CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- SWIR Fizeau interferometer
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Full Name
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GESat GEN1 SWIR Fizeau interferometer
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Status
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Being developed
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Instrument Agencies
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Absolut Sensing
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Maturity
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Low Heritage
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Instrument Type
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Atmospheric chemistry 
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Geometry
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Push-broom scanning
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Instrument Technology
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High-resolution nadir-scanning SW spectrometer
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Sampling
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Imaging
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Data Access
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Data Format
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Measurements and Applications
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SWIR sensor based on a Fizeau interferometer to detect and quantify facility-scale CH4 emissions
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Resolution Summary
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50 m GSD
[Best Resolution: 50m]
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Swath Summary
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12 to 25 km FOV @ Nadir, 250+ km pointing from Nadir
[Max Swath: 250 km]
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Accuracy Summary
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100 ppb XCH4 and 50 kg/h emission rates in standard wind conditions
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Waveband Summary
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Narrow band at 1.64 µm
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Instrument Measurements
Measurements Overview
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Instrument Missions
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