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Precise Orbit Determination by using MADOCA on JSS3

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24ER0800 Subject Category: Space Technology PDF Responsible Representative: Satoshi Kogure, Space Technology Directrate I, Satellite Navigation Unit Contact Information: TAKIGUCHI Hiroshi(takiguchi.hiroshi@jaxa.jp) Members: Sho Miyoshi, Tatsuya Nagano, Hideki Narita, Masato Okeya, Takashi Tsuruta, Hiroshi Takiguchi, Makoto Watanabe Abstract Satellite Navigation Unit continuously generates and provides satellite orbit and clock products essential for precise positioning using MADOCA (Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis) and are delivered to users via・・・<<read more>>

Research of Precipitation Measuring Mission

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24ER1400 Subject Category: Space Technology PDF Responsible Representative: Riko Oki, Earth Observation Research Center Contact Information: Takuji Kubota(kubota.takuji@jaxa.jp) Members: Tomohiko Higashiuwatoko, Takeshi Masaki, Masato Ito, Munehisa K. Yamamoto, Takuji Kubota Abstract Calculation of the global rainfall map derived from Tropical Rainfall Measuring Mission (TRMM) and the Global Precipitation Measurement (GPM) during a period from Decemebr 1997 to March 2023 using the latest GSMaP standard algorithm (V08) and GSMaP Gauge NRT・・・<<read more>>

Utilization of JSS3 for AMSR-E higher level data processing

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24ER1501 Subject Category: Space Technology PDF Responsible Representative: hironori maejima, Derector of The Satellite Applications and Operation Center Contact Information: Marina Ohara(ohara.marina@jaxa.jp) Members: Katsunori Iijima, Makoto Imanaka, Toshiyuki Konishi, Sachiko Kawase, Osamu Motohashi, Daichi Obinata, Yuji Taniguchi, Tadahiro Yamamoto Abstract AMSR-E*1, AMSR2*2 estimates various geophysical parameters by measuring radio waves in the weak microwave band radiated from the Earth's surface and the atmosphere with multiple frequencies and multiple polarizations. Geophysical・・・<<read more>>

Greenhouse gases Observing SATellite-2 (GOSAT-2) Project

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24ER3500 Subject Category: Space Technology PDF Responsible Representative: SUTO, Hiroshi, GOSAT-2 Project Team, Space Technology Directorate I Contact Information: Rio Kajiura(kajiura.rio@jaxa.jp) Members: Makiko Hashimoto, Shin Ishida, Kenji Kowata, Fumie Kataoka, Yuki Kobayashi, Nobuhiro Kikuchi, Taro Makino, Tomoyuki Mabuchi, Hiroshi Suto, Hideki Suetake, Shigeaki Wada, Yugi Yata Abstract GOSAT-2 project retrieve and estimate the global concentration distribution of major greenhouse gases including the sources and natural absorbers with high level of・・・<<read more>>

Study on numerical analysis of unsteady compressible flow field

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24ETET00 Subject Category: Skills Acquisition System PDF Responsible Representative: Nobutaka Taniguchi, PhD candidate student of University of Tokyo Contact Information: Nobutaka Taniguchi(taniguchi-nobutaka@g.ecc.u-tokyo.ac.jp) Members: Nobutaka Taniguchi Abstract Stability analysis is a method to investigate the time-evolution of disturbance field applied to the flow field. In this study, we develop a numerical method suitable for the analysis of compressible flow considering the accurate track of nonlinear time-evolution of the disturbance field. To・・・<<read more>>