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    • TEMPO geolocated Earth radiances twilight V03 (PROVISIONAL)

    Metadata Updated: August 29, 2025

    Level 1 twilight radiance files provide radiance measured during twilight hours to capture city lights at TEMPO’s native spatial resolution, ~10 km^2 at the center of the Field of Regard (FOR), for individual granules. Each granule covers the entire North-South TEMPO FOR but only a portion of the East-West FOR. The files are provided in netCDF4 format, and contain information on radiometrically calibrated and geolocated radiances for the UV and visible bands, corresponding noise, geolocation, viewing geometry, quality flags and other ancillary information. The product is produced using the L0-1b processor which includes image processing steps to produce radiometrically calibrated radiances with nominal navigation. These data reached provisional validation on December 9, 2024.

    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 April 11, 2025
    Metadata Updated Date August 29, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date August 29, 2025
    Publisher NASA/LARC/SD/ASDC
    Maintainer
    Identifier 10.5067/IS-40e/TEMPO/RADT_L1.003
    Data Last Modified 2025-08-28
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 43a5e333-79f2-4ac1-ac95-321b1314ba7e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL http://tempo.si.edu/
    Old Spatial "CARTESIAN",{"Boundary":{"Points":{"Longitude":-170,"Latitude":10},{"Longitude":-10,"Latitude":10},{"Longitude":-10,"Latitude":80},{"Longitude":-170,"Latitude":80},{"Longitude":-170,"Latitude":10}}}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash f44120f48dd58ea39cf9d74c9167b948c0bfd4648744a969146f1a9f58bbc54e
    Source Schema Version 1.1
    Spatial
    Temporal 2023-08-01/2023-08-01

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