National Oceanic and Atmospheric Administration, United States Department of Commerce

  • Attention NOAA-15, NOAA-18 and NOAA-19 Data Users! (6/11/2025):

    NOAA-18 was decommissioned on June 6, 2025 at 1740 UTC. NOAA will end delivery of all data from the remaining POES constellation from PDA (NOAA-15 and NOAA-19) on June 16, 2025 at 18:00 UTC. This decision is due to the natural aging of the instruments and the availability of newer, more advanced satellites. If you have a CLASS subscription, data will end June 16, 2025.

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

  • Attention GOES-16 Data Users! (updated on 4/7/2025):

    On April 7, 2025 at 1510 UTC, the GOES-19 satellite was declared the Operational GOES-East satellite. Shortly following the transition of GOES-19 to GOES-East, all data distribution from GOES-16 will be turned off. GOES-16 will commence drifting to the storage location at 104.7°W. All GOES-19 data are available back to beta product declaration dates.

  • Attention JPSS Users! (02/24/2025):
    • Starting on February 24, 2025, for all JPSS satellites (S-NPP, NOAA-20, and NOAA-21), the VIIRS SDRs and the VIIRS Bright Pixel IPs will be associated with and delivered with the VIIRS Terrain-Corrected Geolocation instead of the VIIRS Ellipsoid Geolocation.
    • Updated ESPC Notice: https://www.ospo.noaa.gov/data/messages/2025/01/MSG_20250115_1903.html
    • Historical VIIRS SDRs and VIIRS Bright Pixel IPs will continue to be associated with and delivered with the Ellipsoid Geolocation.
    • However, only for S-NPP, the VIIRS Ellipsoid Geolocation (GMODO) will remain orderable separately, just not associated with and delivered with the S-NPP VIIRS SDRs. GMODO will not be available from NOAA-20 or NOAA-21.
    • The VIIRS Day-Night Band SDR will continue to be associated with and delivered with the VIIRS Day-Night Band Geolocation.
    • VIIRS EDRs will not be affected by this JPSS geolocation change.

  • Attention JASON-3 Users! (2/20/2025):

    The problem that was causing degraded performance in the Jason-3 OGDRs has been corrected. Jason-3 has been returned to normal operations.

    The products are now suitable for operations, and CLASS unrestricted the OGDR data and began receiving Jason-3 IGDR both on February 19, 2025.

    For complete details on the outage, please see the ESPC Notification.

    You may request to be added to the ESPC notification email list to receive satellite updates by contacting ESPCOperations@noaa.gov

  • Attention CLASS Users! GOES-19 ABI data is now available. (1/28/2025):

    GOES-19 ABI L1b radiance data and ABI L2 Cloud and Moisture Imagery (CMI) products have been declared Provisional Validation maturity and are now available under the GOES-R Series ABI Products search page. Many more GOES-19 products will achieve Provisional Validation in the coming weeks.

  • Important Update: Changes to CLASS URLs (03/28/2024):

    The new CLASS website and dissemination URLs are now active and the legacy URLs are no longer valid, except the old CLASS website URL will redirect users to the new URL for some time. See changes below.

    Defunct ftp links New ftp links
    ftp://ftp-jpss.avl.class.noaa.gov/ ftp://ftp-data.class.noaa.gov/JPSS/ (JPSS TAR files) (Case sensitive)
    ftp://ftp.avl.class.noaa.gov ftp://ftp-order.class.noaa.gov/ (ad hoc orders)
    ftp://ftp.avl.class.noaa.gov/sub ftp://ftp-order.class.noaa.gov/sub/ (subscriptions)

    The new ftp login user id changed from "anonymous" to "ftp" followed by any set of password characters defined by the user. These changes are in accordance with the transfer rules established within the AWS Transfer Family.

    Defunct https links New https links
    https://download.avl.class.noaa.gov/download/jpss/ https://data.class.noaa.gov/JPSS/ (JPSS TAR files) (Case sensitive)
    https://download.avl.class.noaa.gov/download/ https://order.class.noaa.gov/public/ (ad hoc orders)
    https://download.avl.class.noaa.gov/download/sub https://order.class.noaa.gov/public/sub/ (subscriptions)
    Old CLASS website URL New CLASS website URL
    https://www.avl.class.noaa.gov https://www.aev.class.noaa.gov

    Note: www.class.noaa.gov will continue to work

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

  • Attention JPSS Data Users! (updated on 10/19/2023):

    Now available! The reprocessed Sensor Data Records (SDR) for all instruments flown on S-NPP and reprocessed Temperature Data Records (TDR) for the ATMS instrument flown on S-NPP is now accessible via the CLASS web ordering system. The reprocessed data is located under their own data families listed on the drop down product menu. The date range which covers the reprocessing period for each instrument is:

    • ATMS SDR/TDR (2011-11-08 - 2019-10-15) - The complete record is available under RPATMSSDR and RPATMSTDR
    • CrIS SDR (2012-02-20 - 2020-01-29) - The complete record is available under RPCRISSDR
    • OMPS SDR (2012-01-30 - 2020-05-30) - The complete record is available under RPOMPSSDR
    • VIIRS SDR (2012-01-02 - 2020-04-30) - The complete record is available under RPVIIRSSDR

    The operational data received after the reprocessed date ranges uses the latest version of the reprocessing algorithm.

  • 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.aev.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.