OCO-2 Level 0 spacecraft ephemerides V10 (OCO2_Eph) at GES DISC

Version 10 is the current version of the data set. Older versions will no longer be available and are superseded by Version 10.

The Orbiting Carbon Observatory is the first NASA mission designed to collect space-based measurements of atmospheric carbon dioxide with the precision, resolution, and coverage needed to characterize the processes controlling its buildup in the atmosphere. The OCO-2 project uses the LEOStar-2 spacecraft that carries a single instrument. It incorporates three high-resolution spectrometers that make coincident measurements of reflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and in molecular oxygen (O2) A-Band at 0.76 micrometers . Each band has 1016 spectral elements.This product contains the position and velocity of the spacecraft for each orbit. It is generated using the following input data:+ APID 20 telemetry+ Orbit Boundary File.It is essential in generating the Geolocations of the science data.

Data and Resources

Additional Info

Field Value
Maintainer JENNIFER WEI, PH. D
Last Updated July 17, 2025, 14:10 (UTC)
Created March 31, 2025, 13:16 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation OCO-2 Science Team/Michael Gunson, Annmarie Eldering. 2020-03-17. OCO2_Eph. Version 10. OCO-2 Level 0 spacecraft ephemerides V10. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/OCO2_Eph_10.html. Digital Science Data.
creator OCO-2 Science Team/Michael Gunson, Annmarie Eldering
data-presentation-form Digital Science Data
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_logo.jpg
harvest_object_id e0790476-0e10-4fcc-942b-596982c0ee4b
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1685783951-GES_DISC
issued 2020-01-17
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1685783951-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2020-01-17
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name OCO2_Eph
source_datajson_identifier true
source_hash 2836e0517b0270327bb6a05f4b02c71d0bfa679175f792dd045de10d0d3e6822
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 2019-11-30T00:00:00Z/2022-01-17T00:00:00Z
theme {OCO-2,geospatial}