OCO-3 Level 0 spacecraft attitude and ephemeris data VEarlyR (OCO3_L1aAE) at GES DISC

The Orbiting Carbon Observatory -3 (OCO-3) was deployed to the International Space Station in May, 2019. It is technically a single instrument, almost identical to OCO-2.

OCO-3 "Early" version is an expedited version intended for provisional familiarizing with the instrument spectral and calibration properties.

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.

OCO-3 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. The three spectrometers have different characteristics and are calibrated independently.

This collection encompass the pointing angles, as well as the position and velocity, of the spacecraft for each orbit. It contains L0 instrument science data (e.g., raw voltages, counts) at full resolution, time ordered, with duplicates and transmission errors removed.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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citation OCO-3 Science Team/Michael Gunson, AnnmarieEldering. 2020-05-25. OCO3_L1aAE. Version EarlyR. OCO-3 Level 0 spacecraft attitude and ephemeris data VEarlyR. 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/OCO3_L1aAE_EarlyR.html. Digital Science Data.
creator OCO-3 Science Team/Michael Gunson, AnnmarieEldering
data-presentation-form Digital Science Data
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO3_logo.jpg
identifier C1887568049-GES_DISC
issued 2020-05-22
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1887568049-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2020-05-22
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name OCO3_L1aAE
source_datajson_identifier true
source_hash bc70382dd9fe2faaf27f1f78e3b8320f0102d88b
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, -53.0], [180.0, -53.0], [180.0, 53.0], [-180.0, 53.0], [-180.0, -53.0]]]}
temporal 2020-05-01T00:00:00Z/2020-11-30T00:00:00Z
theme {OCO-3,geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • earth-science
  • geo
  • geoss
  • national
  • north-america
  • platform-characteristics
  • spectral-engineering
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer ANDREY SAVTCHENKO
maintainer_email Andrey.Savtchenko@nasa.gov
metadata_created 2025-11-20T03:56:39.720968
metadata_modified 2025-11-20T03:56:39.720973
notes The Orbiting Carbon Observatory -3 (OCO-3) was deployed to the International Space Station in May, 2019. It is technically a single instrument, almost identical to OCO-2. OCO-3 "Early" version is an expedited version intended for provisional familiarizing with the instrument spectral and calibration properties. 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. OCO-3 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. The three spectrometers have different characteristics and are calibrated independently. This collection encompass the pointing angles, as well as the position and velocity, of the spacecraft for each orbit. It contains L0 instrument science data (e.g., raw voltages, counts) at full resolution, time ordered, with duplicates and transmission errors removed.
num_resources 12
num_tags 11
title OCO-3 Level 0 spacecraft attitude and ephemeris data VEarlyR (OCO3_L1aAE) at GES DISC