The most important thing to notice is that Sounder coverage does not cover the full disk. For GOES west, the CONUS sector occurs every hour. The other sectors alternate with the CONUS sector. The most frequently scanned sector is the N. Pacific (off 2 hrs, 4 consecutive scans), then Hawaii (2 consecutive scans, off 4 hrs). The Mexico sector is not done routinely. For GOES east, the CONUS sector occurs every hour. The E. Caribbean, Gulf of Mexico, and N. Atlantic Sectors alternate with the CONUS sector: E. Caribbean (1 every 6 hrs.), N. Atlantic (1 every 6 hrs), then 4x Gulf of Mexico (off 2 hrs, on 4 hrs. except at end of day only 3 hrs.)