run by the department of defense
The DMSP program designs, builds, launches,
and maintains several near polar orbiting,
sun synchronous satellites monitoring the meteorological,
oceanographic, and solar-terrestrial
DMSP satellites are in a near polar, sun synchronous orbit
approximately 830 kilometers above the earth. Each
satellite crosses any point on the earth twice a day and has an orbital
period of about 101 minutes, thus providing complete
global coverage every six hours.
Each DMSP satellite monitors the atmospheric, oceanographic and
environment of the Earth.