Modes of Operation

Three geographical sectors are available. Full Disk, CONUS and Mesoscale. The frequency of each sector is the mode of operations.

MODE 3 – Flex Mode – Expected to be the Primary Mode of Operation

FD (Full disk) images

  • Every 15 minutes
  • Images at approximately HH:00:39, HH:15:39, HH:30:39, and HH:45:39

CONUS (continental US coverage)

  • NOT a subset of the Full disk. They are scanned separately.
  • Images are every 5 minutes at:

HH:02:20, HH:07:20, HH:12:20, HH:17:20, HH:22:20, HH:27:20,

HH:32:20, HH:37:20, HH:42:20, HH:47:20, HH:52:20, HH:57:20


M1 or M2 (Meso scale sector 1 or 2)

  • Every minute offset by 30 seconds

E.g. M1 is at HH:MM:28, M2 are then at HH:MM:58


MODE 4 – Continuous Full Disk

FD (Full disk) images

  • Every 5 minutes

CONUS (Continental US coverage)

  • ARE subsetted from FD
  • Every 5 minutes

Mesoscale sectors are not available in Mode 4 (CFD)



FD (Full disk) images

  • Every 10 minutes

CONUS (Continental US coverage)

  • Every 5 minutes

2 meso domains every minute (or 1 domain every 30 seconds).


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