Measurements and Applications
Measurement of total solar irradiance directly traceable to SI units with an absolute accuracy of 0.035% and relative accuracy of 0.002% per year.
Full Name
Total Solar and Spectral Irradiance Sensor 1 - Total Irradiance Monitor
Status
Operational
Instrument Agencies
Maturity
Instrument Type
Earth radiation budget radiometers 
Geometry
Instrument Technology
Solar irradiance monitor
Sampling
Imaging
Data Access
Open Access
Data Format
ASCII, HDF-5
Swath
Looks at the sun every orbit, providing 15 measurements per day.
Accuracy
Estimated uncertainties ~160 ppm.
TSIS-1-on-ISS - International Space Station/Total and Spectral solar Irradiance Sensor (2017 - 2026) |