I'm actually interested in cases of cross-discipline data re-use.
I know that the SOHO/LASCO coronographs are used for comet finding, that solar telescopes were used to get information about Venus's atmosphere during its solar transit in 2004, and STEREO were rolled to try to look at L4 and L5.
But do the night-time or planetary communities use the images for anything else? For example, does STEREO's separation from Earth make the coronographs or heliospheric imagers useful for any triangulation, or are the exposure times or spatial resolution problematic, or is the relative separation insignificant in the grand scheme of things?
Update: I'm not interested in space weather or for warnings about when to put satellites into 'safe mode'... I'm more interested if the low-level telescope data is useful.