Imaging · dataset · 2026
OCO-2 Level 1B calibrated, geolocated science spectra V11.2 (OCO2_L1B_Science)
Listed in NASA Data Portal
Version 11.2 is the current version of the data set.
Description
Older versions will no longer be available and are superseded by Version 11.2. 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. The three spectrometers have different characteristics and are calibrated independently.
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Their raw data numbers (DN) are delivered correlated in time to the Level 1B process as Level 1A products. Each band has 1016 spectral elements, although some are masked out in the L2 retrieval.This product is the output from the Level 1B process. It converts the raw instrument data numbers into calibrated radiances.
This conversion is based upon files of instrument characteristics and algorithm parameters that may vary over time. In addition to calibrated radiances, the Level 1B output products have geolocation information recorded for each measurement for use in higher-level processes.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/OCO2_L1B_Science_11.2.html ↗
download · from data nasa gov
- Resource search.earthdata.nasa.gov/search/granules?p=C2913032028-GES_DISC ↗
download · from data nasa gov
- Resource oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L1B_Science.11.2/contents.html ↗
download · from data nasa gov
- Resource ocov2.jpl.nasa.gov ↗
download · from data nasa gov
- Resource oco2.gesdisc.eosdis.nasa.gov/data/OCO2_DATA/OCO2_L1B_Science.11.2 ↗
download · from data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO_L1B_ATBD.pdf ↗
download · from data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf ↗
download · from data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_L2_DQ_Statement_v11.2.pdf ↗
download · from data nasa gov
- Resource disc.gsfc.nasa.gov/information/howto?title=How%2520to%2520download%2520a%2520spat… ↗
download · from data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/SDOS_SIS_L1b.V7.pdf ↗
download · from data nasa gov
- Resource github.com/nasa/RtRetrievalFramework ↗
download · from data nasa gov
- Resource disc.gsfc.nasa.gov/information/documents?title=OCO%2520Known%2520Data%2520Issues ↗
download · from data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO-2_Documents.pdf ↗
download · from data nasa gov
- Resource ocov2.jpl.nasa.gov/science/publications ↗
download · from data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2913032028-GES_DISC.iso19115 ↗
download · from data nasa gov
- JPEG docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_logo.jpg ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/oco-2-level-1b-calibrated-geolocated-science-spectra-v… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=e6f8bcb6-b7c3-487e-8518-17ceb99e5… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
- Inferred from text
- Space sciences 71%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | e6f8bcb6-b7c3-487e-8518-17ceb99e5841 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:5109 | enrichment · data nasa gov | taxonomy-embedding@1.0.0 | title+keywords+description (71%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |