THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Spectrometer (OCO-3) Status Operational
Instrument Agencies NASA, JAXA Maturity
Instrument Type Atmospheric chemistry Geometry Steerable viewing
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format HDF
Measurements and Applications Global measurements of atmospheric CO2 needed to describe the variability of CO2 sources and sinks.
Resolution Summary 2.25 km downtrack by 0.7 km cross-track
Swath Summary Soundings = 4.5 km2 in area during Nadir Observation
Accuracy Summary provide single sounding estimates of XCO2 with one sigma errors of <= 2 ppm
Waveband Summary 0.765 µm, 1.61 µm, 2.06 µm
SWIR (~1.3 µm - ~3.0 µm)
Instrument Measurements
Measurements Overview
Trace gases (excluding ozone)CO2 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Carbon Dioxide, Methane and other Greenhouse gases click here click here search ECV Inventory records
Instrument Missions
OCO-3-on-ISS - ISS/Orbiting Carbon Observatory-3 (2019 - 2022)
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