On-orbit operations and offline data processing of CALET onboard the ISS

Yoichi Asaoka, Shunsuke Ozawa, Shoji Torii, O. Adriani, Y. Akaike, K. Asano, M. G. Bagliesi, G. Bigongiari, W. R. Binns, S. Bonechi, M. Bongi, P. Brogi, J. H. Buckley, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, V. Di Felice, K. Ebisawa & 71 others H. Fuke, T. G. Guzik, T. Hams, M. Hareyama, Nobuyuki Hasebe, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, A. Javaid, K. Kasahara, Jun Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, H. S. Krawczynski, J. F. Krizmanic, S. Kuramata, T. Lomtadze, P. Maestro, P. S. Marrocchesi, A. M. Messineo, J. W. Mitchell, S. Miyake, K. Mizutani, A. A. Moiseev, K. Mori, M. Mori, N. Mori, Holger Martin Motz, K. Munakata, H. Murakami, S. Nakahira, J. Nishimura, G. A. de Nolfo, S. Okuno, J. F. Ormes, L. Pacini, F. Palma, P. Papini, A. V. Penacchioni, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, R. Sparvoli, P. Spillantini, F. Stolzi, I. Takahashi, M. Takayanagi, M. Takita, T. Tamura, N. Tateyama, T. Terasawa, H. Tomida, Y. Tsunesada, Y. Uchihori, S. Ueno, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, T. Yuda

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The CALorimetric Electron Telescope (CALET), launched for installation on the International Space Station (ISS) in August, 2015, has been accumulating scientific data since October, 2015. CALET is intended to perform long-duration observations of high-energy cosmic rays onboard the ISS. CALET directly measures the cosmic-ray electron spectrum in the energy range of 1 GeV to 20 TeV with a 2% energy resolution above 30 GeV. In addition, the instrument can measure the spectrum of gamma rays well into the TeV range, and the spectra of protons and nuclei up to a PeV. In order to operate the CALET onboard ISS, JAXA Ground Support Equipment (JAXA-GSE) and the Waseda CALET Operations Center (WCOC) have been established at JAXA and Waseda University, respectively. Scientific operations using CALET are planned at WCOC, taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control the CALET observation modes on orbit. Calibration data acquisition by, for example, recording pedestal and penetrating particle events, a low-energy electron trigger mode operating at high geomagnetic latitude, a low-energy gamma-ray trigger mode operating at low geomagnetic latitude, and an ultra heavy trigger mode, are scheduled around the ISS orbit while maintaining maximum exposure to high-energy electrons and other high-energy shower events by always having the high-energy trigger mode active. The WCOC also prepares and distributes CALET flight data to collaborators in Italy and the United States. As of August 31, 2017, the total observation time is 689 days with a live time fraction of the total time of ∼ 84%. Nearly 450 million events are collected with a high-energy (E > 10 GeV) trigger. In addition, calibration data acquisition and low-energy trigger modes, as well as an ultra-heavy trigger mode, are consistently scheduled around the ISS orbit. By combining all operation modes with the excellent-quality on-orbit data collected thus far, it is expected that a five-year observation period will provide a wealth of new and interesting results.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalAstroparticle Physics
Volume100
DOIs
Publication statusPublished - 2018 Jul 1

Fingerprint

particle telescopes
International Space Station
orbits
actuators
geomagnetic latitude
energy
data acquisition
cosmic rays
ground support equipment
corpuscular radiation
gamma rays
commands
showers
rigidity
Italy
high energy electrons
installing
cut-off
recording
flight

Keywords

  • CALET
  • Calorimeter
  • Cosmic-ray electrons
  • Direct measurement
  • International space station

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

On-orbit operations and offline data processing of CALET onboard the ISS. / Asaoka, Yoichi; Ozawa, Shunsuke; Torii, Shoji; Adriani, O.; Akaike, Y.; Asano, K.; Bagliesi, M. G.; Bigongiari, G.; Binns, W. R.; Bonechi, S.; Bongi, M.; Brogi, P.; Buckley, J. H.; Cannady, N.; Castellini, G.; Checchia, C.; Cherry, M. L.; Collazuol, G.; Di Felice, V.; Ebisawa, K.; Fuke, H.; Guzik, T. G.; Hams, T.; Hareyama, M.; Hasebe, Nobuyuki; Hibino, K.; Ichimura, M.; Ioka, K.; Ishizaki, W.; Israel, M. H.; Javaid, A.; Kasahara, K.; Kataoka, Jun; Kataoka, R.; Katayose, Y.; Kato, C.; Kawanaka, N.; Kawakubo, Y.; Krawczynski, H. S.; Krizmanic, J. F.; Kuramata, S.; Lomtadze, T.; Maestro, P.; Marrocchesi, P. S.; Messineo, A. M.; Mitchell, J. W.; Miyake, S.; Mizutani, K.; Moiseev, A. A.; Mori, K.; Mori, M.; Mori, N.; Motz, Holger Martin; Munakata, K.; Murakami, H.; Nakahira, S.; Nishimura, J.; de Nolfo, G. A.; Okuno, S.; Ormes, J. F.; Pacini, L.; Palma, F.; Papini, P.; Penacchioni, A. V.; Rauch, B. F.; Ricciarini, S. B.; Sakai, K.; Sakamoto, T.; Sasaki, M.; Shimizu, Y.; Shiomi, A.; Sparvoli, R.; Spillantini, P.; Stolzi, F.; Takahashi, I.; Takayanagi, M.; Takita, M.; Tamura, T.; Tateyama, N.; Terasawa, T.; Tomida, H.; Tsunesada, Y.; Uchihori, Y.; Ueno, S.; Vannuccini, E.; Wefel, J. P.; Yamaoka, K.; Yanagita, S.; Yoshida, A.; Yoshida, K.; Yuda, T.

In: Astroparticle Physics, Vol. 100, 01.07.2018, p. 29-37.

Research output: Contribution to journalArticle

Asaoka, Y, Ozawa, S, Torii, S, Adriani, O, Akaike, Y, Asano, K, Bagliesi, MG, Bigongiari, G, Binns, WR, Bonechi, S, Bongi, M, Brogi, P, Buckley, JH, Cannady, N, Castellini, G, Checchia, C, Cherry, ML, Collazuol, G, Di Felice, V, Ebisawa, K, Fuke, H, Guzik, TG, Hams, T, Hareyama, M, Hasebe, N, Hibino, K, Ichimura, M, Ioka, K, Ishizaki, W, Israel, MH, Javaid, A, Kasahara, K, Kataoka, J, Kataoka, R, Katayose, Y, Kato, C, Kawanaka, N, Kawakubo, Y, Krawczynski, HS, Krizmanic, JF, Kuramata, S, Lomtadze, T, Maestro, P, Marrocchesi, PS, Messineo, AM, Mitchell, JW, Miyake, S, Mizutani, K, Moiseev, AA, Mori, K, Mori, M, Mori, N, Motz, HM, Munakata, K, Murakami, H, Nakahira, S, Nishimura, J, de Nolfo, GA, Okuno, S, Ormes, JF, Pacini, L, Palma, F, Papini, P, Penacchioni, AV, Rauch, BF, Ricciarini, SB, Sakai, K, Sakamoto, T, Sasaki, M, Shimizu, Y, Shiomi, A, Sparvoli, R, Spillantini, P, Stolzi, F, Takahashi, I, Takayanagi, M, Takita, M, Tamura, T, Tateyama, N, Terasawa, T, Tomida, H, Tsunesada, Y, Uchihori, Y, Ueno, S, Vannuccini, E, Wefel, JP, Yamaoka, K, Yanagita, S, Yoshida, A, Yoshida, K & Yuda, T 2018, 'On-orbit operations and offline data processing of CALET onboard the ISS' Astroparticle Physics, vol. 100, pp. 29-37. https://doi.org/10.1016/j.astropartphys.2018.02.010
Asaoka, Yoichi ; Ozawa, Shunsuke ; Torii, Shoji ; Adriani, O. ; Akaike, Y. ; Asano, K. ; Bagliesi, M. G. ; Bigongiari, G. ; Binns, W. R. ; Bonechi, S. ; Bongi, M. ; Brogi, P. ; Buckley, J. H. ; Cannady, N. ; Castellini, G. ; Checchia, C. ; Cherry, M. L. ; Collazuol, G. ; Di Felice, V. ; Ebisawa, K. ; Fuke, H. ; Guzik, T. G. ; Hams, T. ; Hareyama, M. ; Hasebe, Nobuyuki ; Hibino, K. ; Ichimura, M. ; Ioka, K. ; Ishizaki, W. ; Israel, M. H. ; Javaid, A. ; Kasahara, K. ; Kataoka, Jun ; Kataoka, R. ; Katayose, Y. ; Kato, C. ; Kawanaka, N. ; Kawakubo, Y. ; Krawczynski, H. S. ; Krizmanic, J. F. ; Kuramata, S. ; Lomtadze, T. ; Maestro, P. ; Marrocchesi, P. S. ; Messineo, A. M. ; Mitchell, J. W. ; Miyake, S. ; Mizutani, K. ; Moiseev, A. A. ; Mori, K. ; Mori, M. ; Mori, N. ; Motz, Holger Martin ; Munakata, K. ; Murakami, H. ; Nakahira, S. ; Nishimura, J. ; de Nolfo, G. A. ; Okuno, S. ; Ormes, J. F. ; Pacini, L. ; Palma, F. ; Papini, P. ; Penacchioni, A. V. ; Rauch, B. F. ; Ricciarini, S. B. ; Sakai, K. ; Sakamoto, T. ; Sasaki, M. ; Shimizu, Y. ; Shiomi, A. ; Sparvoli, R. ; Spillantini, P. ; Stolzi, F. ; Takahashi, I. ; Takayanagi, M. ; Takita, M. ; Tamura, T. ; Tateyama, N. ; Terasawa, T. ; Tomida, H. ; Tsunesada, Y. ; Uchihori, Y. ; Ueno, S. ; Vannuccini, E. ; Wefel, J. P. ; Yamaoka, K. ; Yanagita, S. ; Yoshida, A. ; Yoshida, K. ; Yuda, T. / On-orbit operations and offline data processing of CALET onboard the ISS. In: Astroparticle Physics. 2018 ; Vol. 100. pp. 29-37.
@article{979e3d8aed684a3bbff4bf734aceed47,
title = "On-orbit operations and offline data processing of CALET onboard the ISS",
abstract = "The CALorimetric Electron Telescope (CALET), launched for installation on the International Space Station (ISS) in August, 2015, has been accumulating scientific data since October, 2015. CALET is intended to perform long-duration observations of high-energy cosmic rays onboard the ISS. CALET directly measures the cosmic-ray electron spectrum in the energy range of 1 GeV to 20 TeV with a 2{\%} energy resolution above 30 GeV. In addition, the instrument can measure the spectrum of gamma rays well into the TeV range, and the spectra of protons and nuclei up to a PeV. In order to operate the CALET onboard ISS, JAXA Ground Support Equipment (JAXA-GSE) and the Waseda CALET Operations Center (WCOC) have been established at JAXA and Waseda University, respectively. Scientific operations using CALET are planned at WCOC, taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control the CALET observation modes on orbit. Calibration data acquisition by, for example, recording pedestal and penetrating particle events, a low-energy electron trigger mode operating at high geomagnetic latitude, a low-energy gamma-ray trigger mode operating at low geomagnetic latitude, and an ultra heavy trigger mode, are scheduled around the ISS orbit while maintaining maximum exposure to high-energy electrons and other high-energy shower events by always having the high-energy trigger mode active. The WCOC also prepares and distributes CALET flight data to collaborators in Italy and the United States. As of August 31, 2017, the total observation time is 689 days with a live time fraction of the total time of ∼ 84{\%}. Nearly 450 million events are collected with a high-energy (E > 10 GeV) trigger. In addition, calibration data acquisition and low-energy trigger modes, as well as an ultra-heavy trigger mode, are consistently scheduled around the ISS orbit. By combining all operation modes with the excellent-quality on-orbit data collected thus far, it is expected that a five-year observation period will provide a wealth of new and interesting results.",
keywords = "CALET, Calorimeter, Cosmic-ray electrons, Direct measurement, International space station",
author = "Yoichi Asaoka and Shunsuke Ozawa and Shoji Torii and O. Adriani and Y. Akaike and K. Asano and Bagliesi, {M. G.} and G. Bigongiari and Binns, {W. R.} and S. Bonechi and M. Bongi and P. Brogi and Buckley, {J. H.} and N. Cannady and G. Castellini and C. Checchia and Cherry, {M. L.} and G. Collazuol and {Di Felice}, V. and K. Ebisawa and H. Fuke and Guzik, {T. G.} and T. Hams and M. Hareyama and Nobuyuki Hasebe and K. Hibino and M. Ichimura and K. Ioka and W. Ishizaki and Israel, {M. H.} and A. Javaid and K. Kasahara and Jun Kataoka and R. Kataoka and Y. Katayose and C. Kato and N. Kawanaka and Y. Kawakubo and Krawczynski, {H. S.} and Krizmanic, {J. F.} and S. Kuramata and T. Lomtadze and P. Maestro and Marrocchesi, {P. S.} and Messineo, {A. M.} and Mitchell, {J. W.} and S. Miyake and K. Mizutani and Moiseev, {A. A.} and K. Mori and M. Mori and N. Mori and Motz, {Holger Martin} and K. Munakata and H. Murakami and S. Nakahira and J. Nishimura and {de Nolfo}, {G. A.} and S. Okuno and Ormes, {J. F.} and L. Pacini and F. Palma and P. Papini and Penacchioni, {A. V.} and Rauch, {B. F.} and Ricciarini, {S. B.} and K. Sakai and T. Sakamoto and M. Sasaki and Y. Shimizu and A. Shiomi and R. Sparvoli and P. Spillantini and F. Stolzi and I. Takahashi and M. Takayanagi and M. Takita and T. Tamura and N. Tateyama and T. Terasawa and H. Tomida and Y. Tsunesada and Y. Uchihori and S. Ueno and E. Vannuccini and Wefel, {J. P.} and K. Yamaoka and S. Yanagita and A. Yoshida and K. Yoshida and T. Yuda",
year = "2018",
month = "7",
day = "1",
doi = "10.1016/j.astropartphys.2018.02.010",
language = "English",
volume = "100",
pages = "29--37",
journal = "Astroparticle Physics",
issn = "0927-6505",
publisher = "Elsevier",

}

TY - JOUR

T1 - On-orbit operations and offline data processing of CALET onboard the ISS

AU - Asaoka, Yoichi

AU - Ozawa, Shunsuke

AU - Torii, Shoji

AU - Adriani, O.

AU - Akaike, Y.

AU - Asano, K.

AU - Bagliesi, M. G.

AU - Bigongiari, G.

AU - Binns, W. R.

AU - Bonechi, S.

AU - Bongi, M.

AU - Brogi, P.

AU - Buckley, J. H.

AU - Cannady, N.

AU - Castellini, G.

AU - Checchia, C.

AU - Cherry, M. L.

AU - Collazuol, G.

AU - Di Felice, V.

AU - Ebisawa, K.

AU - Fuke, H.

AU - Guzik, T. G.

AU - Hams, T.

AU - Hareyama, M.

AU - Hasebe, Nobuyuki

AU - Hibino, K.

AU - Ichimura, M.

AU - Ioka, K.

AU - Ishizaki, W.

AU - Israel, M. H.

AU - Javaid, A.

AU - Kasahara, K.

AU - Kataoka, Jun

AU - Kataoka, R.

AU - Katayose, Y.

AU - Kato, C.

AU - Kawanaka, N.

AU - Kawakubo, Y.

AU - Krawczynski, H. S.

AU - Krizmanic, J. F.

AU - Kuramata, S.

AU - Lomtadze, T.

AU - Maestro, P.

AU - Marrocchesi, P. S.

AU - Messineo, A. M.

AU - Mitchell, J. W.

AU - Miyake, S.

AU - Mizutani, K.

AU - Moiseev, A. A.

AU - Mori, K.

AU - Mori, M.

AU - Mori, N.

AU - Motz, Holger Martin

AU - Munakata, K.

AU - Murakami, H.

AU - Nakahira, S.

AU - Nishimura, J.

AU - de Nolfo, G. A.

AU - Okuno, S.

AU - Ormes, J. F.

AU - Pacini, L.

AU - Palma, F.

AU - Papini, P.

AU - Penacchioni, A. V.

AU - Rauch, B. F.

AU - Ricciarini, S. B.

AU - Sakai, K.

AU - Sakamoto, T.

AU - Sasaki, M.

AU - Shimizu, Y.

AU - Shiomi, A.

AU - Sparvoli, R.

AU - Spillantini, P.

AU - Stolzi, F.

AU - Takahashi, I.

AU - Takayanagi, M.

AU - Takita, M.

AU - Tamura, T.

AU - Tateyama, N.

AU - Terasawa, T.

AU - Tomida, H.

AU - Tsunesada, Y.

AU - Uchihori, Y.

AU - Ueno, S.

AU - Vannuccini, E.

AU - Wefel, J. P.

AU - Yamaoka, K.

AU - Yanagita, S.

AU - Yoshida, A.

AU - Yoshida, K.

AU - Yuda, T.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The CALorimetric Electron Telescope (CALET), launched for installation on the International Space Station (ISS) in August, 2015, has been accumulating scientific data since October, 2015. CALET is intended to perform long-duration observations of high-energy cosmic rays onboard the ISS. CALET directly measures the cosmic-ray electron spectrum in the energy range of 1 GeV to 20 TeV with a 2% energy resolution above 30 GeV. In addition, the instrument can measure the spectrum of gamma rays well into the TeV range, and the spectra of protons and nuclei up to a PeV. In order to operate the CALET onboard ISS, JAXA Ground Support Equipment (JAXA-GSE) and the Waseda CALET Operations Center (WCOC) have been established at JAXA and Waseda University, respectively. Scientific operations using CALET are planned at WCOC, taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control the CALET observation modes on orbit. Calibration data acquisition by, for example, recording pedestal and penetrating particle events, a low-energy electron trigger mode operating at high geomagnetic latitude, a low-energy gamma-ray trigger mode operating at low geomagnetic latitude, and an ultra heavy trigger mode, are scheduled around the ISS orbit while maintaining maximum exposure to high-energy electrons and other high-energy shower events by always having the high-energy trigger mode active. The WCOC also prepares and distributes CALET flight data to collaborators in Italy and the United States. As of August 31, 2017, the total observation time is 689 days with a live time fraction of the total time of ∼ 84%. Nearly 450 million events are collected with a high-energy (E > 10 GeV) trigger. In addition, calibration data acquisition and low-energy trigger modes, as well as an ultra-heavy trigger mode, are consistently scheduled around the ISS orbit. By combining all operation modes with the excellent-quality on-orbit data collected thus far, it is expected that a five-year observation period will provide a wealth of new and interesting results.

AB - The CALorimetric Electron Telescope (CALET), launched for installation on the International Space Station (ISS) in August, 2015, has been accumulating scientific data since October, 2015. CALET is intended to perform long-duration observations of high-energy cosmic rays onboard the ISS. CALET directly measures the cosmic-ray electron spectrum in the energy range of 1 GeV to 20 TeV with a 2% energy resolution above 30 GeV. In addition, the instrument can measure the spectrum of gamma rays well into the TeV range, and the spectra of protons and nuclei up to a PeV. In order to operate the CALET onboard ISS, JAXA Ground Support Equipment (JAXA-GSE) and the Waseda CALET Operations Center (WCOC) have been established at JAXA and Waseda University, respectively. Scientific operations using CALET are planned at WCOC, taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control the CALET observation modes on orbit. Calibration data acquisition by, for example, recording pedestal and penetrating particle events, a low-energy electron trigger mode operating at high geomagnetic latitude, a low-energy gamma-ray trigger mode operating at low geomagnetic latitude, and an ultra heavy trigger mode, are scheduled around the ISS orbit while maintaining maximum exposure to high-energy electrons and other high-energy shower events by always having the high-energy trigger mode active. The WCOC also prepares and distributes CALET flight data to collaborators in Italy and the United States. As of August 31, 2017, the total observation time is 689 days with a live time fraction of the total time of ∼ 84%. Nearly 450 million events are collected with a high-energy (E > 10 GeV) trigger. In addition, calibration data acquisition and low-energy trigger modes, as well as an ultra-heavy trigger mode, are consistently scheduled around the ISS orbit. By combining all operation modes with the excellent-quality on-orbit data collected thus far, it is expected that a five-year observation period will provide a wealth of new and interesting results.

KW - CALET

KW - Calorimeter

KW - Cosmic-ray electrons

KW - Direct measurement

KW - International space station

UR - http://www.scopus.com/inward/record.url?scp=85043486168&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85043486168&partnerID=8YFLogxK

U2 - 10.1016/j.astropartphys.2018.02.010

DO - 10.1016/j.astropartphys.2018.02.010

M3 - Article

VL - 100

SP - 29

EP - 37

JO - Astroparticle Physics

JF - Astroparticle Physics

SN - 0927-6505

ER -