Analysis technique for HAYABUSA XRS observed X-ray sources

Abstract

X-ray fluorescence spectrometer (XRS) onboard HAYABUSA (MUSES-C) spacecraft that was launched by the fifth M-V launch vehicle on 9 May 2003. The XRS has plans to observe supernova remnants (SNR), active galactic nuclei (AGN) and cosmic X-ray backgrounds for in-flight calibration and scientific observation during the transfer and return phase. When HAYABUSA spacecraft performed tests of the ion electric propulsion system (IES) and its heater control system, the XRS observed spectra were noisy. This study shows method of reducing heat noise.