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Near Real-time SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures V105

Metadata Updated: June 11, 2024

This Near Real-Time (NRT) data set corresponds to the standard SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures (SPL1BTB) product. The data provide calibrated estimates of time-ordered geolocated brightness temperature data measured by the Soil Moisture Active Passive (SMAP) passive microwave radiometer, the SMAP L-band radiometer. These Near Real-Time data are available within three hours of satellite observation. The data are created using the latest available ancillary data and spacecraft and antenna attitude data to reduce latency. The SMAP satellite orbits Earth every two to three days, providing half-orbit, ascending and descending, coverage from 86.4°S to 86.4°N in swaths 1000 km across. Data are stored for approximately two to three weeks. Thus, at any given time, users have access to at least fourteen consecutive days of Near Real-Time data through the NSIDC DAAC. Users deciding between the NRT and standard SMAP products should consider the immediacy of their needs versus the quality of the data required. Near real-time data are provided for operational needs whereas standard products meet the quality needs of scientific research. If latency is not a primary concern, users are encouraged to use the standard science product, SPL1BTB (https://doi.org/10.5067/ZHHBN1KQLI20).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date May 30, 2023
Metadata Updated Date June 11, 2024

Metadata Source

Harvested from NASA Data.json

Graphic Preview

This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date June 11, 2024
Publisher NASA NSIDC DAAC
Maintainer
Identifier C2257958430-NSIDC_ECS
Data First Published 2024-05-23
Language en-US
Data Last Modified 2024-06-09
Category geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Near Real-time SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures V105. Version 105. Archived by National Aeronautics and Space Administration, U.S. Government, NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/UH70WUPQKCFR.
Graphic Preview Description This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.
Graphic Preview File https://worldview.earthdata.nasa.gov/?v=-188,-85,183,86&l=SMAP_L1_Passive_Faraday_Rotation_Fore,SMAP_L1_Passive_Faraday_Rotation_Aft,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor
Harvest Object Id b6aa7204-4324-407c-ad82-db35f8ad4867
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/UH70WUPQKCFR
Metadata Type geospatial
Old Spatial -180.0 -86.4 180.0 86.4
Program Code 026:001
Source Datajson Identifier True
Source Hash 8cfb20c0160531ce0be5883543aa645830984cc5737d782692b352441499f97e
Source Schema Version 1.1
Spatial
Temporal 2024-05-23T00:00:00Z/2024-06-10T00:00:00Z

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