New routine schedule

EWS-G1 (Electro-optical Infrared Weather System Geostationary) is a U.S. Space Force mission. The imager is now running a different routine scan schedule, as can be seen on the UW/SSEC geo-browser. This schedule includes scans of the Indian Ocean, the extended Indian Ocean and Full Disks. Previously only Full Disk images had been obtained every 30 minutes. An EWS-G1 “quick-guide (pdf).” EWS-G1 imagery has been available via the UW/SSEC since late 2020. The EWS-G1 was formerly NOAA’s GOES-13. EWS-G1 has employed the “XGOHI” remapping of data before GVAR generation, to handle larger inclination angles. This capability was first employed on GOES-10 (and then GOES-12) when their images provided special coverage of the Southern Hemisphere for a combined almost 7 years.

GOES-15 has become EWS-G2

It was recently announced by the Secretary of the Air Force that GOES-15 has become EWS-G2: “The U.S. Space Force accepted the transfer of a second geostationary weather satellite from the National Oceanic and Atmospheric Administration to extend persistent weather coverage of the Indian Ocean region until the 2030 timeframe. … As it currently does with EWS-G1, NOAA will operate EWS-G2 on behalf of the Space Force from the NOAA Satellite Operations Facility in Suitland, Maryland, and Wallops Command and Data Acquisition Station in Wallops Island, Virginia.”

EWS-G2 has the same spectral coverage as the EWS-G1. The EWS-G2 was formerly NOAA’s GOES-15. GOES-15 was launched in March 2010 and the first GOES-15 images were sent on April 6, 2010. A GOES-15 technical report which was written soon after launch.

More

The posted near realtime imagery are free for public use (please credit UW-Madison/SSEC) and users can contact UW/SSEC Satellite Data Services for information on data access / subscription. Most of the above images were made using the McIDAS-X software.

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