I will add for the U.S. based satellites the disc images are from the NOAA GOES sats which are in a Geosynchronous orbit but there is also the NOAA-15/18/19 whi

I will add for the U.S. based satellites the disc images are from the NOAA GOES sats which are in a Geosynchronous orbit but there is also the NOAA-15/18/19 which are lower in a Sun-synchronous orbit and you get a strip as it passes over.