National Oceanic and Atmospheric Administration, United States Department of Commerce


  • Attention JPSS Users! (6/18/20):
    A number of legacy products generated since the launch of S-NPP have been replaced by the higher quality NOAA Enterprise products. CLASS has been receiving these newer products for over two years now. CLASS will no longer be receiving these legacy products after June 24, 2020. Please refer to the table here for a listing of legacy products and corresponding newer products. Please contact the CLASS Helpdesk with any questions or concerns.

  • Attention GOES-R users! (5/22/2020):
    GOES-R series INST-CAL files are missing for the following dates: 02/22/20 to 04/02/20 and 04/14/20 to current. Nominal conditions of the return flow of the data has not been determined at this time. Contact the CLASS Helpdesk for any questions.

  • Attention New CLASS Users – See tutorial on accessing data from CLASS (4/12/2018):

    Please click on the following link to get step by step instructions on how to use CLASS to search and order data: https://www.avl.class.noaa.gov/notification/pdfs/CLASS%20Data%20Access%20Tutorial_042015.pdf.

    If you have any questions or need assistance please submit an email to CLASS Help Desk.