THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - TSIS-1 -
Full Name Total Solar and Spectral Irradiance Sensor 1 Status Being developed
Instrument Agencies NOAA, NASA Maturity Medium Heritage
Instrument Type Earth radiation budget radiometers Geometry Cross-track scanning
Instrument Technology Solar irradiance monitor Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications 0.2 - 2 µm solar spectral irradiance monitor and total spectra monitor
Resolution Summary
Swath Summary
Accuracy Summary 1.5 w/m2
Waveband Summary UV - SWIR: 0.2 - 2 µm and total spectra
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
Instrument Measurements
CategoryParameterAccuracy
Radiation budgetDownwelling (Incoming) solar radiation at TOA 
Upwelling (Outgoing) long-wave radiation at TOA 
Instrument Missions
NPOESS-1 - National Polar-orbiting Operational Environmental Satellite System - 1 (2013 - 2020)
TSIS-1-on-ISS - International Space Station/Total Solar and Spectral Irradiance Sensor Mission (2018 - 2023)
NPOESS-6 - National Polar-orbiting Operational Environmental Satellite System - 4 (2019 - 2024)
Free Flyer-2 - JPSS Free Flyer-2 (2021 - 2026)
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