Data from the initial operations of the CSIM technology demonstration mission has just been released, it is available here. These solar spectral irradiance (SSI) observations occurred from March 27, 2019 – November 12, 2019. Over this time approximately 240 photodiode and 20 ESR spectra were taken.
The CSIM instrument measures the daily top-of-the-atmosphere SSI from 200 nm to 2800 nm (>97% of the total solar irradiance). All SSI data products are reported at a mean solar distance of 1-AU and zero relative line-of-sight velocity with respect to the Sun.