CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- TIRS (PREFIRE)
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Full Name
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Thermal Infrared Spectrometer
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Status
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Being developed
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Instrument Agencies
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NASA
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Maturity
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Instrument Type
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Hyperspectral imagers 
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Geometry
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Nadir-viewing
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Instrument Technology
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High-resolution nadir-scanning IR spectrometer
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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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NetCDF-4
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Measurements and Applications
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Pushbroom spectroradiometric imagers in highly inclined orbits to provide spectral fluxes, column-water vapor, surface emissivity and broadband radiances over majority of thermal wavelengths.
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Resolution Summary
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10-15 km
[Best Resolution: 10m]
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Swath Summary
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Nadir Pushbroom, perpendicular to orbit track, 8 scenes with gaps
[Max Swath: 300 km]
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Accuracy Summary
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NEDT (300 K) 5-15 mm: 1.5 K/channel > 15 mm: 1.5 K aggregate
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Waveband Summary
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5 - 54 µm, 0.86 µm sampling
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Instrument Measurements
Measurements Overview
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Instrument Missions
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