To what degree of precision, is it possible to estimate the brightness of a town with satellite data? Which data allow us to estimate the brightness?

There is data called "Night Light," which is satellite data showing the brightness of the ground at night.

Tellus exhibit CE-SAT-ⅡB data as "Night Light" data.

Please refer to the following introduction.

▼Sample data of "CE-SAT-IIB", a nano-satellite of CANON ELECTRONICS INC. are now available free of charge.