In-orbit calibration status of the Insight-HXMT

Xiaobo Li; Liming Song; Xufang Li; Ying Tan; Yanji Yang; Mingyu Ge

doi:10.1117/12.2315166

6 July 2018 In-orbit calibration status of the Insight-HXMT

Xiaobo Li, Liming Song, Xufang Li, Ying Tan, Yanji Yang, Mingyu Ge

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 1069969 (2018) https://doi.org/10.1117/12.2315166
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

As China’s first X-ray astronomical satellite, Insight-HXMT (Hard X-ray Modulation Telescope) successfully launched on Jun 15, 2017. It performs timing and spectral studies of bright sources to determine their physical parameters. HXMT carries three main payloads onboard: the High Energy X-ray telescope (HE, 20-250 keV, NaI(Tl)/CsI(Na)), the Medium Energy X-ray Telescope (ME, 5-30 keV, Si-Pin) and the Low Energy X-ray telescope (LE, 1-15 keV, SCD). In orbit, we have used the radioactive sources, activated lines, the fluorescence line, and Cas A to calibrate the gain and energy resolution of the payloads. The Crab pulsar was adopted as the primary effective area calibrator and an empirical function was found to modify the simulated effective areas. The absolute timing accuracy of HXMT is about 100us from the TOA of Crab Pulsar.

Citation Download Citation

Xiaobo Li, Liming Song, Xufang Li, Ying Tan, Yanji Yang, and Mingyu Ge "In-orbit calibration status of the Insight-HXMT", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 1069969 (6 July 2018); https://doi.org/10.1117/12.2315166

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