Respective country organizations or compan ies operate the Earth observation satellites by using ground facilities. These ground facilities include tracking and control stations where onboard components and sensors are monitored, orbits and altitudes are controlled, and observation data are received.
Japanese satellites are mainly operated by JAXA, and satellites of foreign countries such as USA, India, and ESA are operated by governmental organizations or companies. International satellites with Japanese sensors are also operated by foreign organizations.
When users need to observe a particular place, they should apply to the satellite operation organizations in advance.