The Solar Radiation and Climate Experiment (SORCE), launched in 2003, currently measuring total solar irradiance from space, observed a dip in the irradiance during intense solar flare activity in September 2017. TSIS-1 will continue these observations with one-third the uncertainty of its predecessor.
Full article in NASA Global Climate Change: https://climate.nasa.gov/news/2659/four-decades-and-counting-new-nasa-instrument-continues-measuring-solar-energy-input-to-earth/