nakamura, T. Imamura, M. Nakamura, T. Fukuhara, A. Yamazaki, M. Yamada, Venus' clouds as inferred from the phase curves acquired by IR1 and IR2 on board Akatsuki, Icarus, 248, 213-220, doi:10.1016/j.icarus.2014.10.030, 2015. URL
  • Ando, H., D. Shiota, T. Imamura, M. Tokumaru, A. Asai, H. Isobe, M. Päzold, B. Häusler, M. Nakamura, Internal structure of a coronal mass ejection revealed by Akatsuki radio occultation observations, J. Geophys. Res., 120, 5318-5328, doi:10.1002/2015JA021076, 2015. URL
  • Fukuhara, T., M. Futaguchi, G. L. Hashimoto, T. Horinouchi, T. Imamura, N. Iwagami, T. Kouyama, S. Murakami, M. Nakamura, K. Ogohara, M. Sato, T. M. Sato, M. Suzuki, M. Taguchi, S. Takagi, M. Ueno, S. Watanabe, M. Yamada, A. Yamazaki, Large stationary gravity wave in the atmosphere of Venus, Nature Geoscience, 10, 85-88, doi:10.1038/ngeo2873, 2017. URL Press Release (ISAS/JAXA, in Japanese) Press Release (Rikkyo Univ., in Japanese)