This is likely because the DMSP satellites are outdated:
"In 2015, Congress voted to terminate the DMSP program and to scrap the DMSP 5D-3/F20 satellite, ordering the Air Force to move on to a next-generation system." https://en.wikipedia.org/wiki/Defense_Meteorological_Satelli...
The GOES-R satellites seem to have equal or better resolution: https://journals.ametsoc.org/view/journals/atot/4/4/1520-042... https://en.wikipedia.org/wiki/GOES-16
DMSP resolves to 600m, while GOES-R resolves to 500m (don't confuse it with the older GOES satellites mentioned in the article).
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