The Ramaty High-Energy Solar Spectroscopic Imager (RHESSI), launched in 2002, observes in some Compton and Chandra wavelengths, but is pointed at the Sun at all times.
Ramaty High-Energy Solar Spectroscopic Imager (RHESSI), opsendt i 2002, foretager observationer i samme bølgelængde som Compton og Chandra wavelengths, men er konstant rettet mod Solen.