Beginning March 3, 2021, CLASS will implement a mechanism to ensure that your orders continue to be processed in a timely fashion. In order to do this CLASS will accept up to a maximum of 25 orders per 24 hour period in order to prohibit excessive numbers of orders placed by those very few users. Also, CLASS will continue to increase the allowed file count limits on those datasets containing high daily counts of files. If you have a need to place more than 25 orders per day or have any questions, please contact CLASS Helpdesk. Thank you.
Attention ALL CLASS Users! (12/23/2020):
The following web browsers, Firefox and Chrome, will no longer support ftp download after January 1, 2021. IE will support ftp through August, 2021. Please consider using Filezilla (filezilla-project.org) or Winscp (winscp.net). If you have any questions, please contact the CLASS Helpdesk.
The URL: ftp://ftp-npp.bou.class.noaa.gov/ - where the most recent 90 days of daily JPSS products were hosted, will be retired on December 31, 2020. No new data will be written to the site after December 1, 2020. The replacement URL is ftp://ftp-jpss.avl.class.noaa.gov/, which now contains data since October 15, 2020. Please start using the new site as soon as feasible. Contact the CLASS Helpdesk for any questions.
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A number of legacy products generated since the launch of S-NPP have been replaced by the higher quality NOAA Enterprise products.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):