On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite

Yoshitomo Maeda; Masatoshi Ebara; Ryuichi Fujimoto; Takayuki Hayashi; Hirohiko Inoue; Yoshitaka Ishisaki; Hideyuki Mori; Shunsaku Okada; Kensuke Suzuki; Yasunobu Uchiyama; Peter J. Serlemitsos; Yang Soong; Kai Wing Chan; Takashi Okajima; John P. Lehan; Kei Itoh; Akiharu Itoh; Yushi Yokoyama; Yumi Itoh; Ryoko Nakamura; Manabu Ishida; Akira Hayakawa; Chiaki Inoue; Satoshi Okuma; Ren Kubota; Masaki Suzuki; Takeyuki Osawa; Koujun Yamashita; Hideyo Kunieda; Yuzuru Tawara; Yasushi Ogasaka; Akihiro Furuzawa; Keisuke Tamura; Ryo Shibata; Yoshito Haba; Masataka Naitou; Kazutami Misaki; Ryo Iizuka

doi:10.1143/PTPS.169.322

On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite

Yoshitomo Maeda, Masatoshi Ebara, Ryuichi Fujimoto, Takayuki Hayashi, Hirohiko Inoue, Yoshitaka Ishisaki, Hideyuki Mori, Shunsaku Okada, Kensuke Suzuki, Yasunobu Uchiyama, Peter J. Serlemitsos, Yang Soong, Kai Wing Chan, Takashi Okajima, John P. Lehan, Kei Itoh, Akiharu Itoh, Yushi Yokoyama, Yumi Itoh, Ryoko NakamuraManabu Ishida, Akira Hayakawa, Chiaki Inoue, Satoshi Okuma, Ren Kubota, Masaki Suzuki, Takeyuki Osawa, Koujun Yamashita, Hideyo Kunieda, Yuzuru Tawara, Yasushi Ogasaka, Akihiro Furuzawa, Keisuke Tamura, Ryo Shibata, Yoshito Haba, Masataka Naitou, Kazutami Misaki, Ryo Iizuka

Research output: Contribution to journal › Article › peer-review

Abstract

We present the in-flight performance of the X-ray telescopes (XRTs) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3′.6, to 1′.8-2′.3 for all four XRT-I modules. Contemporaneous fits of a power law to all the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor & Seward (1974) to within ∼2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations. We also present the thermal wobbling of the satellite. The wobbling causes the alignment error between the XRT-XIS system and the attitude and orbit control system. The wobbling of the alignment is as large as ∼ larcmin. In the currently processed data, the absolute coordinate also has systematic uncertainty of up to ∼ larcmin.

Original language	English
Pages (from-to)	322-325
Number of pages	4
Journal	Progress of Theoretical Physics Supplement
Issue number	169
DOIs	https://doi.org/10.1143/PTPS.169.322
Publication status	Published - 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1143/PTPS.169.322

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Maeda, Y., Ebara, M., Fujimoto, R., Hayashi, T., Inoue, H., Ishisaki, Y., Mori, H., Okada, S., Suzuki, K., Uchiyama, Y., Serlemitsos, P. J., Soong, Y., Chan, K. W., Okajima, T., Lehan, J. P., Itoh, K., Itoh, A., Yokoyama, Y., Itoh, Y., ... Iizuka, R. (2007). On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite. Progress of Theoretical Physics Supplement, (169), 322-325. https://doi.org/10.1143/PTPS.169.322

@article{e96a80180c634b8ab6307dcb3e314f10,

title = "On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite",

abstract = "We present the in-flight performance of the X-ray telescopes (XRTs) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3′.6, to 1′.8-2′.3 for all four XRT-I modules. Contemporaneous fits of a power law to all the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor \& Seward (1974) to within ∼2\%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations. We also present the thermal wobbling of the satellite. The wobbling causes the alignment error between the XRT-XIS system and the attitude and orbit control system. The wobbling of the alignment is as large as ∼ larcmin. In the currently processed data, the absolute coordinate also has systematic uncertainty of up to ∼ larcmin.",

author = "Yoshitomo Maeda and Masatoshi Ebara and Ryuichi Fujimoto and Takayuki Hayashi and Hirohiko Inoue and Yoshitaka Ishisaki and Hideyuki Mori and Shunsaku Okada and Kensuke Suzuki and Yasunobu Uchiyama and Serlemitsos, \{Peter J.\} and Yang Soong and Chan, \{Kai Wing\} and Takashi Okajima and Lehan, \{John P.\} and Kei Itoh and Akiharu Itoh and Yushi Yokoyama and Yumi Itoh and Ryoko Nakamura and Manabu Ishida and Akira Hayakawa and Chiaki Inoue and Satoshi Okuma and Ren Kubota and Masaki Suzuki and Takeyuki Osawa and Koujun Yamashita and Hideyo Kunieda and Yuzuru Tawara and Yasushi Ogasaka and Akihiro Furuzawa and Keisuke Tamura and Ryo Shibata and Yoshito Haba and Masataka Naitou and Kazutami Misaki and Ryo Iizuka",

year = "2007",

doi = "10.1143/PTPS.169.322",

language = "English",

pages = "322--325",

journal = "Progress of Theoretical Physics Supplement",

issn = "0375-9687",

publisher = "Yukawa Institute for Theoretical Physics",

number = "169",

}

Maeda, Y, Ebara, M, Fujimoto, R, Hayashi, T, Inoue, H, Ishisaki, Y, Mori, H, Okada, S, Suzuki, K, Uchiyama, Y, Serlemitsos, PJ, Soong, Y, Chan, KW, Okajima, T, Lehan, JP, Itoh, K, Itoh, A, Yokoyama, Y, Itoh, Y, Nakamura, R, Ishida, M, Hayakawa, A, Inoue, C, Okuma, S, Kubota, R, Suzuki, M, Osawa, T, Yamashita, K, Kunieda, H, Tawara, Y, Ogasaka, Y, Furuzawa, A, Tamura, K, Shibata, R, Haba, Y, Naitou, M, Misaki, K & Iizuka, R 2007, 'On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite', Progress of Theoretical Physics Supplement, no. 169, pp. 322-325. https://doi.org/10.1143/PTPS.169.322

TY - JOUR

T1 - On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite

AU - Maeda, Yoshitomo

AU - Ebara, Masatoshi

AU - Fujimoto, Ryuichi

AU - Hayashi, Takayuki

AU - Inoue, Hirohiko

AU - Ishisaki, Yoshitaka

AU - Mori, Hideyuki

AU - Okada, Shunsaku

AU - Suzuki, Kensuke

AU - Uchiyama, Yasunobu

AU - Serlemitsos, Peter J.

AU - Soong, Yang

AU - Chan, Kai Wing

AU - Okajima, Takashi

AU - Lehan, John P.

AU - Itoh, Kei

AU - Itoh, Akiharu

AU - Yokoyama, Yushi

AU - Itoh, Yumi

AU - Nakamura, Ryoko

AU - Ishida, Manabu

AU - Hayakawa, Akira

AU - Inoue, Chiaki

AU - Okuma, Satoshi

AU - Kubota, Ren

AU - Suzuki, Masaki

AU - Osawa, Takeyuki

AU - Yamashita, Koujun

AU - Kunieda, Hideyo

AU - Tawara, Yuzuru

AU - Ogasaka, Yasushi

AU - Furuzawa, Akihiro

AU - Tamura, Keisuke

AU - Shibata, Ryo

AU - Haba, Yoshito

AU - Naitou, Masataka

AU - Misaki, Kazutami

AU - Iizuka, Ryo

PY - 2007

Y1 - 2007

N2 - We present the in-flight performance of the X-ray telescopes (XRTs) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3′.6, to 1′.8-2′.3 for all four XRT-I modules. Contemporaneous fits of a power law to all the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor & Seward (1974) to within ∼2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations. We also present the thermal wobbling of the satellite. The wobbling causes the alignment error between the XRT-XIS system and the attitude and orbit control system. The wobbling of the alignment is as large as ∼ larcmin. In the currently processed data, the absolute coordinate also has systematic uncertainty of up to ∼ larcmin.

AB - We present the in-flight performance of the X-ray telescopes (XRTs) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of 3′.6, to 1′.8-2′.3 for all four XRT-I modules. Contemporaneous fits of a power law to all the XIS spectra of the Crab Nebula taken at the two standard observing positions (XIS/HXD-default positions) gives a flux consistent with that obtained by Toor & Seward (1974) to within ∼2%. The pre-collimator on the top of each XRT module successfully reduces the intensity of the stray light from the 20′ and 50′-off directions down to the level of pre-flight expectations. We also present the thermal wobbling of the satellite. The wobbling causes the alignment error between the XRT-XIS system and the attitude and orbit control system. The wobbling of the alignment is as large as ∼ larcmin. In the currently processed data, the absolute coordinate also has systematic uncertainty of up to ∼ larcmin.

UR - https://www.scopus.com/pages/publications/41149089812

UR - https://www.scopus.com/inward/citedby.url?scp=41149089812&partnerID=8YFLogxK

U2 - 10.1143/PTPS.169.322

DO - 10.1143/PTPS.169.322

M3 - Article

AN - SCOPUS:41149089812

SN - 0375-9687

SP - 322

EP - 325

JO - Progress of Theoretical Physics Supplement

JF - Progress of Theoretical Physics Supplement

IS - 169

ER -

On-orbit performance of the X-ray telescopes and thermal wobbling of the Suzaku satellite

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