Introducing the GOES-M Imager - SSEC, UW-Madison

The Sampled Subpoint Resolution (SSR) in km is the effective resolution, after considering the east-west over-sampling at nadir. The instantaneous geometric field of view (IGFOV) at the sub-satellite point for the GOES-M shortwave and longwave infrared window and water vapor bands is 4.0 km. ................
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