OCO-2 Level 1B calibrated, geolocated calibration spectra V11.2 (OCO2_L1B_Calibration) at GES DISC

Version 11.2 is the current version of the data set. Older versions will no longer be available and are superseded by Version 11.2.

The Orbiting Carbon Observatory is the first NASA missiondesigned to collect space-based measurements of atmospheric carbon dioxidewith the precision, resolution, and coverage needed to characterize theprocesses 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 ofreflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and inmolecular oxygen (O2) A-Band at 0.76 micrometers. The three spectrometers have different characteristics and are calibrated independently. Their raw data numbers (DN) are delivered correlated in time tothe Level 1B process as Level 1A products. Each band has 1016 spectralelements, although some are masked out in the L2 retrieval.This L1B product results from calibration mode measurements (e.g., Lunar,Solar, Dark observations), and thus it differs from the OCO2_L1B_Science(L1bSc) product. The differences in the product formats are only in the geolocation information provided. Whereas the L1bSc products report geolocation data for each sounding, calibration products report the directionof the boresight vector.

Data and Resources

Additional Info

Field Value
Maintainer KRISTAN MORGAN
Last Updated March 31, 2025, 18:56 (UTC)
Created March 31, 2025, 18:56 (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. 2024-04-01. OCO2_L1B_Calibration. Version 11.2. OCO-2 Level 1B calibrated, geolocated calibration spectra V11.2. 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_L1B_Calibration_11.2.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 e3a7efed-53a1-49f5-bfd5-a3c27dd40b36
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C2913031060-GES_DISC
issued 2024-04-01
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C2913031060-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2024-04-01
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name OCO2_L1B_Calibration
source_datajson_identifier true
source_hash 77c37e2b598305ee4382e3cb4309b7a5914c6ca61d1e04bd4a460505ce9f6a15
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 2019-11-30T00:00:00Z/2024-04-22T00:00:00Z
theme {OCO-2,geospatial}