The Comprehensive Large Array-data Stewardship System (CLASS) is an electronic library of NOAA environmental data. This web site provides capabilities for finding and obtaining those data.

CLASS is NOAA's premier on-line facility for the distribution of NOAA and US Department of Defense (DoD) Polar-orbiting Operational Environmental Satellite (POES) data, NOAA's Geostationary Operational Environmental Satellite (GOES) data, and derived data.

NOTICE:

• Attention: Orders placed after 26 June may be delayed due to maintenance.
• Attention Jason-2 Users: Due to a software bug in the data processing system at ESPC, 117 of the level-2 J2-XGDR files were corrupted prior to reception by CLASS. See the CLASS Help News for details.
• Attention NOAA POES Users: On 2 June 2009 at 0000 UTC, NOAA-19 became the primary afternoon satellite to support NOAA's weather satellite mission. All Local Area Coverage (1 km data) scheduled passes will switch from NOAA-18 to NOAA-19. Please click here for the full notice.

NEWS:

• NOAA To Hold 6th GOES Users' Conference: The 6th GOES Users' Conference, Bringing Environmental Benefits to a Society of Users, organized by the National Oceanic and Atmospheric Administration (NOAA) will be held on 3-5 November 2009 in Madison, Wisconsin. Click here for more details.