Here are the GOES east and GOES west routine scan sectors. Note the size and time it takes for the satellites to complete a scan. The satellite scans from north to south while performing scans from west to east and back again (from east to west). Due to the different areal coverage, the sectors are different between GOES east and GOES west. Both schedules are set up to give coverage over the continental US every 15 minutes (except when there is a FULL DISK image) and coverage over the N. Hemisphere every half hour. The FULL DISK scan occurs every 3 hours.