TCTE Total Solar Irradiance Plots

This page shows recent total solar irradiance activity as measured by the TIM instrument onboard the TCTE spacecraft. The plots shown here are updated automatically on a daily basis, shortly after data are produced by the TCTE data processing system. To access the total solar irradiance data, please visit the TCTE TSI web page. Additional TSI plots and comparisons to other TSI instruments  are available via Greg Kopp’s TSI page.

24 Hour Averaged Data

Full TCTE Mission
Most Recent 3 Months

6 Hourly Averaged Data

Full TCTE Mission
Most Recent 3 Months