X-level Solar Flare of 2003 (X28+)

[ropunch04]

Regarding the X28+ solar flare event on 2003/11/04, what data source (satellite, etc.) recorded the Movie capturing the flare? To my knowledge, SDO was launched in 2010, so did it have a predecessor? 

Thanks,

 

[Marcel de Bont]

SOHO did. You can watch a movie of the flare and CME here: https://www.spaceweatherlive.com/en/archive/2003/11/04/xray.html Click on the play button in the table beneath the graph.