Full halo CME’s are unusual. This one exploded off of the *farside of the sun. Perhaps I can find out how many of these have occurred in the last ten years because this one may be very significant (in my book). I have been looking for something unusual to occur with the sun in March.
*(The Farside. Does anyone remember this wonderful, kooky comic series by Gary Larson?? I still miss it even though it was ended in 1995!!)