TSIS-1 SIM V07 Solar Spectral Irradiance

NASA's Total and Spectral Solar Irradiance Sensor -1 (TSIS-1) operates on the International Space Station. TSIS-1 provides absolute measurements of the total solar irradiance (TSI) and spectral solar irradiance (SSI), important for accurate scientific models of climate change and solar variability. TSIS-1 is comprised of two instruments, the Total Irradiance Monitor (TIM), and the Spectral Irradiance Monitor (SIM).

This repository archives Version 7 (V07) of the TSIS-1 SIM Level 3 (L3) data release, and contains SSI in two cadences, 12-hour and 24-hour. The TSIS-1 SIM L3 V07 data release contains data from 14 March 2018 to 18 March 2022. V07 L3 data release was halted on 18 March 2022 due to an anomaly of the sun-pointing sensor (HFSS-B), which offset pointing by ~1 arcminute. TSIS-1 SIM V08 contains a wavelength-dependent correction for data from 19 March 2022 to 19 May 2022, when sun-pointing was switched to the HFSS-A sun-sensor. See the V08 release notes at https://lasp.colorado.edu/home/tsis/data/ssi-data/sim-ssi-release-notes/ for further details.

Data is archived in ASCII, and IDL SAVfile format. See the attached V07 release notes for further details.