On-orbit Operations and Offline Data Processing of CALET onboard the ISS
Y. Asaoka, S. Ozawa, S. 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, H. Fuke, T.G. Guzik, T. Hams

TL;DR
CALET onboard the ISS has been collecting high-energy cosmic ray data since 2015, utilizing specialized operations and data processing to enable long-term astrophysical observations and analysis.
Contribution
This paper details the on-orbit operations, data collection, and processing methods of CALET, highlighting its capabilities for long-duration cosmic ray observations from the ISS.
Findings
Accumulated 689 days of observation data by August 2017.
Collected nearly 450 million high-energy events.
Expected to yield significant scientific results over five years.
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. Scientific operations using CALET are planned at WCOC, taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control…
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