Abstract
We have surveyed previous spaceborne calibrations, and present results of new cross‐calibrations of the X‐ray solar instruments: SMART‐1 XSM, GOES, RHESSI and Messenger XRS. We use XSM as the baseline instrument, and establish its ground, in‐flight and cross‐calibration status. Based on these calibrations, we show the relative importance of having an on‐board in‐flight calibration source for the energy scale with the technical twin instruments XRS and XSM. An observed energy scale drift of 168 eV (0.9%) influenced final fluxes by 25–35% in the 2–5 keV band. An ideal generic in‐flight calibration source is discussed in view of the XSM‐XRS simulation and the in‐flight calibration of the microwave CMB instruments in particular.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
