CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- TSIS-1/TIM
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Full Name
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Total Solar and Spectral Irradiance Sensor 1 - Total Irradiance Monitor
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Status
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Operational
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Instrument Agencies
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NASA , NOAA
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Maturity
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Instrument Type
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Earth radiation budget radiometers 
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Geometry
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Instrument Technology
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Solar irradiance monitor
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Sampling
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Imaging
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Data Access
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Open Access
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Data Format
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ASCII, HDF-5
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Measurements and Applications
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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.
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Resolution Summary
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Swath Summary
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Looks at the sun every orbit, providing 15 measurements per day.
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Accuracy Summary
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Estimated uncertainties ~160 ppm.
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Waveband Summary
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Total spectra
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Instrument Measurements
Measurements Overview
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Instrument Missions
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