Initial operations of the Soft X-ray Imager onboard XRISM
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arXiv
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| Natura: | Preprint |
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2024
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| author | Suzuki, Hiromasa Yoneyama, Tomokage Kobayashi, Shogo B. Noda, Hirofumi Uchida, Hiroyuki Nobukawa, Kumiko K. Hagino, Kouichi Mori, Koji Tomida, Hiroshi Nakajima, Hiroshi Tanaka, Takaaki Murakami, Hiroshi Uchiyama, Hideki Nobukawa, Masayoshi Kanemaru, Yoshiaki Otsuka, Yoshinori Yokosu, Haruhiko Yonemaru, Wakana Nakano, Hanako Ichikawa, Kazuhiro Takemoto, Reo Matsushima, Tsukasa Yoshimoto, Marina Aoyagi, Mio Shima, Kohei Aoki, Yuma Ito, Yamato Fukuda, Kaito Kiyama, Honoka Aoki, Daiki Fujisawa, Kaito Shimizu, Yasuyuki Higuchi, Mayu Fukuda, Masahiro Sakamoto, Natsuki Azuma, Ryuichi Inoue, Shun Kohmura, Takayoshi Yamauchi, Makoto Hatsukade, Isamu Matsumoto, Hironori Odaka, Hirokazu Mizuno, Tsunefumi Yoshida, Tessei Maeda, Yoshitomo Ishida, Manabu Tsuru, Takeshi G. Yamaoka, Kazutaka Okajima, Takashi Hayashi, Takayuki Hiraga, Junko S. Ozaki, Masanobu Dotani, Tadayasu Tsunemi, Hiroshi Hayashida, Kiyoshi |
| author_facet | Suzuki, Hiromasa Yoneyama, Tomokage Kobayashi, Shogo B. Noda, Hirofumi Uchida, Hiroyuki Nobukawa, Kumiko K. Hagino, Kouichi Mori, Koji Tomida, Hiroshi Nakajima, Hiroshi Tanaka, Takaaki Murakami, Hiroshi Uchiyama, Hideki Nobukawa, Masayoshi Kanemaru, Yoshiaki Otsuka, Yoshinori Yokosu, Haruhiko Yonemaru, Wakana Nakano, Hanako Ichikawa, Kazuhiro Takemoto, Reo Matsushima, Tsukasa Yoshimoto, Marina Aoyagi, Mio Shima, Kohei Aoki, Yuma Ito, Yamato Fukuda, Kaito Kiyama, Honoka Aoki, Daiki Fujisawa, Kaito Shimizu, Yasuyuki Higuchi, Mayu Fukuda, Masahiro Sakamoto, Natsuki Azuma, Ryuichi Inoue, Shun Kohmura, Takayoshi Yamauchi, Makoto Hatsukade, Isamu Matsumoto, Hironori Odaka, Hirokazu Mizuno, Tsunefumi Yoshida, Tessei Maeda, Yoshitomo Ishida, Manabu Tsuru, Takeshi G. Yamaoka, Kazutaka Okajima, Takashi Hayashi, Takayuki Hiraga, Junko S. Ozaki, Masanobu Dotani, Tadayasu Tsunemi, Hiroshi Hayashida, Kiyoshi |
| contents | XRISM (X-Ray Imaging and Spectroscopy Mission) is an astronomical satellite with the capability of high-resolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide field-of-view imaging with the CCD camera, Xtend. Xtend consists of the mirror assembly (XMA: X-ray Mirror Assembly) and detector (SXI: Soft X-ray Imager). The SXI is composed of CCDs, analog and digital electronics, and a mechanical cooler. After the successful launch on September 6th, 2023 (UT) and subsequent critical operations, the mission instruments were turned on and set up. The CCDs have been kept at the designed operating temperature of $-110^\circ$C after the electronics and cooling system were successfully set up. During the initial operation phase, which continued for more than a month after the critical operations, we verified the observation procedure, stability of the cooling system, all the observation options with different imaging areas and/or timing resolutions, and time-tagged and automated operations including those for South Atlantic Anomaly passages. We optimized the operation procedure and observation parameters including the cooler settings, imaging areas for the small window modes, and event selection algorithm. We summarize our policy and procedure of the initial operations for the SXI. We also report on a couple of issues we faced during the initial operations and lessons learned from them. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_19910 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Initial operations of the Soft X-ray Imager onboard XRISM Suzuki, Hiromasa Yoneyama, Tomokage Kobayashi, Shogo B. Noda, Hirofumi Uchida, Hiroyuki Nobukawa, Kumiko K. Hagino, Kouichi Mori, Koji Tomida, Hiroshi Nakajima, Hiroshi Tanaka, Takaaki Murakami, Hiroshi Uchiyama, Hideki Nobukawa, Masayoshi Kanemaru, Yoshiaki Otsuka, Yoshinori Yokosu, Haruhiko Yonemaru, Wakana Nakano, Hanako Ichikawa, Kazuhiro Takemoto, Reo Matsushima, Tsukasa Yoshimoto, Marina Aoyagi, Mio Shima, Kohei Aoki, Yuma Ito, Yamato Fukuda, Kaito Kiyama, Honoka Aoki, Daiki Fujisawa, Kaito Shimizu, Yasuyuki Higuchi, Mayu Fukuda, Masahiro Sakamoto, Natsuki Azuma, Ryuichi Inoue, Shun Kohmura, Takayoshi Yamauchi, Makoto Hatsukade, Isamu Matsumoto, Hironori Odaka, Hirokazu Mizuno, Tsunefumi Yoshida, Tessei Maeda, Yoshitomo Ishida, Manabu Tsuru, Takeshi G. Yamaoka, Kazutaka Okajima, Takashi Hayashi, Takayuki Hiraga, Junko S. Ozaki, Masanobu Dotani, Tadayasu Tsunemi, Hiroshi Hayashida, Kiyoshi Instrumentation and Methods for Astrophysics XRISM (X-Ray Imaging and Spectroscopy Mission) is an astronomical satellite with the capability of high-resolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide field-of-view imaging with the CCD camera, Xtend. Xtend consists of the mirror assembly (XMA: X-ray Mirror Assembly) and detector (SXI: Soft X-ray Imager). The SXI is composed of CCDs, analog and digital electronics, and a mechanical cooler. After the successful launch on September 6th, 2023 (UT) and subsequent critical operations, the mission instruments were turned on and set up. The CCDs have been kept at the designed operating temperature of $-110^\circ$C after the electronics and cooling system were successfully set up. During the initial operation phase, which continued for more than a month after the critical operations, we verified the observation procedure, stability of the cooling system, all the observation options with different imaging areas and/or timing resolutions, and time-tagged and automated operations including those for South Atlantic Anomaly passages. We optimized the operation procedure and observation parameters including the cooler settings, imaging areas for the small window modes, and event selection algorithm. We summarize our policy and procedure of the initial operations for the SXI. We also report on a couple of issues we faced during the initial operations and lessons learned from them. |
| title | Initial operations of the Soft X-ray Imager onboard XRISM |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2406.19910 |