About LRIT

The digital Low Rate Information Transmission (LRIT) is an international standard for data transmission that was developed by the Coordination Group for Meteorological Satellites (CGMS) in response to a recommendation on digital meteorological satellite broadcasts. NOAA uses its HRIT/LRIT broadcast system to disseminate reduced resolution Geostationary Operational Environmental Satellite (GOES) data, GOES Data Collection System (DCS) observations, the National Weather Service’s Emergency Managers Weather Information Network (EMWIN) information, and other hydrological/meteorological products and imagery to users using the 1691.0 Megahertz GOES L band down-link frequency. Currently, there are no active LRIT broadcasts as the follow-on GOES-R series HRIT/EMWIN broadcasts are active for both GOES East and West. The LRIT broadcast capability will be a backup service available from the GOES 13, 14 and 15 satellites in the event of a contingency until they are officially de-commissioned.