Science operation, data handling, and ground support system of the SOLAR-C mission
Abstract
SOLAR-C is an international solar-observing satellite mission led by Japan Aerospace Exploration Agency (JAXA). It aims to elucidate mass and energy transport in solar atmospheres through extreme ultraviolet (EUV) spectroscopy. The mission carries the EUV High-throughput Spectroscopic Telescope (EUVST) and the Solar Spectral Irradiance Monitor (SoSpIM), enabling comprehensive observations across a wide temperature range (10^4 K to 10^7 K) with minimum temperature gaps and high spatial and temporal resolution. To achieve its science objectives regarding atmospheric heating and solar flare eruptions, SOLAR-C implements a flexible and responsive operational procedure and a data processing system, while building on the heritage of the Hinode and IRIS satellites. The Chief Observer creates observation timelines that include core observation plans and approved proposed plans while taking into account the solar activity levels. A SpaceWire communication architecture is employed onboard the spacecraft, and a method is implemented in which the mission instrument temporarily acts as the network master during data transfer to support the high data rate requirements. Telemetry is downlinked at ground stations worldwide and gathered at the Institute of Space and Astronautical Science, JAXA. The EUVST data are calibrated at the SOLAR-C Science Center at Nagoya University, while the SoSpIM data are calibrated at the Processing and Archiving Facility before being integrated into the science data products. The data will be made publicly available immediately. The integrated operational scheme for this mission is expected to advance our understanding of solar atmospheric heating and flare processes.
Versions
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BibTeX
@misc{toriumi2026science,
title = {{Science operation, data handling, and ground support system of the SOLAR-C mission}},
author = {Shin Toriumi and Mari Nishiyama and Keiichi Matsuzaki and Toshifumi Shimizu and Hideki Kato and Jun Matsumoto and Mizuho Uchiyama and Kota Miyoshi and Daiki Yamasaki and Hirohisa Hara and Yukio Katsukawa and Masahito Kubo and Ryohko Ishikawa and Takenori J. Okamoto and Shinsuke Imada and Satoshi Masuda and Kyoko Watanabe and Yusuke Iida and Ayumi Asai},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.10997},
eprint = {2609.10997},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.10997},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Science operation, data handling, and ground support system of the SOLAR-C mission
AU - Shin Toriumi
AU - Mari Nishiyama
AU - Keiichi Matsuzaki
AU - Toshifumi Shimizu
AU - Hideki Kato
AU - Jun Matsumoto
AU - Mizuho Uchiyama
AU - Kota Miyoshi
AU - Daiki Yamasaki
AU - Hirohisa Hara
AU - Yukio Katsukawa
AU - Masahito Kubo
AU - Ryohko Ishikawa
AU - Takenori J. Okamoto
AU - Shinsuke Imada
AU - Satoshi Masuda
AU - Kyoko Watanabe
AU - Yusuke Iida
AU - Ayumi Asai
PY - 2026
DA - 2026/09/10
PB - arXiv
DO - 10.48550/arxiv.2609.10997
UR - https://arxiv.org/abs/2609.10997
AB - SOLAR-C is an international solar-observing satellite mission led by Japan Aerospace Exploration Agency (JAXA). It aims to elucidate mass and energy transport in solar atmospheres through extreme ultraviolet (EUV) spectroscopy. The mission carries the EUV High-throughput Spectroscopic Telescope (EUVST) and the Solar Spectral Irradiance Monitor (SoSpIM), enabling comprehensive observations across a wide temperature range (10^4 K to 10^7 K) with minimum temperature gaps and high spatial and temporal resolution. To achieve its science objectives regarding atmospheric heating and solar flare eruptions, SOLAR-C implements a flexible and responsive operational procedure and a data processing system, while building on the heritage of the Hinode and IRIS satellites. The Chief Observer creates observation timelines that include core observation plans and approved proposed plans while taking into account the solar activity levels. A SpaceWire communication architecture is employed onboard the spacecraft, and a method is implemented in which the mission instrument temporarily acts as the network master during data transfer to support the high data rate requirements. Telemetry is downlinked at ground stations worldwide and gathered at the Institute of Space and Astronautical Science, JAXA. The EUVST data are calibrated at the SOLAR-C Science Center at Nagoya University, while the SoSpIM data are calibrated at the Processing and Archiving Facility before being integrated into the science data products. The data will be made publicly available immediately. The integrated operational scheme for this mission is expected to advance our understanding of solar atmospheric heating and flare processes.
ER -