L1 in particular is perfect for measuring the solar wind and Coronal Mass Ejections as an early warning system [0]. DSCOVR (the probe that took this photo) is t

L1 in particular is perfect for measuring the solar wind and Coronal Mass Ejections as an early warning system [0]. DSCOVR (the probe that took this photo) is the successor to ACE which is used to predict Auroras amongst other things [1]. This data is released by NOAA as a forecast [2]. I built an Aurora simulator with a similar API [3], but I think that mainly uses magnetometers. [0] https://en.wikipedia.org/wiki/Lagrangian_point#Spacecraft_at_Sun.E2.80.93Earth_L1 https://en.wikipedia.org/wiki/Lagrangian_point#Spacecraft_at... [1] http://www.nesdis.noaa.gov/DSCOVR http://www.nesdis.noaa.gov/DSCOVR [2] http://www.swpc.noaa.gov/products/aurora-30-minute-forecast http://www.swpc.noaa.gov/products/aurora-30-minute-forecast [3] https://unop.uk/dev/led-strip-aurora-alerts https://unop.uk/dev/led-strip-aurora-alerts