CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- Spectrometer (OCO-3)
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Full Name
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Spectrometer (OCO-3)
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Status
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Operational
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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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Atmospheric chemistry 
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Geometry
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Steerable viewing
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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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Sounding
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Data Access
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Open Access
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Data Format
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HDF-5, NetCDF
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Measurements and Applications
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Global measurements of atmospheric CO2 needed to describe the variability of CO2 sources and sinks.
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Resolution Summary
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2.25 km downtrack by 0.7 km cross-track
[Best Resolution: 2250m]
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Swath Summary
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Soundings = 4.5 km2 in area during Nadir Observation
[Max Swath: 4 km]
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Accuracy Summary
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provide single sounding estimates of XCO2 with one sigma errors of <= 2 ppm
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Waveband Summary
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0.765 µm, 1.61 µm, 2.06 µm
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Instrument Measurements
Measurements Overview
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Instrument Missions
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