Technology Specifications

Mission Specification

The XRISM spacecraft will be launched on an H-IIA rocket to low-Earth orbit (an altitude of 550 km). Resolve uses liquid helium to cool down the X-ray spectrometer. The liquid helium will evaporate in 3 years. Therefore, the design life of the instrument is 3 years, though it is possible to continue to observe afterwards using mechanical coolers.

Mission instruments
Resolve (Soft X-ray Spectrometer) / Xtend (Soft X-ray Imager)
2.3 t
Design life
3 years
Altitude 550 +/- 50 km   Inclination 31 degree