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The Orbiting Carbon Observatory – 3 (OCO-3) is a NASA Earth System Science Program payload designed and built by the Jet Propulsion Laboratory. The mission concept is to incorporate the OCO-2 mission’s spare grating spectrometer instrument into an ISS-compatible, external payload for measuring CO2 from the station’s Low Earth Orbit. The payload was transported to ISS via the Space X Dragon and robotically installed on the Japanese Experiment Module’s Exposed Facility (JEM-EF). The mission is collecting science data for at least three years before it is robotically removed and disposed.

OCO-3 Payload

OCO-3 at JEM External Facility Site 3

For more information about the International Space Station, please go to ISS.
For more information about the Japanese Experiment Module's Exposed Facility, please go to Japanese Experiment Module - Exposed Facility (JEM-EF)


Orbiting Carbon Observatory-2: Mission Overview


OCO-2 Animation: In Earth Orbit

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