SOLERA-drift generates a plot showing the time evolution of the daylight correlation solar flare coefficient. The plot is generated in UPC once per 30 s after which it is updated to this page.

Values of the daylight correlation solar flare coefficient exceeding 0.025 TECU can be associated with flare activity.
STD values exceeding one third of the daylight correlation solar flare coefficient values are a signal of increased uncertainty in the estimated flux rate.
The time axis in these plots is given as GPS time, which is 18 s ahead of UTC (year 2018).

Units: 1 TECU = 1016 el/m2