OCO-2 Level 1B calibrated, geolocated calibration spectra, Retrospective Processing V10r (OCO2_L1B_Calibration) at GES DISC

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 Older versions will no longer be available and are superseded by Version 10r.

Version 8r is the current version of the data set. Version 7r has been superseded by Version 8r. 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.This is the retrospective processing where the calibration data is estimated from the full timeseries of data (before, during, and after the measurements), and is expected to be of slightly higher quality.

Data and Resources

Additional Info

Field Value
Maintainer JENNIFER WEI, PH. D
Last Updated February 19, 2025, 11:11 (UTC)
Created February 19, 2025, 11:11 (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. 2019-07-01. OCO2_L1B_Calibration. Version 10r. OCO-2 Level 1B calibrated, geolocated calibration spectra, Retrospective Processing V10r. 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_10r.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/Images/OCO2_L1B_Calibration_8r.jpeg
harvest_object_id 16bbef2b-3ad5-4ad3-a88e-34bcba51d3a1
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1685783883-GES_DISC
issued 2019-06-27
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1685783883-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2017-06-17
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 52536381b9c3ce067ba5ed592bc71372a61acc2348931620cdc1e4a54bc7f5ff
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 2014-09-06T00:00:00Z/2022-01-17T00:00:00Z
theme {OCO-2,geospatial}